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Cisco ME 3400 EthernetAccess Switch SoftwareConfiguration Guide
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Chapter32 Configuring IP Unicast Routing
Configuring RIP
Beginning in privileged EXEC mode, follow these steps to enable and configure RIP:
Command Purpose
Step1 configure terminal Enter global configuration mode.
Step2 ip routing Enable IP routing. (Required only if IP routing is disabled.)
Step3 router rip Enable a RIP routing process, and enter router configuration mode.
Step4 network network number Associate a network with a RIP routing process. You can specify multiple
network commands. RIP routing updates are sent and received through
interfaces only on these networks.
Step5 neighbor ip-address (Optional) Define a neighboring router with which to exchange routing
information. This step allows routing updates from RIP (normally a
broadcast protocol) to reach nonbroadcast networks.
Step6 offset list [access-list number | name]
{in | out} offset [type number](Optional) Apply an offset list to routing metrics to increase incoming
and outgoing metrics to routes learned through RIP. You can limit the
offset list with an access list or an interface.
Step7 timers basic update invalid holddown
flush (Optional) Adjust routing protocol timers. Valid ranges for all timers are
0 to 4294967295 seconds.
•update—The time between sending routing updates. The default is
30 seconds.
•invalid—The timer after which a route is declared invalid. The
default is 180 seconds.
•holddown—The time before a route is removed from the routing
table. The default is 180 seconds.
•flush—The amount of time for which routing updates are postponed.
The default is 240 seconds.
Step8 version {1 | 2} (Optional) Configure the switch to receive and send only RIP Version 1
or RIP Version 2 packets. By default, the switch receives Version 1 and 2
but sends only Version 1.
You can also use the interface comm ands ip rip {send | receive} version
1 | 2 | 1 2} to control what versions are used fo r s en d in g an d receiving on
interfaces.
Step9 no auto summary (Optional) Disable automatic summarization. By default, the switch
summarizes subprefixes when crossing classful network boundaries.
Disable summarization (RIP Version 2 only) to advertise subnet and host
routing information to classful network boundaries.
Step10 no validate-update-source (Optional) Disable validation of the source IP address of inc omi ng RIP
routing updates. By default, the switch validates the source IP address of
incoming RIP routing updates and discards the update if the so urce
address is not valid. Under normal circumstances, disabling thi s f eatur e
is not recommended. However, if you have a router that is off-network
and you want to receive its updates, you can use this command.
Step11 output-delay delay (Optional) Add interpacket delay for RIP updates sent.
By default, packets in a multiple-packet RIP update have no delay added
between packets. If you are sending packets to a lower-speed device, you
can add an interpacket delay in the range of 8 to 50 milliseconds.
Step12 end Return to privileged EXEC mode.