H3C Routers

PPP Configuration Examples

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Contents

Introduction· 1

Prerequisites· 1

Example: Configuring MP+CHAP·· 1

Network configuration· 1

Software versions used· 1

Restrictions and guidelines· 1

Procedures· 1

Configuring Device A·· 1

Configuring Device B· 2

Verifying the configuration· 3

Configuration files· 4

Related documentation· 5

 

Introduction

The following information provides PPP protocol-related configuration examples.

Prerequisites

The following information applies to Comware 9-based router. Procedures and information in the examples might be slightly different depending on the software or hardware version of the routers.

The configuration examples were created and verified in a lab environment, and all the devices were started with the factory default configuration. When you are working on a live network, make sure you understand the potential impact of every command on your network.

This document assumes that you have basic knowledge of PPP, MP, PPPoE, and DHCP.

Example: Configuring MP+CHAP

Network configuration

As shown in Figure 1, Serial 0/2/0 and Serial 0/2/1 of Device A are connected to Serial 0/2/0 and Serial 0/2/1 of Device B, respectively. Set up an MP link in MP-group mode. Each PPP link uses CHAP for authentication.

Figure 1 Network diagram

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Software versions used

This configuration example was created and verified on R9141P16 of the MSR2630E-X1 device.

Restrictions and guidelines

·     Make sure the username and password for CHAP authentication are the same on both ends.

·     After a serial interface is configured, you must use the undo shutdown command to bring up the interface.

·     When creating a PPP user, you must specify the network option after the class keyword in the local-user command.

Procedures

Configuring Device A

1.     Create a local user for Device B, and set the service type to PPP for the local user.

<DeviceA> system-view

[DeviceA] local-user userb class network

[DeviceA-luser-network-userb] password simple hello

[DeviceA-luser-network-userb] service-type ppp

[DeviceA-luser-network-userb] quit

2.     Configure serial interface Serial 0/2/0, and use the default ISP domain system to perform CHAP authentication for Device B.

[DeviceA] interface serial 0/2/0

[DeviceA-Serial0/2/0] link-protocol ppp

[DeviceA-Serial0/2/0] ppp authentication-mode chap domain system

[DeviceA-Serial0/2/0] quit

3.     Configure serial interface Serial 0/2/1, and use the default ISP domain system to perform CHAP authentication for Device B.

[DeviceA] interface serial 0/2/1

[DeviceA-Serial0/2/1] link-protocol ppp

[DeviceA-Serial0/2/1] ppp authentication-mode chap domain system

[DeviceA-Serial0/2/1] quit

4.     In the default ISP domain system, configure PPP users to use local authentication.

[DeviceA] domain system

[DeviceA-isp-system] authentication ppp local

5.     Create an MP-group interface, and assign an IP address to it.

<DeviceA> system-view

[DeviceA] interface mp-group 0/0/1

[DeviceA-MP-group0/0/1] ip address 1.1.1.1 24

[DeviceA-MP-group0/0/1] quit

6.     Assign serial interface Serial 0/2/0 to MP-group 1, and bring up the interface.

[DeviceA] interface serial 0/2/0

[DeviceA-Serial0/2/0] ppp mp mp-group 0/0/1

[DeviceA-Serial0/2/0] shutdown

[DeviceA-Serial0/2/0] undo shutdown

[DeviceA-Serial0/2/0] quit

7.     Assign serial interface Serial 0/2/1 to MP-group 1, and bring up the interface.

[DeviceA] interface Serial 0/2/1

[DeviceA-Serial0/2/1] ppp mp mp-group 0/0/1

[DeviceA-Serial0/2/1] shutdown

[DeviceA-Serial0/2/1] undo shutdown

[DeviceA-Serial0/2/1] quit

Configuring Device B

1.     Configure serial interface Serial 0/2/0, and enable PPP encapsulation on the interface. Configure the username and password for CHAP authentication on the interface.

<DeviceB> system-view

[DeviceB] interface serial 0/2/0

[DeviceB-Serial0/2/0] link-protocol ppp

[DeviceB-Serial0/2/0] ppp chap user userb

[DeviceB-Serial0/2/0] ppp chap password simple hello

[DeviceB-Serial0/2/0] quit

2.     Configure serial interface Serial 0/2/1, and enable PPP encapsulation on the interface. Configure the username and password for CHAP authentication on the interface.

[DeviceB] interface Serial 0/2/1

[DeviceB-Serial0/2/1] link-protocol ppp

[DeviceB-Serial0/2/1] ppp chap user userb

[DeviceB-Serial0/2/1] ppp chap password simple hello

[DeviceB-Serial0/2/1] quit

3.     Create an MP-group interface, and assign an IP address to it.

[DeviceB] interface mp-group 0/0/1

[DeviceB-Mp-group1] ip address 1.1.1.2 24

[DeviceB-Mp-group1] quit

4.     Assign serial interface Serial 0/2/0 to MP-group 1, and bring up the interface.

[DeviceB] interface serial 0/2/0

[DeviceB-Serial0/2/0] link-protocol ppp

[DeviceB-Serial0/2/0] ppp mp mp-group 0/0/1

[DeviceB-Serial0/2/0] shutdown

[DeviceB-Serial0/2/0] undo shutdown

[DeviceB-Serial0/2/0] quit

5.     Assign serial interface Serial 0/2/1 to MP-group 1, and bring up the interface.

[DeviceB] interface Serial 0/2/1

[DeviceB-Serial0/2/1] link-protocol ppp

[DeviceB-Serial0/2/1] ppp mp mp-group 0/0/1

[DeviceB-Serial0/2/1] shutdown

[DeviceB-Serial0/2/1] undo shutdown

[DeviceB-Serial0/2/1] quit

Verifying the configuration

1.     Display the MP information of Device A.

[DeviceA] display ppp mp

Template: Mp-group0/0/1

max-bind: 16, fragment: enabled, min-fragment: 128

  Master link: Mp-group0/0/1, Active members: 2, Bundle Multilink

  Peer's endPoint descriptor: Mp-group0/0/1

  Sequence format: long (rcv)/long (sent)

  Bundle Up Time: 2014/07/22  16:51:40:835

  0 lost fragments, 5 reordered, 0 unassigned, 0 interleaved

  Sequence: 4 (rcv)/5 (sent)

  Active member channels: 2 members

        Serial0/2/0                 Up-Time:2014/07/22  16:51:40:836

        Serial0/2/1                 Up-Time:2014/07/22  16:51:53:542

2.     Display information about interface MP-group 0/0/1 on Device A.

[DeviceA] display interface mp-group 0/0/1

MP-group0/0/1

Current state: UP

Line protocol state: UP

Description: MP-group0/0/1 Interface

Bandwidth: 128kbps

Maximum Transmit Unit: 1500

Hold timer: 10 seconds

Internet Address is 1.1.1.1/24 Primary

Link layer protocol: PPP

LCP: opened, MP: opened, IPCP: opened

Physical: MP, baudrate: 128000 bps

Output queue - Urgent queuing: Size/Length/Discards 0/100/0

Output queue - Protocol queuing: Size/Length/Discards 0/500/0

Output queue - FIFO queuing: Size/Length/Discards 0/75/0

Last clearing of counters: Never

Last 300 seconds input rate: 1 bytes/sec, 8 bits/sec, 0 packets/sec

Last 300 seconds output rate: 1 bytes/sec, 8 bits/sec, 0 packets/sec

Input: 8 packets, 466 bytes, 0 drops

Output: 8 packets, 456 bytes, 0 drops

3.     Ping the peer IP address from Device A.

[DeviceA] ping 1.1.1.2

Ping 1.1.1.2 (1.1.1.2): 56 data bytes, press CTRL_C to break

56 bytes from 1.1.1.2: icmp_seq=0 ttl=255 time=25.749 ms

56 bytes from 1.1.1.2: icmp_seq=1 ttl=255 time=25.751 ms

56 bytes from 1.1.1.2: icmp_seq=2 ttl=255 time=25.521 ms

56 bytes from 1.1.1.2: icmp_seq=3 ttl=255 time=25.512 ms

56 bytes from 1.1.1.2: icmp_seq=4 ttl=255 time=25.599 ms

--- Ping statistics for 1.1.1.2 ---

5 packets transmitted, 5 packets received, 0.0% packet loss

round-trip min/avg/max/std-dev = 25.512/25.626/25.751/0.105 ms

<DeviceA>%Jul 22 17:08:22:460 2014 DeviceA PING/6/PING_STATISTICS: Ping statisti

cs for 1.1.1.2: 5 packets transmitted, 5 packets received, 0.0% packet loss, rou

nd-trip min/avg/max/std-dev = 25.512/25.626/25.751/0.105 ms.

Configuration files

·     Device A:

#

interface Serial0/2/0

 ppp authentication-mode chap domain system

 ppp mp MP-group0/0/1

#

interface Serial0/2/1

 ppp authentication-mode chap domain system

 ppp mp MP-group0/0/1

#

interface MP-group0/0/1

 ip address 1.1.1.1 255.255.255.0

#

local-user 123 class network

 password cipher $c$3$5ulb/vg58eiBIm5EnilnsZ2cS2Cmwg==

 service-type ppp

 authorization-attribute user-role network-operator

#

·     Device B:

#

interface Serial0/2/0

 ppp chap password cipher $c$3$4kD4T3bLZ/lngijhEKIS70/oTbNSkw==

 ppp chap user 123

 ppp mp MP-group0/0/1

#

interface Serial0/2/1

 ppp chap password cipher $c$3$mVlcV3W+YQBgmxKePKpZV9tTcaFhXg==

 ppp chap user 123

 ppp mp MP-group0/0/1

#

interface MP-group0/0/1

 ip address 1.1.1.2 255.255.255.0

#

Related documentation

·     Layer 2—WAN Access Configuration Guide in H3C MSR1000[2600][3600] Routers Configuration Guides (V9)

·     Layer 2—WAN Access Command Reference in H3C MSR1000[2600][3600] Routers Command References (V9)