Cisco 3845 - Security Bundle Router Software Manual page 585

Chapter 29 Configuring IP Unicast Routing
Beginning in privileged EXEC mode, follow these steps to enable and configure RIP:
Command
Step 1
configure terminal
Step 2
ip routing
Step 3
router rip
Step 4
network network number
Step 5
neighbor ip-address
Step 6 offset list [access-list number |
name] {in | out} offset [type
number]
Step 7
timers basic update invalid
holddown flush
Step 8 version {1 | 2}
Step 9
no auto summary
Step 10
no validate-update-source
Step 11
output-delay delay
OL-23400-01
Purpose
Enter global configuration mode.
Enable IP routing. (Required only if IP routing is disabled.)
Enable a RIP routing process, and enter router configuration mode.
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.
You must configure a network number for RIP commands to take effect.
Note
(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.
(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.
(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.
(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 commands ip rip {send | receive} version 1 | 2 |
1 2} to control what versions are used for sending and receiving on interfaces.
(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.
(Optional) Disable validation of the source IP address of incoming RIP routing
updates. By default, the switch validates the source IP address of incoming RIP
routing updates and discards the update if the source address is not valid. Under
normal circumstances, disabling this feature 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.
(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.
Cisco ME 3800X and 3600X Switch Software Configuration Guide
Configuring RIP
29-19