Information Technology Reference
In-Depth Information
Task 2: Configure RIP
Configure RIP routing on R1 as shown here.
Step 1.
R1(config)#
router rip
R1(config-router)#
network 172.30.0.0
Notice that only a single
network
statement is needed for R1. This statement includes
both interfaces on different subnets of the 172.30.0.0 major network.
Configure R1 to stop sending updates out the FastEthernet 0/0 interface.
Step 2.
Sending updates out this interface wastes the bandwidth and processing resources of all
devices on the LAN. In addition, advertising updates on a broadcast network is a security
risk. RIP updates can be intercepted with packet-sniffing software. Routing updates can be
modified and sent back to the router, corrupting the router table with false metrics that
misdirect traffic.
The
passive-interface fastethernet 0/0
command is used to disable sending RIPv1
updates out that interface. When you are finished with the RIP configuration, return to
privileged EXEC mode and save the current configuration to NVRAM:
R1(config-router)#
passive-interface fastethernet 0/0
R1(config-router)#
end
%SYS-5-CONFIG_I: Configured from console by console
R1#
copy run start
Configure RIP routing on R2 as shown here.
Step 2.
R2(config)#
router rip
R2(config-router)#
network 172.30.0.0
R2(config-router)#
network 192.168.4.0
R2(config-router)#
passive-interface fastethernet 0/0
R2(config-router)#
end
%SYS-5-CONFIG_I: Configured from console by console
R2#
copy run start
Again notice that only a single
network
statement is needed for the two subnets of
172.30.0.0. This statement includes both interfaces, on different subnets, of the 172.30.0.0
major network. The network for the WAN link between R2 and R3 is also configured.
When you are finished with the RIP configuration, return to privileged EXEC mode and
save the current configuration to NVRAM.
Configure RIP routing on R3 as shown here.
Step 3.
R3(config)#
router rip
R3(config-router)#
network 192.168.4.0
R3(config-router)#
network 192.168.5.0
R3(config-router)#
passive-interface fastethernet 0/0
R3(config-router)#
end
%SYS-5-CONFIG_I: Configured from console by console
R3#
copy run start
