R3303-HP HSR6800 Routers Layer 2 - WAN Configuration Guide

5. Verify the configuration:

Use the display interface serial command to display information about Serial 2/0/1 of Router B.

The physical layer status and link layer status of the interface are both up, and the states of LCP and

IPCP are both Opened, indicating PPP negotiation is successful. Router A and Router B can ping

each other.

[RouterB-Serial2/0/1] display interface serial 2/0/1

Serial2/0/1 current state: UP

Line protocol current state: UP

Description: Serial2/0/1 Interface

The Maximum Transmit Unit is 1500, Hold timer is 10(sec)

Internet Address is 200.1.1.2/16 Primary

Link layer protocol is PPP

LCP opened, IPCP opened

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

Interface is V35

206 packets input, 2496 bytes

206 packets output, 2492 bytes

[RouterB-Serial2/0/1] ping 200.1.1.1

PING 200.1.1.1: 56 data bytes, press CTRL_C to break

Reply from 200.1.1.1: bytes=56 Sequence=1 ttl=255 time=103 ms

Reply from 200.1.1.1: bytes=56 Sequence=2 ttl=255 time=1 ms

Reply from 200.1.1.1: bytes=56 Sequence=3 ttl=255 time=1 ms

Reply from 200.1.1.1: bytes=56 Sequence=4 ttl=255 time=1 ms

Reply from 200.1.1.1: bytes=56 Sequence=5 ttl=255 time=10 ms

--- 200.1.1.1 ping statistics ---

5 packet(s) transmitted

5 packet(s) received

0.00% packet loss

round-trip min/avg/max = 1/23/103 ms

PPP IP address negotiation configuration example

Network requirements

As shown in Figure 15, configure Router A to allocate an IP address for Serial 2/0/1 of Router B through

PPP negotiation.

Figure 15 Network diagram

Configuration procedure

1. Configure Router A:

# Configure a local IP address pool.