3Com 3C13636 Configuration Manual page 591

3Com Router 3000 Ethernet Family
Configuration Guide
After the above configuration, executing display ip routing-table command on
RouterB and RouterC, you can view the information of route 11.0.0.0/8. Shut down the
interface Ethernet2/0/0 of RouterA, you can view that the route state of 11.0.0.0/8 to
RouterB and RouterC changes into unreachable state within 30 seconds.
Before the timer is adjusted, it takes 180 seconds for RouterB and RouterC to know that
the route is unreachable after the interface Ethernet2/0/0 of RouterA is shut down.
Therefore, the convergence time of RIP network is cut down due to the adjustment on
the timer.
3.4.3 Configuring Route Exchange of Indirectly Connected RIP Neighbors
I. Network requirements
As shown in the following figure, RouterB does not support the RIP protocol. the e1/0/0
interface of RouterA is RIP-enabled, directly connected routes are redistributed and
configured to point to the static route of 2.0.0.0/8. The e1/0/1 interface of RouterC is
RIP-enabled, directly connected routes are redistributed and configured to point to the
static route of 1.0.0.0/8. RouterA and RouterC are configured to be RIP peers. The
checking of the source address of the received RIP packet is disabled. The aim is to
obtain the RIP route of 200.0.0.1/24 to RouterC on RouterA, and the RIP route of
100.0.0.1/8 to RouterA on RouterC.
II. Network diagram
loopback0:
100.0.0.1/8
RouterA
Figure 3-4 Configure route exchange of indirectly connected RIP neighbors
III. Configuration procedure
1) Configure RouterA:
# Configure the IP address of the interface.
[RouterA ] interface Ethernet1/0/0
[RouterA-Ethernet1/0/0] ip address 1.0.0.1 255.0.0.0
[RouterA-Ethernet1/0/0] rip version 2
[RouterA-Ethernet1/0/0] interface LoopBack0
[RouterA-LoopBack0] ip address 100.0.0.1 255.0.0.0
[RouterA-LoopBack0] quit
# Enable the RIP protocol.
[RouterA ] rip
e1/0/0: e1/0/0:
1.0.0.1/8 1.0.0.2/8
RouterB
3Com Corporation
3-20
Chapter 3 RIP Configuration
e1/0/1: e1/0/1:
2.0.0.2/8 2.0.0.1/8
loopback0:
200.0.0.1/24
RouterC