interface interface-type interface-number: Specifies a port by its type and number. If the specified port is not enabled with MAC authentication, this command displays only global MAC authentication information.

Usage guidelines

If you do not specify any parameters, this command displays all MAC authentication information including the global settings, port-specific settings, MAC authentication statistics, and online user statistics.

Examples

# Display all MAC authentication settings and statistics.

<Sysname> display mac-authentication

Global MAC authentication parameters:

MAC authentication : Enabled

Authentication method : PAP

Username format : MAC address in lowercase(xx-xx-xx-xx-xx-xx)

Username : mac

Password : Not configured

Offline detect period : 300 s

Quiet period : 60 s

Server timeout : 100 s

Reauth period : 3600 s

User aging period for critical VLAN : 1000 s

User aging period for guest VLAN : 1000 s

Authentication domain : Not configured, use default domain

Online MAC-auth wired users : 1

Silent MAC users:

MAC address VLAN ID From port Port index

Ten-GigabitEthernet0/0/6 is link-up

MAC authentication : Enabled

Carry User-IP : Disabled

Authentication domain : Not configured

Auth-delay timer : Enabled

Auth-delay period : 60 s

Periodic reauth : Enabled

Reauth period : 120 s

Re-auth server-unreachable : Logoff

Guest VLAN : 100

Guest VLAN auth-period : 150 s

Critical VLAN : Not configured

Critical voice VLAN : Disabled

Host mode : Multiple VLAN

Offline detection : Enabled

Authentication order : Parallel

User aging : Enabled

Server-recovery online-user-sync : Enabled

Auto-tag feature : Disabled

VLAN tag configuration ignoring : Disabled

Max online users : 4294967295

Authentication attempts : successful 2, failed 3

Current online users : 1

MAC address Auth state

0001-0000-0000 Authenticated

0001-0000-0001 Unauthenticated

Table 1 Command output

Field	Description
MAC authentication	Whether MAC authentication is enabled globally.
Authentication method	Authentication method for MAC authentication: CHAP or PAP.
Username format	User account type: MAC-based or shared. · If MAC-based accounts are used, this field displays the format settings for the username. For example, MAC address in lowercase(xx-xx-xx-xx-xx-xx) indicates that the MAC address is in hexadecimal notation and is separated into six sections by hyphen (-). The letters in the MAC address are in lower case. · If a shared account is used, this field displays Fixed account.
Username	Username for MAC authentication. · If MAC-based accounts are used, this field displays mac. · If a shared account is used, this field displays the username of the shared account for MAC authentication users. By default, the username is mac.
Password	Password for MAC authentication. · If the MAC address of each user is used as the password or if a shared account is used but no password is configured, this field displays Not configured. · If a password is configured, this field displays a string of asterisks (******).
Offline detect period	Offline detect timer.
Quiet period	Quiet timer.
Server timeout	Server timeout timer.
Reauth period	Periodic MAC reauthentication timer in seconds.
User aging period for critical VLAN	This field is not supported in the current software version. Aging timer in seconds for users in critical VLANs.
User aging period for guest VLAN	This field is not supported in the current software version. Aging timer in seconds for users in guest VLANs.
Authentication domain	MAC authentication domain specified in system view. If no authentication domain is specified in system view, this field displays Not configured, use default domain.
Online MAC-auth wired users	Number of wired online MAC authentication users, including users that have passed MAC authentication and users that are performing MAC authentication.
Online MAC-auth wireless users	Number of wireless online MAC authentication users, including users that have passed MAC authentication and users that are performing MAC authentication.
Silent MAC users	Information about silent MAC addresses, including MAC addresses that have failed MAC authentication and MAC addresses that have been assigned the blackhole MAC attribute from the RADIUS server.
MAC address	Silent MAC address.
VLAN ID	ID of the VLAN to which the silent MAC address belongs.
From port	Name of the port that marks the MAC address as a silent MAC address.
Port index	Index of the port that marks the MAC address as a silent MAC address.
Ten-GigabitEthernet0/0/6 is link-up	Status of the link on Ten-GigabitEthernet 0/0/6. In this example, the link is up.
MAC authentication	Status of MAC authentication on the port: · Enabled. · Disabled.
Carry User-IP	Whether user IP addresses are included in MAC authentication requests.
Authentication domain	MAC authentication domain specified for the port.
Auth-delay timer	Whether MAC authentication delay is enabled on the port.
Auth-delay period	MAC authentication delay timer.
Periodic reauth	Whether periodic MAC reauthentication is enabled on the port.
Reauth period	Periodic MAC reauthentication timer on the port.
Re-auth server-unreachable	Action taken when no server is reachable for MAC reauthentication: · Logoff—Logs off online MAC authentication users. · Online—Keeps MAC authenticated users online.
Guest VLAN	This field is not supported in the current software version. MAC authentication guest VLAN configured on the port. If no MAC authentication guest VLAN is configured, this field displays Not configured.
Guest VLAN auth-period	This field is not supported in the current software version. Authentication interval for users in the MAC authentication guest VLAN on the port.
Critical VLAN	This field is not supported in the current software version. MAC authentication critical VLAN configured on the port. If no MAC authentication critical VLAN is configured, this field displays Not configured.
Critical voice VLAN	This field is not supported in the current software version. Whether the MAC authentication critical voice VLAN feature is enabled on the port.
Host mode	· If multi-VLAN mode is disabled, this field displays Single VLAN. · If multi-VLAN mode is enabled, this field displays Multiple VLAN.
Offline detection	Status of MAC authentication offline detection: · Enabled. · Disabled.
Authentication order	If parallel MAC authentication and 802.1X authentication is disabled, this field displays Default. If parallel MAC authentication and 802.1X authentication is enabled, this field displays Parallel.
User aging	Status of the aging feature for unauthenticated MAC authentication users on a port: · Enabled. · Disabled.
Server-recovery online-user-sync	Status of online user synchronization for MAC authentication on the port: · Enabled. · Disabled.
Auto-tag feature	This field is not supported in the current software version. Status of the authorization VLAN auto-tag feature: · Enabled. · Disabled.
VLAN tag configuration ignoring	This field is not supported in the current software version. Status of the ignore-config mode: · Enabled. · Disabled.
Max online users	Maximum number of concurrent online users allowed on the port.
Authentication attempts: successful 1, failed 0	MAC authentication statistics, including the number of successful and unsuccessful authentication attempts.
MAC address	MAC address of the online user.
Auth state	User status: · Authenticated—The user has passed MAC authentication. · Unauthenticated—The user has not passed MAC authentication.

display mac-authentication connection

Use display mac-authentication connection to display information about online MAC authentication users.

Syntax

display mac-authentication connection [ open ] [ interface interface-type interface-number | slot slot-number | user-mac mac-address | user-name user-name ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

open: Displays information only about MAC authentication users that use nonexistent usernames or incorrect passwords for network access in open authentication mode. If you do not specify this keyword, the command displays information about all online MAC authentication users.

interface interface-type interface-number: Specifies a port by its type and number. If you do not specify a port, this command displays information about online MAC authentication users for all ports.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays information about online MAC authentication users for all cards.

user-mac mac-address: Specifies an online MAC authentication user by its MAC address. The mac-address argument represents the MAC address of the user, in the form of H-H-H. If you do not specify an online MAC authentication user, this command displays all online MAC authentication user information.

user-name user-name: Specifies an online MAC authentication user by its username. The user name is a case-sensitive string of 1 to 55 characters, and it can include the domain name. If you do not specify an online MAC authentication user, this command displays all online MAC authentication user information.

Examples

# Display information about all online MAC authentication users.

<Sysname> display mac-authentication connection

Total connections: 2

Slot ID: 0

User MAC address: 0015-e9a6-7cfe

Access interface: Ten-GigabitEthernet0/0/6

Username: ias

User access state: Successful

Authentication domain: macusers

IPv4 address: 192.168.1.1

IPv6 address: 2000:0:0:0:1:2345:6789:abcd

Initial VLAN: 1

Authorization untagged VLAN: 100

Authorization tagged VLAN: N/A

Authorization ACL ID: 3001

Authorization user profile: N/A

Authorization CAR:

Average input rate: 102400 bps

Peak input rate: 204800 bps

Average output rate: 102400 bps

Peak output rate: 204800 bps

Authorization URL: N/A

Termination action: Radius-request

Session timeout period: 2 sec

Offline detection: 100 sec (server-assigned)

Online from: 2020/01/02 13:14:15

Online duration: 0h 2m 15s

Table 2 Command output

Field	Description
Total connections	Total number of online MAC authentication users.
User MAC address	MAC address of the user.
Access interface	Interface through which the user accesses the device.
User access state	Access state of the user: · Successful—The user passes MAC authentication and comes online. · Open—The user uses a nonexistent username or an incorrect password to come online in open authentication mode.
Authentication domain	MAC authentication domain to which the user belongs.
IPv4 address	IPv4 address of the user. If no user IPv4 address is available, this field is not displayed.
IPv6 address	IPv6 address of the user. If no user IPv6 address is available, this field is not displayed.
Initial VLAN	VLAN that holds the user before MAC authentication.
Authorization untagged VLAN	Untagged VLAN authorized to the user.
Authorization tagged VLAN	Tagged VLAN authorized to the user.
Authorization ACL ID	ACL authorized to the user. If the ACL authorization fails, this field displays (Not effective) after the ACL ID.
Authorization user profile	User profile authorized to the user.
Authorization CAR	Authorization CAR attributes assigned by the server. · Average input rate—Average rate of inbound traffic in bps. · Peak input rate—Peak rate of inbound traffic in bps. · Average output rate—Average rate of outbound traffic in bps. · Peak output rate—Peak rate of outbound traffic in bps. If the device fails to assign the CAR attributes to the user, the Authorization CAR field displays (NOT effective). If the server does not assign the peak rates, the peak rates by default are the same as the assigned average rates. In the current software version, the device does not support exclusive assignment of peak rates from the server. If no authorization CAR attributes are assigned, this field displays N/A.
Authorization URL	Redirect URL authorized to the user.
Termination action	Action attribute assigned by the server to terminate the user session: · Default—Logs off the online authenticated user when the server-assigned session timeout timer expires. This attribute does not take effect when periodic MAC reauthentication is enabled and the periodic reauthentication timer is shorter than the server-assigned session timeout timer. · Radius-request—Reauthenticates the online user when the server-assigned session timeout timer expires, regardless of whether the periodic MAC reauthentication feature is enabled or not. If the device performs local authentication, this field displays N/A.
Session timeout period	Session timeout timer assigned by the server.
Offline detection	Offline detection setting for the user: · Ignore (command-configured)—The device does not perform offline detection for the user. The setting is configured from the CLI. · timer (command-configured)—Represents the offline detect timer. The timer is configured from the CLI, · Ignore (server-assigned)—The device does not perform offline detection for the user. The setting is assigned by a RADIUS server. · timer (server-assigned)—Represents the offline detect timer. The timer is assigned by a RADIUS server.
Online from	Time from which the MAC authentication user came online.
Online duration	Online duration of the MAC authentication user.

mac-authentication

Use mac-authentication to enable MAC authentication globally or on a port.

Use undo mac-authentication to disable MAC authentication globally or on a port.

Syntax

mac-authentication

undo mac-authentication

Default

MAC authentication is disabled globally or on any port.

Views

System view

Layer 2 Ethernet interface view

Predefined user roles

network-admin

Usage guidelines

To use MAC authentication on a port, you must enable the feature both globally and on the port.

Examples

# Enable MAC authentication globally.

<Sysname> system-view

[Sysname] mac-authentication

# Enable MAC authentication on Ten-GigabitEthernet 0/0/6.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 0/0/6

[Sysname-Ten-GigabitEthernet0/0/6] mac-authentication

Related commands

display mac-authentication

mac-authentication access-user log enable

Use mac-authentication access-user log enable to enable MAC authentication user logging.

Use undo mac-authentication access-user log enable to disable MAC authentication user logging.

Syntax

mac-authentication access-user log enable [ failed-login | logoff | successful-login ] *

undo mac-authentication access-user log enable [ failed-login | logoff | successful-login ] *

Default

MAC authentication user logging is disabled.

Views

System view

Predefined user roles

network-admin

Parameters

failed-login: Logs MAC authentication user login failures.

logoff: Logs MAC authentication user logoffs.

successful-login: Logs successful MAC authentication user logins.

Usage guidelines

To prevent excessive MAC authentication user log entries, use this feature only if you need to analyze abnormal MAC authentication user logins or logouts.

If you do not specify any parameters, this command enables all types of MAC authentication user logs.

Examples

# Enable logging MAC authentication user login failures.

<Sysname> system-view

[Sysname] mac-authentication access-user log enable failed-login

Related commands

info-center source maca logfile deny (System Management Command Reference)

mac-authentication authentication-method

Use mac-authentication authentication-method to specify an authentication method for MAC authentication.

Use undo mac-authentication authentication-method to restore the default.

Syntax

mac-authentication authentication-method { chap | pap }

undo mac-authentication authentication-method

Default

The device uses PAP for MAC authentication.

Views

System view

Predefined user roles

network-admin

Parameters

chap: Configures the access device to use the Challenge Handshake Authentication Protocol (CHAP) to communicate with the RADIUS server.

pap: Configures the access device to use the Password Authentication Protocol (PAP) to communicate with the RADIUS server.

Usage guidelines

RADIUS-based MAC authentication supports the following authentication methods:

· PAP—Transports usernames and passwords in plain text. The authentication method applies to scenarios that do not require high security.

· CHAP—Transports usernames in plain text and passwords in encrypted form over the network. CHAP is more secure than PAP.

Examples

# Configure the device to use CHAP for MAC authentication.

<Sysname> system-view

[Sysname] mac-authentication authentication-method chap

Related commands

display mac-authentication

mac-authentication carry user-ip

Use mac-authentication carry user-ip to include user IP addresses in MAC authentication requests sent to an IMC server.

Use undo mac-authentication carry user-ip to restore the default.

Syntax

mac-authentication carry user-ip [ exclude-ip acl acl-number ]

undo mac-authentication carry user-ip

Default

A MAC authentication request does not include the user IP address.

Views

Layer 2 Ethernet interface view

Predefined user roles

network-admin

Parameters

exclude-ip: Specifies an ACL-based filter to identify source IP addresses that can or cannot trigger MAC authentication.

acl acl-number: Specifies a basic ACL. The value range for the acl-number argument is 2000 to 2999.

Usage guidelines

IMPORTANT:

This command can only operate in conjunction with an IMC server.

To avoid IP conflicts that result from changes to static IP addresses, use this command on a port that has MAC authentication users with static IP addresses.

This command adds user IP addresses to the MAC authentication requests sent to the authentication server. When MAC authentication is triggered for a user, the device checks the user's IP address for invalidity.

· If the IP address is valid, the device sends a MAC authentication request with the IP address included.

· If the IP address is not a valid host IP address or the triggering packet does not contain an IP address, the device does not initiate MAC authentication.

· If the packet is a DHCP packet with a source IP address of 0.0.0.0, the device sends a MAC authentication request without including the IP address. In this case, the IMC server does not examine the user IP address when it performs authentication.

Upon receipt of the authentication request that includes a user's IP address, the IMC server compares the user's IP and MAC addresses with its IP-MAC mappings.

· If an exact match is found or if no match is found, the user passes MAC authentication. In the latter case, the server creates an IP-MAC mapping for the user.

· If a mapping is found for the MAC address but the IP addresses do not match, the user fails the MAC authentication.

If the user host is configured with IPv6, the device might receive packets that contain an IPv6 link-local address, which starts with fe80. MAC authentication failure will occur if this address is used in MAC authentication. To avoid MAC authentication failure, configure a basic ACL to exclude the IPv6 IP addresses that start with fe80.

When you configure the ACL, follow these guidelines:

· Use permit rules to identify source IP addresses that are valid for MAC authentication. Use deny rules to identify source IP addresses that cannot trigger MAC authentication.

· In the rules, only the action keyword (permit or deny) and the source IP match criterion can take effect.

· As a best practice, configure a deny rule to exclude the IPv6 IP addresses that start with fe80 from triggering MAC authentication.

· If you configure permit rules, add a deny all rule at the bottom of the ACL.

Examples

# Include user IP addresses in MAC authentication requests on Ten-GigabitEthernet 0/0/6.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 0/0/6

[Sysname-Ten-GigabitEthernet0/0/6] mac-authentication carry user-ip

# Include user IP addresses in MAC authentication requests on Ten-GigabitEthernet 0/0/6 and deny users that use IPv6 link-local addresses from performing MAC authentication on the port.

<Sysname> system-view

[Sysname] acl ipv6 basic 2000

[Sysname-acl-ipv6-basic-2000] rule deny source fe80:0::0:0 16

[Sysname-acl-ipv6-basic-2000] quit

[Sysname] interface ten-gigabitethernet 0/0/6

[Sysname-Ten-GigabitEthernet0/0/6] mac-authentication carry user-ip exclude-ip acl 2000

Related commands

mac-authentication

mac-authentication domain

Use mac-authentication domain to specify a global or port-specific authentication domain.

Use undo mac-authentication domain to restore the default.

Syntax

mac-authentication domain domain-name

undo mac-authentication domain

Default

The system default authentication domain is used. For more information about the default authentication domain, see the domain default enable command in "AAA commands."

Views

System view

Layer 2 Ethernet interface view

Predefined user roles

network-admin

Parameters

domain-name: Specifies the name of an ISP domain, a case-insensitive string of 1 to 255 characters.

Usage guidelines

The global authentication domain applies to all MAC authentication-enabled ports. An authentication domain specified in Layer 2 Ethernet interface view applies only to the port. You can specify different authentication domains on different ports.

A port chooses an authentication domain for MAC authentication users in the following order:

1. Authentication domain specified on the port.

2. Global authentication domain specified in system view.

3. Default authentication domain.

Examples

# Specify ISP domain domain1 as the global MAC authentication domain.

<Sysname> system-view

[Sysname] mac-authentication domain domain1

# Specify ISP domain aabbcc as the MAC authentication domain on Ten-GigabitEthernet 0/0/6.

[Sysname] interface ten-gigabitethernet 0/0/6

[Sysname-Ten-GigabitEthernet0/0/6] mac-authentication domain aabbcc

Related commands

display mac-authentication

domain default enable

mac-authentication host-mode

Use mac-authentication host-mode multi-vlan to enable MAC authentication multi-VLAN mode on a port.

Use undo mac-authentication host-mode to restore the default.

Syntax

mac-authentication host-mode multi-vlan

undo mac-authentication host-mode

Default

MAC authentication multi-VLAN mode is disabled on a port. When the port receives a packet sourced from an authenticated MAC address in a VLAN not matching the existing MAC-VLAN mapping, the device logs off and reauthenticates the user.

Views

Layer 2 Ethernet interface view

Predefined user roles

network-admin

Usage guidelines

The MAC authentication multi-VLAN mode prevents an authenticated online user from service interruption caused by VLAN changes on a port. When the port receives a packet sourced from the user in a VLAN not matching the existing MAC-VLAN mapping, the device neither logs off the user nor reauthenticates the user. The device creates a new MAC-VLAN mapping for the user, and traffic transmission is not interrupted. The original MAC-VLAN mapping for the user remains on the device until it dynamically ages out. As a best practice, configure this feature on hybrid or trunk ports.

This feature improves transmission of data that is vulnerable to delay and interference. It is typically applicable to IP phone users.

Examples

# Enable MAC authentication multi-VLAN mode on Ten-GigabitEthernet 0/0/6.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 0/0/6

[Sysname-Ten-GigabitEthernet0/0/6] mac-authentication host-mode multi-vlan

Related commands

display mac-authentication

mac-authentication max-user

Use mac-authentication max-user to set the maximum number of concurrent MAC authentication users on a port.

Use undo mac-authentication max-user to restore the default.

Syntax

mac-authentication max-user max-number

undo mac-authentication max-user

Default

A port allows a maximum of 4294967295 concurrent MAC authentication users.

Views

Layer 2 Ethernet interface view

Predefined user roles

network-admin

Parameters

max-number: Sets the maximum number of concurrent MAC authentication users on the port. The value range for this argument is 1 to 4294967295.

Usage guidelines

Set the maximum number of concurrent MAC authentication users on a port to prevent the system resources from being overused. When the maximum number is reached, the port denies subsequent MAC authentication users.

Examples

# Configure Ten-GigabitEthernet 0/0/6 to support a maximum of 32 concurrent MAC authentication users.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 0/0/6

[Sysname-Ten-GigabitEthernet0/0/6] mac-authentication max-user 32

Related commands

display mac-authentication

mac-authentication re-authenticate server-unreachable keep-online

Use mac-authentication re-authenticate server-unreachable keep-online to enable the keep-online feature on a port.

Use undo mac-authentication re-authenticate server-unreachable to restore the default.

Syntax

mac-authentication re-authenticate server-unreachable keep-online

undo mac-authentication re-authenticate server-unreachable

Default

The keep-online feature is disabled on a port. The device logs off online MAC authentication users if no server is reachable for MAC reauthentication.

Views

Layer 2 Ethernet interface view

Predefined user roles

network-admin

Usage guidelines

The keep-online feature keeps authenticated MAC authentication users online when no server is reachable for MAC reauthentication.

Examples

# Enable the keep-online feature for authenticated MAC authentication users on Ten-GigabitEthernet 0/0/6.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 0/0/6

[Sysname-Ten-GigabitEthernet0/0/6] mac-authentication re-authenticate server-unreachable keep-online

Related commands

display mac-authentication

mac-authentication timer (interface view)

Use mac-authentication timer to configure a MAC authentication timer on a port.

Use undo mac-authentication timer to restore the default of a MAC authentication timer.

Syntax

mac-authentication timer { auth-delay auth-delay-time | reauth-period reauth-period-value }

undo mac-authentication timer { auth-delay | reauth-period }

Default

No MAC authentication delay timer is set on a port. MAC authentication delay is disabled. MAC authentication starts immediately after it is triggered by a user packet.

No periodic MAC reauthentication timer is set on a port. The port uses the global periodic MAC reauthentication timer.

Views

Layer 2 Ethernet interface view

Predefined user roles

network-admin

Parameters

auth-delay auth-delay-time: Sets the delay time for MAC authentication in seconds. The value range is 1 to 180.

reauth-period reauth-period-value: Sets the port-specific periodic MAC reauthentication timer in seconds. The value range is 60 to 7200.

Usage guidelines

When both 802.1X authentication and MAC authentication are enabled on a port, you can delay MAC authentication so that 802.1X authentication is preferentially triggered. If no 802.1X authentication is triggered or if 802.1X authentication fails within the delay period, the port continues to process MAC authentication.

Do not set the port security mode to mac-else-userlogin-secure or mac-else-userlogin-secure-ext when you want to use MAC authentication delay. The delay does not take effect on a port in either of the two modes. For more information about port security modes, see "Port security commands."

The device reauthenticates online MAC authentication users on a port at the specified periodic reauthentication interval if the port is enabled with periodic MAC reauthentication. To enable periodic MAC reauthentication on a port, use the mac-authentication re-authenticate command.

A change to the port-specific periodic reauthentication timer applies to online users only after the old timer expires.

The device selects a periodic reauthentication timer for MAC reauthentication in the following order:

1. Server-assigned reauthentication timer.

2. Port-specific reauthentication timer.

3. Global reauthentication timer.

4. Default reauthentication timer.

Examples

# Enable MAC authentication delay on Ten-GigabitEthernet 0/0/6 and set the delay time to 10 seconds.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 0/0/6

[Sysname-Ten-GigabitEthernet0/0/6] mac-authentication timer auth-delay 10

Related commands

display mac-authentication

port-security port-mode

mac-authentication timer (system view)

Use mac-authentication timer to configure a MAC authentication timer.

Use undo mac-authentication timer to restore the default of a MAC authentication timer.

Syntax

mac-authentication timer { offline-detect offline-detect-value | quiet quiet-value | reauth-period reauth-period-value | server-timeout server-timeout-value }

undo mac-authentication timer { offline-detect | quiet | reauth-period | server-timeout }

Default

The following MAC authentication timers apply:

· The offline detect timer is 300 seconds.

· The quiet timer is 60 seconds.

· The global periodic MAC reauthentication timer is 3600 seconds.

· The server timeout timer is 100 seconds.

Views

System view

Predefined user roles

network-admin

Parameters

offline-detect offline-detect-value : Sets the offline detect timer. The value range is 60 to 2147483647 seconds.

quiet quiet-value: Sets the quiet timer. The value range is 1 to 3600 seconds.

reauth-period reauth-period-value: Sets the global periodic MAC reauthentication timer. The value range is 60 to 7200 seconds.

server-timeout server-timeout-value: Sets the server timeout timer. The value range is 100 to 300 seconds.

Usage guidelines

MAC authentication uses the following timers:

· Offline detect timer—Sets the interval that the device must wait for traffic from a user before the device determines that the user is idle. If the device has not received traffic from a user before the timer expires, the device logs off that user and requests the accounting server to stop accounting for the user. This timer takes effect only when the MAC authentication offline detection feature is enabled.

As a best practice, set the MAC address aging timer to the same value as the offline detect timer. This operation prevents a MAC authenticated user from being logged off within the offline detect interval because of MAC address entry expiration.

· Quiet timer—Sets the interval that the device must wait before the device can perform MAC authentication for a user that has failed MAC authentication. All packets from the MAC address are dropped during the quiet time. This quiet mechanism prevents repeated authentication from affecting system performance.

· Periodic MAC reauthentication timer—Sets the interval at which the device reauthenticates online MAC authentication users on a port if the port is enabled with periodic MAC reauthentication. A change to the global periodic reauthentication timer applies to online users only after the old timer expires.

· Server timeout timer—Sets the interval that the device waits for a response from a RADIUS server before the device determines that the RADIUS server is unavailable. If the timer expires during MAC authentication, the user fails MAC authentication.

To avoid forced logoff before the server timeout timer expires, set the server timeout timer to a value that is lower than or equal to the product of the following values:

¡ The maximum number of RADIUS packet transmission attempts set by using the retry command in RADIUS scheme view.

¡ The RADIUS server response timeout timer set by using the timer response-timeout command in RADIUS scheme view.

For information about setting the maximum number of RADIUS packet transmission attempts and the RADIUS server response timeout timer, see AAA configuration in User Access and Authentication Configuration Guide.

Examples

# Set the server timeout timer to 150 seconds.

<Sysname> system-view

[Sysname] mac-authentication timer server-timeout 150

Related commands

display mac-authentication

retry

timer response-timeout (RADIUS scheme view)

mac-authentication user-name-format

Use mac-authentication user-name-format to configure the type of user accounts for MAC authentication users.

Use undo mac-authentication user-name-format to restore the default.

Syntax

mac-authentication user-name-format { fixed [ account name ] | mac-address [ { with-hyphen [ six-section | three-section ] | without-hyphen } [ lowercase | uppercase ] ] } [ password { cipher | simple } string ]

undo mac-authentication user-name-format

Default

The MAC address of each user is used as both the username and password for MAC authentication. The MAC addresses are in hexadecimal notation without hyphens, and letters are in lower case.

Views

System view

Predefined user roles

network-admin

Parameters

fixed: Uses a shared account for all MAC authentication users.

account name: Specifies the username for the shared account. The name is a case-sensitive string of 1 to 55 characters, excluding the at sign (@). If you do not specify a username, the default name mac applies.

mac-address: Uses MAC-based user accounts for MAC authentication users.

with-hyphen: Includes hyphens in a MAC address.

six-section: Specifies the six-section format. For example, xx-xx-xx-xx-xx-xx or XX-XX-XX-XX-XX-XX.

three-section: Specifies the three-section format. For example, xxxx-xxxx-xxxx or XXXX-XXXX-XXXX.

without-hyphen: Excludes hyphens from a MAC address, for example, xxxxxxxxxxxx.

lowercase: Specifies letters in lower case.

uppercase: Specifies letters in upper case.

password: Specifies the user password. If you do not specify a password for MAC-based user accounts, the device uses the MAC address of each user in the specified format as the password. If you do not specify a password for the shared account, the shared account does not have a password.

cipher: Specifies a password in encrypted form.

simple: Specifies a password in plaintext form. For security purposes, the password specified in plaintext form will be stored in encrypted form.

string: Specifies the password. Its plaintext form is a case-sensitive string of 1 to 63 characters. Its encrypted form is a case-sensitive string of 1 to 117 characters.

Usage guidelines

If you do not specify the six-section or three-section keyword, the MAC addresses in MAC-based user accounts are in six-section format.

If you specify the MAC-based user account format, the device uses the MAC address of a user as the username for MAC authentication of the user. This user account type ensures high authentication security. However, you must create on the authentication server a user account for each user, using the MAC address of the user as the username.

If you specify a shared user account, the device uses the specified username and password for MAC authentication of all users. Because all MAC authentication users use a single account for authentication, you only need to create one account on the authentication server. This user account type is suitable for trusted networks.

Examples

# Configure a shared account for MAC authentication users, and set the username to abc and password to plaintext string of xyz.

<Sysname> system-view

[Sysname] mac-authentication user-name-format fixed account abc password simple xyz

# Use the MAC address of each user as both the username and password for MAC authentication. The MAC addresses are in hexadecimal notation without hyphens, and letters are in upper case.

<Sysname> system-view

[Sysname] mac-authentication user-name-format mac-address without-hyphen uppercase

Related commands

display mac-authentication

reset mac-authentication statistics

Use reset mac-authentication statistics to clear MAC authentication statistics.

Syntax

reset mac-authentication statistics [ interface interface-type interface-number ]

Views

User view

Predefined user roles

network-admin

Parameters

interface interface-type interface-number: Specifies a port by its type and number. If you do not specify a port, this command clears both global and port-specific MAC authentication statistics.

Examples

# Clear MAC authentication statistics on Ten-GigabitEthernet 0/0/6.

<Sysname> reset mac-authentication statistics interface ten-gigabitethernet 0/0/6

Related commands

display mac-authentication

16-User Access and Authentication Command Reference

MAC authentication commands

mac-authentication carry user-ip

mac-authentication host-mode

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