H3C S3100 Series Ethernet Switches Operation Manual (For Soliton)(V1.02)

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02-Login Operation
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Table of Contents

Chapter 1 Logging into an Ethernet Switch. 1-1

1.1 Logging into an Ethernet Switch. 1-1

1.2 Introduction to the User Interface. 1-1

1.2.1 Supported User Interfaces. 1-1

1.2.2 User Interface Index. 1-2

1.2.3 Common User Interface Configuration. 1-2

Chapter 2 Logging in through the Console Port 2-1

2.1 Introduction. 2-1

2.2 Logging in through the Console Port 2-1

2.3 Console Port Login Configuration. 2-4

2.3.1 Common Configuration. 2-4

2.3.2 Console Port Login Configurations for Different Authentication Modes. 2-5

2.4 Console Port Login Configuration with Authentication Mode Being None. 2-6

2.4.1 Configuration Procedure. 2-6

2.4.2 Configuration Example. 2-8

2.5 Console Port Login Configuration with Authentication Mode Being Password. 2-9

2.5.1 Configuration Procedure. 2-9

2.5.2 Configuration Example. 2-11

2.6 Console Port Login Configuration with Authentication Mode Being Scheme. 2-13

2.6.1 Configuration Procedure. 2-13

2.6.2 Configuration Example. 2-15

Chapter 3 Logging in through Telnet 3-1

3.1 Introduction. 3-1

3.1.1 Common Configuration. 3-1

3.1.2 Telnet Configurations for Different Authentication Modes. 3-2

3.2 Telnet Configuration with Authentication Mode Being None. 3-4

3.2.1 Configuration Procedure. 3-4

3.2.2 Configuration Example. 3-5

3.3 Telnet Configuration with Authentication Mode Being Password. 3-6

3.3.1 Configuration Procedure. 3-6

3.3.2 Configuration Example. 3-7

3.4 Telnet Configuration with Authentication Mode Being Scheme. 3-9

3.4.1 Configuration Procedure. 3-9

3.4.2 Configuration Example. 3-13

3.5 Telnetting to a Switch. 3-14

3.5.1 Telnetting to a Switch from a Terminal 3-14

3.5.2 Telnetting to another Switch from the Current Switch. 3-16

Chapter 4 Logging in Using a Modem.. 4-1

4.1 Introduction. 4-1

4.2 Configuration on the Switch Side. 4-1

4.2.1 Modem Configuration. 4-1

4.2.2 Switch Configuration. 4-2

4.3 Modem Connection Establishment 4-2

Chapter 5 Logging in through the Web-based Network Management System.. 5-1

5.1 Introduction. 5-1

5.2 Establishing an HTTP Connection. 5-1

5.3 Configuring the Login Banner 5-2

5.3.1 Configuration Procedure. 5-2

5.3.2 Configuration Example. 5-3

5.4 Enabling/Disabling the WEB Server 5-4

Chapter 6 Logging in through NMS. 6-1

6.1 Introduction. 6-1

6.2 Connection Establishment Using NMS. 6-1

Chapter 7 User Control 7-1

7.1 Introduction. 7-1

7.2 Controlling Telnet Users. 7-1

7.2.1 Prerequisites. 7-1

7.2.2 Controlling Telnet Users by Source IP Addresses. 7-2

7.2.3 Controlling Telnet Users by Source and Destination IP Addresses. 7-2

7.2.4 Controlling Telnet Users by Source MAC Addresses. 7-3

7.2.5 Configuration Example. 7-4

7.3 Controlling Network Management Users by Source IP Addresses. 7-4

7.3.1 Prerequisites. 7-5

7.3.2 Controlling Network Management Users by Source IP Addresses. 7-5

7.3.3 Configuration Example. 7-6

7.4 Controlling Web Users by Source IP Address. 7-6

7.4.1 Prerequisites. 7-7

7.4.2 Controlling Web Users by Source IP Addresses. 7-7

7.4.3 Disconnecting a Web User by Force. 7-7

7.4.4 Configuration Example. 7-7

 


Chapter 1  Logging into an Ethernet Switch

1.1  Logging into an Ethernet Switch

You can log into an S3100 Ethernet switch in one of the following ways:

l           Logging in locally through the Console port

l           Logging in locally or remotely through an Ethernet port by means of Telnet or SSH

l           Telnetting to the Console port using a modem

l           Logging into the Web-based network management system

l           Logging in through NMS (network management station)

1.2  Introduction to the User Interface

1.2.1  Supported User Interfaces

 

&  Note:

The auxiliary (AUX) port and the Console port of an H3C Ethernet switch are the same port (refereed to as Console port in the following part). You will be in the AUX user interface if you log in through this port.

 

S3100 series Ethernet switches support two types of user interfaces: AUX and VTY.

l           AUX user interface: A view when you log in through the AUX port. AUX port is a line device port.

l           Virtual type terminal (VTY) user interface: A view when you log in through VTY. VTY port is a logical terminal line used when you access the device by means of Telnet or SSH.

Table 1-1 Description on user interface

User interface

Applicable user

Port used

Description

AUX

Users logging in through the Console port

Console port

Each switch can accommodate one AUX user.

VTY

Telnet users and SSH users

Ethernet port

Each switch can accommodate up to five VTY users.

 

1.2.2  User Interface Index

Two kinds of user interface index exist: absolute user interface index and relative user interface index.

1)         The absolute user interface indexes are as follows:

l           The absolute AUX user interfaces is numbered 0.

l           VTY user interface indexes follow AUX user interface indexes. The first absolute VTY user interface is numbered 1, the second is 2, and so on.

2)         A relative user interface index can be obtained by appending a number to the identifier of a user interface type. It is generated by user interface type. The relative user interface indexes are as follows:

l           AUX user interfaces is numbered 0.

l           VTY user interfaces are numbered VTY0, VTY1, and so on.

1.2.3  Common User Interface Configuration

Table 1-2 Common user interface configuration

Operation

Command

Description

Lock the current user interface

lock

Optional

Execute this command in user view.

A user interface is not locked by default.

Specify to send messages to all user interfaces/a specified user interface

send { all | number | type number }

Optional

Execute this command in user view.

Free a user interface

free user-interface [ type ] number

Optional

Execute this command in user view.

Enter system view

system-view

Set the banner

header [ incoming | legal | login | shell ] text

Optional

By default, no banner is configured

Set a system name for the switch

sysname string

Optional

By default, the system name is H3C.

Enable copyright information displaying

copyright-info enable

Optional

By default, copyright displaying is enabled. That is, the copy right information is displayed on the terminal after a user logs in successfully.

Enter user interface view

user-interface [ type ] first-number [ last-number ]

Display the information about the current user interface/all user interfaces

display users [ all ]

Optional

You can execute the display command in any view.

Display the physical attributes and configuration of the current/a specified user interface

display user-interface [ type number | number ]

Display the information about the current web users

display web users

 


Chapter 2  Logging in through the Console Port

2.1  Introduction

To log in through the Console port is the most common way to log into a switch. It is also the prerequisite to configure other login methods. By default, you can locally log into an S3100 Ethernet switch through its Console port only.

Table 2-1 lists the default settings of a Console port.

Table 2-1 The default settings of a Console port

Setting

Default

Baud rate

9,600 bps

Flow control

None

Check mode (Parity)

None

Stop bits

1

Data bits

8

 

To log into a switch through the Console port, make sure the settings of both the Console port and the user terminal are the same.

After logging into a switch, you can perform configuration for AUX users. Refer to section 2.3  Console Port Login Configuration” for more.

2.2  Logging in through the Console Port

Following are the procedures to connect to a switch through the Console port.

1)         Connect the serial port of your PC/terminal to the Console port of the switch, as shown in Figure 2-1.

Figure 2-1 Diagram for connecting to the Console port of a switch

2)         If you use a PC to connect to the Console port, launch a terminal emulation utility (such as Terminal in Windows 3.X or HyperTerminal in Windows 9X/Windows 2000/Windows XP. The following assumes that you are running Windows XP) and perform the configuration shown in Figure 2-2 through Figure 2-4 for the connection to be created. Normally, both sides (that is, the serial port of the PC and the Console port of the switch) are configured as those listed in Table 2-1.

Figure 2-2 Create a connection

Figure 2-3 Specify the port used to establish the connection

Figure 2-4 Set port parameters

3)         Turn on the switch. You will be prompted to press the Enter key if the switch successfully completes POST (power-on self test). The prompt (such as <H3C>) appears after you press the Enter key, as shown in Figure 2-5.

Figure 2-5 HyperTerminal CLI

4)         You can then configure the switch or check the information about the switch by executing the corresponding commands. You can also acquire help by typing the ? character. Refer to related parts in this manual for information about the commands used for configuring the switch.

2.3  Console Port Login Configuration

2.3.1  Common Configuration

Table 2-2 lists the common configuration of Console port login.

Table 2-2 Common configuration of Console port login

Configuration

Remarks

Console port configuration

Baud rate

Optional

The default baud rate is 9,600 bps.

Check mode

Optional

By default, the check mode of the Console port is set to “none”, which means no check bit.

Stop bits

Optional

The default stop bits of a Console port is 1.

Data bits

Optional

The default data bits of a Console port is 8.

AUX user interface configuration

Configure the command level available to the users logging into the AUX user interface

Optional

By default, commands of level 3 are available to the users logging into the AUX user interface.

Terminal configuration

Make terminal services available

Optional

By default, terminal services are available in all user interfaces

Set the maximum number of lines the screen can contain

Optional

By default, the screen can contain up to 24 lines.

Set history command buffer size

Optional

By default, the history command buffer can contain up to 10 commands.

Set the timeout time of a user interface

Optional

The default timeout time is 10 minutes.

 

  Caution:

The change to Console port configuration takes effect immediately, so the connection may be disconnected when you log in through a Console port and then configure this Console port. To configure a console port, you are recommended to log into the switch in other ways. To log into a switch through its Console port after you modify the Console port settings, you need to modify the corresponding settings of the terminal emulation utility running on your PC accordingly in the dialog box shown in Figure 2-4.

 

2.3.2  Console Port Login Configurations for Different Authentication Modes

Table 2-3 lists Console port login configurations for different authentication modes.

Table 2-3 Console port login configurations for different authentication modes

Authentication mode

Console port login configuration

Remarks

None

Perform common configuration

Perform common configuration for Console port login

Optional

Refer to Table 2-2.

Password

Configure the password

Configure the password for local authentication

Required

Perform common configuration

Perform common configuration for Console port login

Optional

Refer to Table 2-2.

Scheme

Specify to perform local authentication or remote RADIUS authentication

AAA configuration specifies whether to perform local authentication or RADIUS authentication

Optional

Local authentication is performed by default.

Refer to the AAA part for more.

Configure user name and password

Configure user names and passwords for local/RADIUS users

Required

l      The user name and password of a local user are configured on the switch.

l      The user name and password of a RADIUS user are configured on the RADIUS server. Refer to user manual of RADIUS server for more.

Manage AUX users

Set service type for AUX users

Required

Perform common configuration

Perform common configuration for Console port login

Optional

Refer to Table 2-2.

 

&  Note:

Changes made to the authentication mode for Console port login takes effect after you quit the command-line interface and then log in again.

 

2.4  Console Port Login Configuration with Authentication Mode Being None

2.4.1  Configuration Procedure

Table 2-4 Console port login configuration with the authentication mode being none

Operation

Command

Description

Enter system view

system-view

Enter AUX user interface view

user-interface aux 0

Configure not to authenticate users

authentication-mode none

Required

By default, users logging in through the Console port (AUX user interface) are not authenticated.

Configure the Console port

Set the baud rate

speed speed-value

Optional

The default baud rate of a Console port is 9,600 bps.

Set the check mode

parity { even | none | odd }

Optional

By default, the check mode of a Console port is none, that is, no check is performed.

Set the stop bits

stopbits { 1 | 1.5 | 2 }

Optional

The stop bits of a Console port is 1.

Set the data bits

databits { 7 | 8 }

Optional

The default data bits of a Console port is 8.

Configure the command level available to users logging into the user interface

user privilege level level

Optional

By default, commands of level 3 are available to users logging into the AUX user interface, and commands of level 0 are available to users logging into the VTY user interface.

Enable terminal services

shell

Optional

By default, terminal services are available in all user interfaces.

Set the maximum number of lines the screen can contain

screen-length screen-length

Optional

By default, the screen can contain up to 24 lines.

You can use the screen-length 0 command to disable the function to display information in pages.

Set the history command buffer size

history-command max-size value

Optional

The default history command buffer size is 10. That is, a history command buffer can store up to 10 commands by default.

Set the timeout time for the user interface

idle-timeout minutes [ seconds ]

Optional

The default timeout time of a user interface is 10 minutes.

With the timeout time being 10 minutes, the connection to a user interface is terminated if no operation is performed in the user interface within 10 minutes.

You can use the idle-timeout 0 command to disable the timeout function.

 

2.4.2  Configuration Example

I. Network requirements

Assume that the switch is configured to allow users to log in through Telnet, and the user level is set to the administrator level (level 3). Perform the following configurations for users logging in through the Console port (AUX user interface).

l           Do not authenticate the users.

l           Commands of level 2 are available to the users logging into the AUX user interface.

l           The baud rate of the Console port is 19,200 bps.

l           The screen can contain up to 30 lines.

l           The history command buffer can contain up to 20 commands.

l           The timeout time of the AUX user interface is 6 minutes.

II. Network diagram

Figure 2-6  Network diagram for AUX user interface configuration (with the authentication mode being none)

III. Configuration procedure

# Enter system view.

<Sysname> system-view

# Enter AUX user interface view.

[Sysname] user-interface aux 0

# Specify not to authenticate users logging in through the Console port.

[Sysname-ui-aux0] authentication-mode none

# Specify commands of level 2 are available to users logging into the AUX user interface.

[Sysname-ui-aux0] user privilege level 2

# Set the baud rate of the Console port to 19,200 bps.

[Sysname-ui-aux0] speed 19200

# Set the maximum number of lines the screen can contain to 30.

[Sysname-ui-aux0] screen-length 30

# Set the maximum number of commands the history command buffer can store to 20.

[Sysname-ui-aux0] history-command max-size 20

# Set the timeout time of the AUX user interface to 6 minutes.

[Sysname-ui-aux0] idle-timeout 6

After the above configuration, you need to modify the configuration of the terminal emulation utility running on the PC accordingly in the dialog box shown in Figure 2-4 to log into the switch successfully.

2.5  Console Port Login Configuration with Authentication Mode Being Password

2.5.1  Configuration Procedure

Table 2-5 Console port login configuration with the authentication mode being password

Operation

Command

Description

Enter system view

system-view

Enter AUX user interface view

user-interface aux 0

Configure to authenticate users using the local password

authentication-mode password

Required

By default, users logging into a switch through the Console port are not authenticated; while those logging in through Modems or Telnet are authenticated.

Set the local password

set authentication password { cipher | simple } password

Required

Configure the Console port

Set the baud rate

speed speed-value

Optional

The default baud rate of an AUX port (also the Console port) is 9,600 bps.

Set the check mode

parity { even | none | odd }

Optional

By default, the check mode of a Console port is set to none, that is, no check bit.

Set the stop bits

stopbits { 1 | 1.5 | 2 }

Optional

The default stop bits of a Console port is 1.

Set the data bits

databits { 7 | 8 }

Optional

The default data bits of a Console port is 8.

Configure the command level available to users logging into the user interface

user privilege level level

Optional

By default, commands of level 3 are available to users logging into the AUX user interface.

Make terminal services available to the user interface

shell

Optional

By default, terminal services are available in all user interfaces.

Set the maximum number of lines the screen can contain

screen-length screen-length

Optional

By default, the screen can contain up to 24 lines.

You can use the screen-length 0 command to disable the function to display information in pages.

Set history command buffer size

history-command max-size value

Optional

The default history command buffer size is 10. That is, a history command buffer can store up to 10 commands by default.

Set the timeout time for the user interface

idle-timeout minutes [ seconds ]

Optional

The default timeout time of a user interface is 10 minutes.

With the timeout time being 10 minutes, the connection to a user interface is terminated if no operation is performed in the user interface within 10 minutes.

You can use the idle-timeout 0 command to disable the timeout function.

 

2.5.2  Configuration Example

I. Network requirements

Assume the switch is configured to allow users to log in through Telnet, and the user level is set to the administrator level (level 3). Perform the following configurations for users logging in through the Console port (AUX user interface).

l           Authenticate the users using passwords.

l           Set the local password to 123456 (in plain text).

l           The commands of level 2 are available to the users.

l           The baud rate of the Console port is 19,200 bps.

l           The screen can contain up to 30 lines.

l           The history command buffer can store up to 20 commands.

l           The timeout time of the AUX user interface is 6 minutes.

II. Network diagram

Figure 2-7 Network diagram for AUX user interface configuration (with the authentication mode being password)

III. Configuration procedure

# Enter system view.

<Sysname> system-view

# Enter AUX user interface view.

[Sysname] user-interface aux 0

# Specify to authenticate users logging in through the Console port using the local password.

[Sysname-ui-aux0] authentication-mode password

# Set the local password to 123456 (in plain text).

[Sysname-ui-aux0] set authentication password simple 123456

# Specify commands of level 2 are available to users logging into the AUX user interface.

[Sysname-ui-aux0] user privilege level 2

# Set the baud rate of the Console port to 19,200 bps.

[Sysname-ui-aux0] speed 19200

# Set the maximum number of lines the screen can contain to 30.

[Sysname-ui-aux0] screen-length 30

# Set the maximum number of commands the history command buffer can store to 20.

[Sysname-ui-aux0] history-command max-size 20

# Set the timeout time of the AUX user interface to 6 minutes.

[Sysname-ui-aux0] idle-timeout 6

After the above configuration, you need to modify the configuration of the terminal emulation utility running on the PC accordingly in the dialog box shown in Figure 2-4 to log into the switch successfully.

2.6  Console Port Login Configuration with Authentication Mode Being Scheme

2.6.1  Configuration Procedure

Table 2-6 Console port login configuration with the authentication mode being scheme

Operation

Command

Description

Enter system view

system-view

Configure the authentication mode

Enter the default ISP domain view

domain domain-name

Optional

By default, the local AAA scheme is applied.

If you specify to apply the local AAA scheme, you need to perform the configuration concerning local user as well.

If you specify to apply an existing scheme by providing the radius-scheme-name argument, you need to perform the following configuration as well:

l      Perform AAA&RADIUS configuration on the switch. (Refer to the AAA part for more.)

l      Configure the user name and password accordingly on the AAA server. (Refer to the user manual of AAA server.)

Specify the AAA scheme to be applied to the domain

scheme { local | none | radius-scheme radius-scheme-name [ local ] | hwtacacs-scheme hwtacacs-scheme-name [ local ] }

Quit to system view

quit

Create a local user (Enter local user view.)

local-user user-name

Required

No local user exists by default.

Set the authentication password for the local user

password { simple | cipher } password

Required

Specify the service type for AUX users

service-type terminal [ level level ]

Required

Quit to system view

quit

Enter AUX user interface view

user-interface aux 0

Configure to authenticate users locally or remotely

authentication-mode scheme [ command- authorization ]

Required

The specified AAA scheme determines whether to authenticate users locally or remotely.

By default, users logging in through the Console port (AUX user interface) are not authenticated.

Configure the Console port

Set the baud rate

speed speed-value

Optional

The default baud rate of the AUX port (also the Console port) is 9,600 bps.

Set the check mode

parity { even | none | odd }

Optional

By default, the check mode of a Console port is set to none, that is, no check bit.

Set the stop bits

stopbits { 1 | 1.5 | 2 }

Optional

The default stop bits of a Console port is 1.

Set the data bits

databits { 7 | 8 }

Optional

The default data bits of a Console port is 8.

Configure the command level available to users logging into the user interface

user privilege level level

Optional

By default, commands of level 3 are available to users logging into the AUX user interface.

Make terminal services available to the user interface

shell

Optional

By default, terminal services are available in all user interfaces.

Set the maximum number of lines the screen can contain

screen-length screen-length

Optional

By default, the screen can contain up to 24 lines.

You can use the screen-length 0 command to disable the function to display information in pages.

Set history command buffer size

history-command max-size value

Optional

The default history command buffer size is 10. That is, a history command buffer can store up to 10 commands by default.

Set the timeout time for the user interface

idle-timeout minutes [ seconds ]

Optional

The default timeout time of a user interface is 10 minutes.

With the timeout time being 10 minutes, the connection to a user interface is terminated if no operation is performed in the user interface within 10 minutes.

You can use the idle-timeout 0 command to disable the timeout function.

 

Note that if you configure to authenticate the users in the scheme mode, the command level available to users logging into a switch depends on the command level specified in the service-type terminal [ level level ] command.

2.6.2  Configuration Example

I. Network requirements

Assume the switch is configured to allow users to log in through Telnet, and the user level is set to the administrator level (level 3). Perform the following configurations for users logging in through the console port (AUX user interface).

l           Configure the local user name as “guest”.

l           Set the authentication password of the local user to 123456 (in plain text).

l           Set the service type of the local user to Terminal and the command level to 2.

l           Configure to authenticate the users in the scheme mode.

l           The baud rate of the Console port is 19,200 bps.

l           The screen can contain up to 30 lines.

l           The history command buffer can store up to 20 commands.

l           The timeout time of the AUX user interface is 6 minutes.

II. Network diagram

Figure 2-8 Network diagram for AUX user interface configuration (with the authentication mode being scheme)

III. Configuration procedure

# Enter system view.

<Sysname> system-view

# Create a local user named guest and enter local user view.

[Sysname] local-user guest

# Set the authentication password to 123456 (in plain text).

[Sysname-luser-guest] password simple 123456

# Set the service type to Terminal, Specify commands of level 2 are available to users logging into the AUX user interface.

[Sysname-luser-guest] service-type terminal level 2

[Sysname-luser-guest] quit

# Enter AUX user interface view.

[Sysname] user-interface aux 0

# Configure to authenticate users logging in through the Console port in the scheme mode.

[Sysname-ui-aux0] authentication-mode scheme

# Set the baud rate of the Console port to 19,200 bps.

[Sysname-ui-aux0] speed 19200

# Set the maximum number of lines the screen can contain to 30.

[Sysname-ui-aux0] screen-length 30

# Set the maximum number of commands the history command buffer can store to 20.

[Sysname-ui-aux0] history-command max-size 20

# Set the timeout time of the AUX user interface to 6 minutes.

[Sysname-ui-aux0] idle-timeout 6

After the above configuration, you need to modify the configuration of the terminal emulation utility running on the PC accordingly in the dialog box shown in Figure 2-4 to log into the switch successfully.

 


Chapter 3  Logging in through Telnet

3.1  Introduction

S3100 series Ethernet switches support Telnet. You can manage and maintain a switch remotely by Telnetting to the switch.

To log into a switch through Telnet, the corresponding configuration is required on both the switch and the Telnet terminal.

You can also log into a switch through SSH. SSH is a secure shell added to Telnet. Refer to the SSH Operation for related information.

Table 3-1 Requirements for Telnetting to a switch

Item

Requirement

Switch

The IP address is configured for the VLAN of the switch, and the route between the switch and the Telnet terminal is reachable. (Refer to the IP Address Configuration – IP Performance Configuration and Routing Protocol parts for more.)

The authentication mode and other settings are configured. Refer to Table 3-2 and Table 3-3.

Telnet terminal

Telnet is running.

The IP address of the VLAN of the switch is available.

 

&  Note:

Telnetting to a switch using IPv6 protocols is similar to Telnetting to a switch using IPv4 protocols. Refer to the IPv6 Management part for related information.

 

3.1.1  Common Configuration

Table 3-2 lists the common Telnet configuration.

Table 3-2 Common Telnet configuration

Configuration

Description

VTY user interface configuration

Configure the command level available to users logging into the VTY user interface

Optional

By default, commands of level 0 are available to users logging into a VTY user interface.

Configure the protocols the user interface supports

Optional

By default, Telnet and SSH protocol are supported.

Set the commands to be executed automatically after a user log into the user interface successfully

Optional

By default, no command is executed automatically after a user logs into the VTY user interface.

VTY terminal configuration

Make terminal services available

Optional

By default, terminal services are available in all user interfaces

Set the maximum number of lines the screen can contain

Optional

By default, the screen can contain up to 24 lines.

Set history command buffer size

Optional

By default, the history command buffer can contain up to 10 commands.

Set the timeout time of a user interface

Optional

The default timeout time is 10 minutes.

 

3.1.2  Telnet Configurations for Different Authentication Modes

 Table 3-3 lists Telnet configurations for different authentication modes.

Table 3-3 Telnet configurations for different authentication modes

Authentication mode

Telnet configuration

Description

None

Perform common configuration

Perform common Telnet configuration

Optional

Refer to Table 3-2.

Password

Configure the password

Configure the password for local authentication

Required

Perform common configuration

Perform common Telnet configuration

Optional

Refer to Table 3-2.

Scheme

Specify to perform local authentication or remote RADIUS authentication

AAA configuration specifies whether to perform local authentication or RADIUS authentication

Optional

Local authentication is performed by default.

Refer to the AAA part for more.

Configure user name and password

Configure user names and passwords for local/RADIUS users

Required

l      The user name and password of a local user are configured on the switch.

l      The user name and password of a remote user are configured on the RADIUS server. Refer to user manual of RADIUS server for more.

Manage VTY users

Set service type for VTY users

Required

Perform common configuration

Perform common Telnet configuration

Optional

Refer to Table 3-2.

 

&  Note:

To improve security and prevent attacks to the unused Sockets, TCP 23 and TCP 22, ports for Telnet and SSH services respectively, will be enabled or disabled after corresponding configurations.

l      If the authentication mode is none, TCP 23 will be enabled, and TCP 22 will be disabled.

l      If the authentication mode is password, and the corresponding password has been set, TCP 23 will be enabled, and TCP 22 will be disabled.

l      If the authentication mode is scheme, there are three scenarios: when the supported protocol is specified as telnet, TCP 23 will be enabled; when the supported protocol is specified as ssh, TCP 22 will be enabled; when the supported protocol is specified as all, both the TCP 23 and TCP 22 port will be enabled.

 

3.2  Telnet Configuration with Authentication Mode Being None

3.2.1  Configuration Procedure

Table 3-4 Telnet configuration with the authentication mode being none

Operation

Command

Description

Enter system view

system-view

Enter one or more VTY user interface views

user-interface vty first-number [ last-number ]

Configure not to authenticate users logging into VTY user interfaces

authentication-mode none

Required

By default, VTY users are authenticated after logging in.

Configure the command level available to users logging into VTY user interface

user privilege level level

Optional

By default, commands of level 0 are available to users logging into VTY user interfaces.

Configure the protocols to be supported by the VTY user interface

protocol inbound { all | ssh | telnet }

Optional

By default, both Telnet protocol and SSH protocol are supported.

Set the commands to be executed automatically after a user login to the user interface successfully

auto-execute command text

Optional

By default, no command is executed automatically after a user logs into the VTY user interface.

Make terminal services available

shell

Optional

By default, terminal services are available in all user interfaces.

Set the maximum number of lines the screen can contain

screen-length screen-length

Optional

By default, the screen can contain up to 24 lines.

You can use the screen-length 0 command to disable the function to display information in pages.

Set the history command buffer size

history-command max-size value

Optional

The default history command buffer size is 10. That is, a history command buffer can store up to 10 commands by default.

Set the timeout time of the VTY user interface

idle-timeout minutes [ seconds ]

Optional

The default timeout time of a user interface is 10 minutes.

With the timeout time being 10 minutes, the connection to a user interface is terminated if no operation is performed in the user interface within 10 minutes.

You can use the idle-timeout 0 command to disable the timeout function.

 

Note that if you configure not to authenticate the users, the command level available to users logging into a switch depends on the user privilege level level command

3.2.2  Configuration Example

I. Network requirements

Assume current user logins through the Console port, and the user level is set to the administrator level (level 3). Perform the following configurations for users logging in through VTY 0 using Telnet.

l           Do not authenticate the users.

l           Commands of level 2 are available to the users.

l           Telnet protocol is supported.

l           The screen can contain up to 30 lines.

l           The history command buffer can contain up to 20 commands.

l           The timeout time of VTY 0 is 6 minutes.

II. Network diagram

Figure 3-1 Network diagram for Telnet configuration (with the authentication mode being none)

III. Configuration procedure

# Enter system view.

<Sysname> system-view

# Enter VTY 0 user interface view.

[Sysname] user-interface vty 0

# Configure not to authenticate Telnet users logging into VTY 0.

[Sysname-ui-vty0] authentication-mode none

# Specify commands of level 2 are available to users logging into VTY 0.

[Sysname-ui-vty0] user privilege level 2

# Configure Telnet protocol is supported.

[Sysname-ui-vty0] protocol inbound telnet

# Set the maximum number of lines the screen can contain to 30.

[Sysname-ui-vty0] screen-length 30

# Set the maximum number of commands the history command buffer can store to 20.

[Sysname-ui-vty0] history-command max-size 20

# Set the timeout time to 6 minutes.

[Sysname-ui-vty0] idle-timeout 6

3.3  Telnet Configuration with Authentication Mode Being Password

3.3.1  Configuration Procedure

Table 3-5 Telnet configuration with the authentication mode being password

Operation

Command

Description

Enter system view

system-view

Enter one or more VTY user interface views

user-interface vty first-number [ last-number ]

Configure to authenticate users logging into VTY user interfaces using the local password

authentication-mode password

Required

Set the local password

set authentication password { cipher | simple } password

Required

Configure the command level available to users logging into the user interface

user privilege level level

Optional

By default, commands of level 0 are available to users logging into VTY user interface.

Configure the protocol to be supported by the user interface

protocol inbound { all | ssh | telnet }

Optional

By default, both Telnet protocol and SSH protocol are supported.

Set the commands to be executed automatically after a user login to the user interface successfully

auto-execute command text

Optional

By default, no command is executed automatically after a user logs into the VTY user interface.

Make terminal services available

shell

Optional

By default, terminal services are available in all user interfaces.

Set the maximum number of lines the screen can contain

screen-length screen-length

Optional

By default, the screen can contain up to 24 lines.

You can use the screen-length 0 command to disable the function to display information in pages.

Set the history command buffer size

history-command max-size value

Optional

The default history command buffer size is 10. That is, a history command buffer can store up to 10 commands by default.

Set the timeout time of the user interface

idle-timeout minutes [ seconds ]

Optional

The default timeout time of a user interface is 10 minutes.

With the timeout time being 10 minutes, the connection to a user interface is terminated if no operation is performed in the user interface within 10 minutes.

You can use the idle-timeout 0 command to disable the timeout function.

 

When the authentication mode is password, the command level available to users logging into the user interface is determined by the user privilege level command.

3.3.2  Configuration Example

I. Network requirements

Assume current user logins through the Console port and the user level is set to the administrator level (level 3). Perform the following configurations for users logging into VTY 0 using Telnet.

l           Authenticate users using the local password.

l           Set the local password to 123456 (in plain text).

l           Commands of level 2 are available to the users.

l           Telnet protocol is supported.

l           The screen can contain up to 30 lines.

l           The history command buffer can contain up to 20 commands.

l           The timeout time of VTY 0 is 6 minutes.

II. Network diagram

Figure 3-2 Network diagram for Telnet configuration (with the authentication mode being password)

III. Configuration procedure

# Enter system view.

<Sysname> system-view

# Enter VTY 0 user interface view.

[Sysname] user-interface vty 0

# Configure to authenticate users logging into VTY 0 using the password.

[Sysname-ui-vty0] authentication-mode password

# Set the local password to 123456 (in plain text).

[Sysname-ui-vty0] set authentication password simple 123456

# Specify commands of level 2 are available to users logging into VTY 0.

[Sysname-ui-vty0] user privilege level 2

# Configure Telnet protocol is supported.

[Sysname-ui-vty0] protocol inbound telnet

# Set the maximum number of lines the screen can contain to 30.

[Sysname-ui-vty0] screen-length 30

# Set the maximum number of commands the history command buffer can store to 20.

[Sysname-ui-vty0] history-command max-size 20

# Set the timeout time to 6 minutes.

[Sysname-ui-vty0] idle-timeout 6

3.4  Telnet Configuration with Authentication Mode Being Scheme

3.4.1  Configuration Procedure

Table 3-6 Telnet configuration with the authentication mode being scheme

Operation

Command

Description

Enter system view

system-view

Configure the authentication scheme

Enter the default ISP domain view

domain domain-name

Optional

By default, the local AAA scheme is applied. If you specify to apply the local AAA scheme, you need to perform the configuration concerning local user as well.

If you specify to apply an existing scheme by providing the radius-scheme-name argument, you need to perform the following configuration as well:

l      Perform AAA&RADIUS configuration on the switch. (Refer to the AAA part for more.)

l      Configure the user name and password accordingly on the AAA server. (Refer to the user manual of AAA server.)

Configure the AAA scheme to be applied to the domain

scheme { local | none | radius-scheme radius-scheme-name [ local ] | hwtacacs-scheme hwtacacs-scheme-name [ local ] }

Quit to system view

quit

Create a local user and enter local user view

local-user user-name

No local user exists by default.

Set the authentication password for the local user

password { simple | cipher } password

Required

Specify the service type for VTY users

service-type telnet [ level level ]

Required

Quit to system view

quit

Enter one or more VTY user interface views

user-interface vty first-number [ last-number ]

Configure to authenticate users locally or remotely

authentication-mode scheme [ command- authorization ]

Required

The specified AAA scheme determines whether to authenticate users locally or remotely.

Users are authenticated locally by default.

Configure the command level available to users logging into the user interface

user privilege level level

Optional

By default, commands of level 0 are available to users logging into the VTY user interfaces.

Configure the supported protocol

protocol inbound { all | ssh | telnet }

Optional

Both Telnet protocol and SSH protocol are supported by default.

Set the commands to be executed automatically after a user login to the user interface successfully

auto-execute command text

Optional

By default, no command is executed automatically after a user logs into the VTY user interface.

Make terminal services available

shell

Optional

Terminal services are available in all use interfaces by default.

Set the maximum number of lines the screen can contain

screen-length screen-length

Optional

By default, the screen can contain up to 24 lines.

You can use the screen-length 0 command to disable the function to display information in pages.

Set history command buffer size

history-command max-size value

Optional

The default history command buffer size is 10. That is, a history command buffer can store up to 10 commands by default.

Set the timeout time for the user interface

idle-timeout minutes [ seconds ]

Optional

The default timeout time of a user interface is 10 minutes.

With the timeout time being 10 minutes, the connection to a user interface is terminated if no operation is performed in the user interface within 10 minutes.

You can use the idle-timeout 0 command to disable the timeout function.

 

Note that if you configure to authenticate the users in the scheme mode, the command level available to the users logging into the switch depends on the user privilege level level command and the service-type { ftp | lan-access | { ssh | telnet | terminal }* [ level level ] } command, as listed in Table 3-7.

Table 3-7 Determine the command level when users logging into switches are authenticated in the scheme mode

Scenario

Command level

Authentication mode

User type

Command

authentication-mode scheme [ command-authorization ]

VTY users that are AAA&RADIUS authenticated or locally authenticated

The user privilege level level command is not executed, and the service-type command does not specify the available command level.

Level 0

The user privilege level level command is not executed, and the service-type command specifies the available command level.

Determined by the service-type command

The user privilege level level command is executed, and the service-type command does not specify the available command level.

Level 0

The user privilege level level command is executed, and the service-type command specifies the available command level.

Determined by the service-type command

VTY users that are authenticated in the RSA mode of SSH

The user privilege level level command is not executed, and the service-type command does not specify the available command level.

Level 0

The user privilege level level command is not executed, and the service-type command specifies the available command level.

The user privilege level level command is executed, and the service-type command does not specify the available command level.

Determined by the user privilege level level command

The user privilege level level command is executed, and the service-type command specifies the available command level.

VTY users that are authenticated in the password mode of SSH

The user privilege level level command is not executed, and the service-type command does not specify the available command level.

Level 0

The user privilege level level command is not executed, and the service-type command specifies the available command level.

Determined by the service-type command

The user privilege level level command is executed, and the service-type command does not specify the available command level.

Level 0

The user privilege level level command is executed, and the service-type command specifies the available command level.

Determined by the service-type command

 

&  Note:

Refer to AAA Operation and SSH Operation of this manual for information about AAA, RADIUS, and SSH.

 

3.4.2  Configuration Example

I. Network requirements

Assume current user logins through the Console port and the user level is set to the administrator level (level 3). Perform the following configurations for users logging into VTY 0 using Telnet.

l           Configure the local user name as “guest”.

l           Set the authentication password of the local user to 123456 (in plain text).

l           Set the service type of VTY users to Telnet and the command level to 2.

l           Configure to authenticate users logging into VTY 0 in scheme mode.

l           Only Telnet protocol is supported in VTY 0.

l           The screen can contain up to 30 lines.

l           The history command buffer can store up to 20 commands.

l           The timeout time of VTY 0 is 6 minutes.

II. Network diagram

Figure 3-3 Network diagram for Telnet configuration (with the authentication mode being scheme)

III. Configuration procedure

# Enter system view.

<Sysname> system-view

# Create a local user named “guest” and enter local user view.

[Sysname] local-user guest

# Set the authentication password of the local user to 123456 (in plain text).

[Sysname-luser-guest] password simple 123456

# Set the service type to Telnet, Specify commands of level 2 are available to users logging into VTY 0..

[Sysname-luser-guest] service-type telnet level 2

[Sysname-luser-guest] quit

# Enter VTY 0 user interface view.

[Sysname] user-interface vty 0

# Configure to authenticate users logging into VTY 0 in the scheme mode.

[Sysname-ui-vty0] authentication-mode scheme

# Configure Telnet protocol is supported.

[Sysname-ui-vty0] protocol inbound telnet

# Set the maximum number of lines the screen can contain to 30.

[Sysname-ui-vty0] screen-length 30

# Set the maximum number of commands the history command buffer can store to 20.

[Sysname-ui-vty0] history-command max-size 20

# Set the timeout time to 6 minutes.

[Sysname-ui-vty0] idle-timeout 6

3.5  Telnetting to a Switch

3.5.1  Telnetting to a Switch from a Terminal

1)         Assign an IP address to VLAN-interface 1 of the switch (VLAN 1 is the default VLAN of the switch).

l           Connect the serial port of your PC/terminal to the Console port of the switch, as shown in Figure 3-4

Figure 3-4 Diagram for establishing connection to a Console port

l           Launch a terminal emulation utility (such as Terminal in Windows 3.X or HyperTerminal in Windows 95/Windows 98/Windows NT/Windows 2000/Windows XP) on the PC terminal, with the baud rate set to 9,600 bps, data bits set to 8, parity check set to none, and flow control set to none.

l           Turn on the switch and press Enter as prompted. The prompt (such as <H3C>) appears, as shown in the following figure.

Figure 3-5 The terminal window

l           Perform the following operations in the terminal window to assign IP address 202.38.160.92/24 to VLAN–interface 1 of the switch.

<Sysname> system-view

[Sysname] interface Vlan-interface 1

[Sysname-Vlan-interface1] ip address 202.38.160.92 255.255.255.0

2)         Perform Telnet-related configuration on the switch. Refer to section 3.2  "Telnet Configuration with Authentication Mode Being None”, section 3.3  Telnet Configuration with Authentication Mode Being Password”, and section 3.4  Telnet Configuration with Authentication Mode Being Scheme” for more.

3)         Connect your PC/terminal and the Switch to an Ethernet, as shown in Figure 3-6. Make sure the port through which the switch is connected to the Ethernet belongs to VLAN 1 and the route between your PC and VLAN-interface 1 is reachable.

Figure 3-6 Network diagram for Telnet connection establishment

4)         Launch Telnet on your PC, with the IP address of VLAN–interface 1 of the switch as the parameter, as shown in Figure 3-7.

Figure 3-7 Launch Telnet

5)         If the password authentication mode is specified, enter the password when the Telnet window displays “Login authentication” and prompts for login password. The CLI prompt (such as <Sysname>) appears if the password is correct. If all VTY user interfaces of the switch are in use, you will fail to establish the connection and receive the message that says “All user interfaces are used, please try later!”. A H3C series Ethernet switch can accommodate up to five Telnet connections at same time.

6)         After successfully Telnetting to the switch, you can configure the switch or display the information about the switch by executing corresponding commands. You can also type ? at any time for help. Refer to the relevant parts in this manual for the information about the commands.

 

&  Note:

l      A Telnet connection is terminated if you delete or modify the IP address of the VLAN interface in the Telnet session.

l      By default, commands of level 0 are available to Telnet users authenticated by password. Refer to section 1.2 “Command Hierarchy/Command View” in CLI part for information about command hierarchy.

 

3.5.2  Telnetting to another Switch from the Current Switch

You can Telnet to another switch from the current switch. In this case, the current switch operates as the client, and the other operates as the server. If the interconnected Ethernet ports of the two switches are in the same LAN segment, make sure the IP addresses of the two management VLAN interfaces to which the two Ethernet ports belong to are of the same network segment, or the route between the two VLAN interfaces is available.

As shown in Figure 3-8, after Telnetting to a switch (labeled as Telnet client), you can Telnet to another switch (labeled as Telnet server) by executing the telnet command and then configure it.

Figure 3-8 Network diagram for Telnetting to another switch from the current switch

1)         Perform Telnet-related configuration on the switch operating as the Telnet server. Refer to section 3.2  "Telnet Configuration with Authentication Mode Being None”, section 3.3  Telnet Configuration with Authentication Mode Being Password”, and section 3.4  Telnet Configuration with Authentication Mode Being Scheme” for more.

2)         Telnet to the switch operating as the Telnet client.

3)         Execute the following command on the switch operating as the Telnet client:

<Sysname> telnet xxxx

Note that xxxx is the IP address or the host name of the switch operating as the Telnet server. You can use the ip host to assign a host name to a switch.

4)         After successful login, the CLI prompt (such as <Sysname>) appears. If all the VTY user interfaces of the switch are in use, you will fail to establish the connection and receive the message that says “All user interfaces are used, please try later!”.

5)         After successfully Telnetting to the switch, you can configure the switch or display the information about the switch by executing corresponding commands. You can also type ? at any time for help. Refer to the following chapters for the information about the commands.

 


Chapter 4  Logging in Using a Modem

4.1  Introduction

The administrator can log into the Console port of a remote switch using a modem through public switched telephone network (PSTN) if the remote switch is connected to the PSTN through a modem to configure and maintain the switch remotely. When a network operates improperly or is inaccessible, you can manage switches in the network remotely in this way.

To log into a switch in this way, you need to configure the administrator side and the switch properly, as listed in the following table.

Table 4-1 Requirements for logging into a switch using a modem

Item

Requirement

Administrator side

The PC can communicate with the modem connected to it.

The modem is properly connected to PSTN.

The telephone number of the switch side is available.

Switch side

The modem is connected to the Console port of the switch properly.

The modem is properly configured.

The modem is properly connected to PSTN and a telephone set.

The authentication mode and other related settings are configured on the switch. Refer to Table 2-3.

 

4.2  Configuration on the Switch Side

4.2.1  Modem Configuration

Perform the following configuration on the modem directly connected to the switch:

AT&F     ----------------------- Restore the factory settings

ATS0=1   ----------------------- Configure to answer automatically after the first ring

AT&D     ----------------------- Ignore DTR signal

AT&K0        ----------------------- Disable flow control

AT&R1        ----------------------- Ignore RTS signal

AT&S0        ----------------------- Set DSR to high level by force

ATEQ1&W  ----------------------- Disable the Modem from returning command response and the result, save the changes

You can verify your configuration by executing the AT&V command.

 

&  Note:

The configuration commands and the output of different modems may differ. Refer to the user manual of the modem when performing the above configuration.

 

4.2.2  Switch Configuration

 

&  Note:

After logging into a switch through its Console port by using a modem, you will enter the AUX user interface. The corresponding configuration on the switch is the same as those when logging into the switch locally through its Console port except that:

l      When you log in through the Console port using a modem, the baud rate of the Console port is usually set to a value lower than the transmission speed of the modem. Otherwise, packets may get lost.

l      Other settings of the Console port, such as the check mode, the stop bits, and the data bits, remain the default.

 

The configuration on the switch depends on the authentication mode the user is in. Refer to Table 2-3 for the information about authentication mode configuration.

I. Configuration on switch when the authentication mode is none

Refer to section 2.4  Console Port Login Configuration with Authentication Mode Being None”.

II. Configuration on switch when the authentication mode is password

Refer to section 2.5  Console Port Login Configuration with Authentication Mode Being Password”.

III. Configuration on switch when the authentication mode is scheme

Refer to section 2.6  Console Port Login Configuration with Authentication Mode Being Scheme”.

4.3  Modem Connection Establishment

1)         Before using Modem to log in the switch, perform corresponding configuration for different authentication modes on the switch. Refer to section 2.4  "Console Port Login Configuration with Authentication Mode Being None”, section 2.5  Console Port Login Configuration with Authentication Mode Being Password”, and section 2.6  Console Port Login Configuration with Authentication Mode Being Scheme” for more.

2)         Perform the following configuration to the modem directly connected to the switch. Refer to section 4.2.1  Modem Configuration” for related configuration.

3)         Connect your PC, the modems, and the switch, as shown in Figure 4-1. Make sure the modems are properly connected to telephone lines.

Figure 4-1 Establish the connection by using modems

4)         Launch a terminal emulation utility on the PC and set the telephone number to call the modem directly connected to the switch, as shown in Figure 4-2 through Figure 4-4. Note that you need to set the telephone number to that of the modem directly connected to the switch.

Figure 4-2 Create a connection

Figure 4-3 Set the telephone number

Figure 4-4 Call the modem

5)         If the password authentication mode is specified, enter the password when prompted. If the password is correct, the prompt (such as <Sysname>) appears. You can then configure or manage the switch. You can also enter the character ? at anytime for help. Refer to the related parts in this manual for information about the configuration commands.

 

&  Note:

If you perform no AUX user-related configuration on the switch, the commands of level 3 are available to modem users. Refer to the CLI part for information about command level.

 


Chapter 5  Logging in through the Web-based Network Management System

5.1  Introduction

An S3100 Ethernet switch has a Web server built in. It enables you to log into an S3100 Ethernet switch through a Web browser and then manage and maintain the switch intuitively by interacting with the built-in Web server.

To log into an S3100 Ethernet switch through the built-in Web-based network management system, you need to perform the related configuration on both the switch and the PC operating as the network management terminal.

Table 5-1 Requirements for logging into a switch through the Web-based network management system

Item

Requirement

Switch

The VLAN interface of the switch is assigned an IP address, and the route between the switch and the Web network management terminal is reachable. (Refer to the IP Address Configuration – IP Performance Configuration and Routing Protocol parts for related information.)

The user name and password for logging into the Web-based network management system are configured.

PC operating as the network management terminal

IE is available.

The IP address of the VLAN interface of the switch, the user name, and the password are available.

 

5.2  Establishing an HTTP Connection

1)         Assign an IP address to VLAN-interface 1 of the switch (VLAN 1 is the default VLAN of the switch). See section 3.5.1  "Telnetting to a Switch from a Terminal" for related information.

2)         Configure the user name and the password on the switch for the Web network management user to log in.

# Create a Web user account, setting both the user name and the password to “admin” and the user level to 3.

<Sysname> system-view

[Sysname] local-user admin

[Sysname-luser-admin] service-type telnet level 3

[Sysname-luser-admin] password simple admin

3)         Establish an HTTP connection between your PC and the switch, as shown in Figure 5-1.

Figure 5-1 Establish an HTTP connection between your PC and the switch

4)         Log into the switch through IE. Launch IE on the Web-based network management terminal (your PC) and enter the IP address of the management VLAN interface of the switch in the address bar. (Make sure the route between the Web-based network management terminal and the switch is available.)

5)         When the login authentication interface (as shown in Figure 5-2) appears, enter the user name and the password configured in step 2 and click <Login> to bring up the main page of the Web-based network management system.

Figure 5-2 The login page of the Web-based network management system

5.3  Configuring the Login Banner

5.3.1  Configuration Procedure

If a login banner is configured with the header command, when a user logs in through Web, the banner page is displayed before the user login authentication page. The contents of the banner page are the login banner information configured with the header command. Then, by clicking <Continue> on the banner page, the user can enter the user login authentication page, and enter the main page of the Web-based network management system after passing the authentication. If no login banner is configured by the header command, a user logging in through Web directly enters the user login authentication page.

Table 5-2 Configure the login banner

Operation

Command

Description

Enter system view

system-view

Configure the banner to be displayed when a user logs in through Web

header login text

Required

By default, no login banner is configured.

 

5.3.2  Configuration Example

I. Network requirements

l           A user logs in to the switch through Web.

l           The banner page is desired when a user logs into the switch.

II. Network diagram

Figure 5-3 Network diagram for login banner configuration

III. Configuration Procedure

# Enter system view.

<Sysname> system-view

# Configure the banner "Welcome" to be displayed when a user logs into the switch through Web.

[Sysname] header login %Welcome%

Assume that a route is available between the user terminal (the PC) and the switch. After the above-mentioned configuration, if you enter the IP address of the switch in the address bar of the browser running on the user terminal and press <Enter>, the browser will display the banner page, as shown in Figure 5-4.

Figure 5-4 Banner page displayed when a user logs in to the switch through Web

Click <Continue> to enter user login authentication page. You will enter the main page of the Web-based network management system if the authentication succeeds.

5.4  Enabling/Disabling the WEB Server

Table 5-3 Enable/Disable the WEB Server

Operation

Command

Description

Enter system view

system-view

Enable the Web server

ip http shutdown

Required

By default, the Web server is enabled.

Disable the Web server

undo ip http shutdown

Required

 

&  Note:

To improve security and prevent attack to the unused Sockets, TCP 80 port (which is for HTTP service) is enabled/disabled after the corresponding configuration.

l      Enabling the Web server (by using the undo ip http shutdown command) opens TCP 80 port.

l      Disabling the Web server (by using the ip http shutdown command) closes TCP 80 port.

 


Chapter 6  Logging in through NMS

6.1  Introduction

You can also log into a switch through a network management station (NMS), and then configure and manage the switch through the agent module on the switch. Simple network management protocol (SNMP) is applied between the NMS and the agent. Refer to the SNMP-RMON part for related information.

To log into a switch through an NMS, you need to perform related configuration on both the NMS and the switch.

Table 6-1 Requirements for logging into a switch through an NMS

Item

Requirement

Switch

The IP address of the VLAN interface of the switch is configured. The route between the NMS and the switch is reachable. (Refer to the IP Address Configuration – IP Performance Configuration and Routing Protocol parts for related information.)

The basic SNMP functions are configured. (Refer to the SNMP-RMON part for related information.)

NMS

The NMS is properly configured. (Refer to the user manual of your NMS for related information.)

 

6.2  Connection Establishment Using NMS

Figure 6-1 Network diagram for logging in through an NMS

 


Chapter 7  User Control

 

&  Note:

Refer to the ACL part for information about ACL.

 

7.1  Introduction

A switch provides ways to control different types of login users, as listed in Table 7-1.

Table 7-1 Ways to control different types of login users

Login mode

Control method

Implementation

Related section

Telnet

By source IP address

Through basic ACL

Section 7.2.2  “”Controlling Telnet Users by Source IP Addresses.

By source and destination IP address

Through advanced ACL

Section 7.2.3  Controlling Telnet Users by Source and Destination IP Addresses”.

By source MAC address

Through Layer 2 ACL

Section 7.2.4  Controlling Telnet Users by Source MAC Addresses

SNMP

By source IP addresses

Through basic ACL

Section 7.3  Controlling Network Management Users by Source IP Addresses”.

WEB

By source IP addresses

Through basic ACL

Section 7.4  Controlling Web Users by Source IP Address

Disconnect Web users by force

By executing commands in CLI

Section 7.4.3  Disconnecting a Web User by Force

 

7.2  Controlling Telnet Users

7.2.1  Prerequisites

The controlling policy against Telnet users is determined, including the source IP addresses, destination IP addresses and source MAC addresses to be controlled and the controlling actions (permitting or denying).

7.2.2  Controlling Telnet Users by Source IP Addresses

Controlling Telnet users by source IP addresses is achieved by applying basic ACLs, which are numbered from 2000 to 2999.

Table 7-2 Control Telnet users by source IP addresses

Operation

Command

Description

Enter system view

system-view

Create a basic ACL or enter basic ACL view

acl number acl-number [ match-order { config | auto } ]

As for the acl number command, the config keyword is specified by default.

Define rules for the ACL

rule [ rule-id ] { deny | permit } [ rule-string ]

Required

Quit to system view

quit

Enter user interface view

user-interface [ type ] first-number [ last-number ]

Apply the ACL to control Telnet users by source IP addresses

acl acl-number { inbound | outbound }

Required

The inbound keyword specifies to filter the users trying to Telnet to the current switch.

The outbound keyword specifies to filter users trying to Telnet to other switches from the current switch.

 

7.2.3  Controlling Telnet Users by Source and Destination IP Addresses

Controlling Telnet users by source and destination IP addresses is achieved by applying advanced ACLs, which are numbered from 3000 to 3999.

Table 7-3 Control Telnet users by source and destination IP addresses

Operation

Command

Description

Enter system view

system-view

Create an advanced ACL or enter advanced ACL view

acl number acl-number [ match-order { config | auto } ]

As for the acl number command, the config keyword is specified by default.

Define rules for the ACL

rule [ rule-id ] { deny | permit } protocol [ rule-string ]

Required

You can define rules as needed to filter by specific source and destination IP addresses.

Quit to system view

quit

Enter user interface view

user-interface [ type ] first-number [ last-number ]

Apply the ACL to control Telnet users by specified source and destination IP addresses

acl acl-number { inbound | outbound }

Required

The inbound keyword specifies to filter the users trying to Telnet to the current switch.

The outbound keyword specifies to filter users trying to Telnet to other switches from the current switch.

 

7.2.4  Controlling Telnet Users by Source MAC Addresses

Controlling Telnet users by source MAC addresses is achieved by applying Layer 2 ACLs, which are numbered from 4000 to 4999.

Table 7-4 Control Telnet users by source MAC addresses

Operation

Command

Description

Enter system view

system-view

Create or enter Layer 2 ACL view

acl number acl-number

Define rules for the ACL

rule [ rule-id ] { deny | permit } [ rule-string ]

Required

You can define rules as needed to filter by specific source MAC addresses.

Quit to system view

quit

Enter user interface view

user-interface [ type ] first-number [ last-number ]

Apply the ACL to control Telnet users by specified source MAC addresses

acl acl-number inbound

Required

By default, no ACL is applied for Telnet users.

 

7.2.5  Configuration Example

I. Network requirements

Only the Telnet users sourced from the IP address of 10.110.100.52 are permitted to access the switch.

II. Network diagram

Figure 7-1 Network diagram for controlling Telnet users using ACLs

III. Configuration procedure

# Define a basic ACL.

<Sysname> system-view

[Sysname] acl number 2000

[Sysname-acl-basic-2000] rule 1 permit source 10.110.100.52 0

[Sysname-acl-basic-2000] quit

# Apply the ACL.

[Sysname] user-interface vty 0 4

[Sysname-ui-vty0-4] acl 2000 inbound

7.3  Controlling Network Management Users by Source IP Addresses

You can manage an S3100 Ethernet switch through network management software. Network management users can access switches through SNMP.

You need to perform the following two operations to control network management users by source IP addresses.

l           Defining an ACL

l           Applying the ACL to control users accessing the switch through SNMP

7.3.1  Prerequisites

The controlling policy against network management users is determined, including the source IP addresses to be controlled and the controlling actions (permitting or denying).

7.3.2  Controlling Network Management Users by Source IP Addresses

Controlling network management users by source IP addresses is achieved by applying basic ACLs, which are numbered from 2000 to 2999.

Follow these steps to control network management users by source IP addresses:

To do…

Use the command…

Remarks

Enter system view

system-view

Create a basic ACL or enter basic ACL view

acl number acl-number [ match-order { auto | config } ]

As for the acl number command, the config keyword is specified by default.

Define rules for the ACL

rule [ rule-id ] { deny | permit } [ rule-string ]

Required

Quit to system view

quit

Apply the ACL while configuring the SNMP community name

snmp-agent community { read | write } community-name [ acl acl-number | mib-view view-name ]*

Required

According to the SNMP version and configuration customs of NMS users, you can reference an ACL when configuring community name, group name or username. For the detailed configuration, refer to SNMP-RMON for more.

Apply the ACL while configuring the SNMP group name

snmp-agent group { v1 | v2c } group-name [ read-view read-view ] [ write-view write-view ] [ notify-view notify-view ] [ acl acl-number ]

snmp-agent group v3 group-name [ authentication | privacy ] [ read-view read-view ] [ write-view write-view ] [ notify-view notify-view ] [ acl acl-number ]

Apply the ACL while configuring the SNMP user name

snmp-agent usm-user { v1 | v2c } user-name group-name [ acl acl-number ]

snmp-agent usm-user v3 user-name group-name  [ [ cipher ] authentication-mode { md5 | sha } auth-password [ privacy-mode { des56 | aes128 } priv-password ] ] [ acl acl-number ]

 

7.3.3  Configuration Example

I. Network requirements

Only SNMP users sourced from the IP addresses of 10.110.100.52 are permitted to log into the switch.

II. Network diagram

Figure 7-2 Network diagram for controlling SNMP users using ACLs

III. Configuration procedure

# Define a basic ACL.

<Sysname> system-view

[Sysname] acl number 2000

[Sysname-acl-basic-2000] rule 1 permit source 10.110.100.52 0

[Sysname-acl-basic-2000] quit

# Apply the ACL to only permit SNMP users sourced from the IP addresses of 10.110.100.52 to access the switch.

[Sysname] snmp-agent community read aaa acl 2000

[Sysname] snmp-agent group v2c groupa acl 2000

[Sysname] snmp-agent usm-user v2c usera groupa acl 2000

7.4  Controlling Web Users by Source IP Address

You can manage an S3100 Ethernet switch remotely through Web. Web users can access a switch through HTTP connections.

You need to perform the following two operations to control Web users by source IP addresses.

l           Defining an ACL

l           Applying the ACL to control Web users

7.4.1  Prerequisites

The controlling policy against Web users is determined, including the source IP addresses to be controlled and the controlling actions (permitting or denying).

7.4.2  Controlling Web Users by Source IP Addresses

Controlling Web users by source IP addresses is achieved by applying basic ACLs, which are numbered from 2000 to 2999.

Table 7-5 Control Web users by source IP addresses

Operation

Command

Description

Enter system view

system-view

Create a basic ACL or enter basic ACL view

acl number acl-number [ match-order { config | auto } ]

As for the acl number command, the config keyword is specified by default.

Define rules for the ACL

rule [ rule-id ] { deny | permit } [ rule-string ]

Required

Quit to system view

quit

Apply the ACL to control Web users

ip http acl acl-number

Optional

By default, no ACL is applied for Web users.

 

7.4.3  Disconnecting a Web User by Force

The administrator can disconnect a Web user by force using the related commands.

Table 7-6 Disconnect a Web user by force

Operation

Command

Description

Disconnect a Web user by force

free web-users { all | user-id user-id | user-name user-name }

Required

Execute this command in user view.

 

7.4.4  Configuration Example

I. Network requirements

Only the Web users sourced from the IP address of 10.110.100.52 are permitted to access the switch.

II. Network diagram

Figure 7-3 Network diagram for controlling Web users using ACLs

III. Configuration procedure

# Define a basic ACL.

<Sysname> system-view

[Sysname] acl number 2030

[Sysname-acl-basic-2030] rule 1 permit source 10.110.100.52 0

[Sysname-acl-basic-2030] quit

# Apply ACL 2030 to only permit the Web users sourced from the IP address of 10.110.100.52 to access the switch.

[Sysname] ip http acl 2030

 

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