32-21
Cisco ME 3400 EthernetAccess Switch SoftwareConfiguration Guide
78-17058-01
Chapter32 Configuring IP Unicast Routing Configuring RIP
To turn off the RIP routing process, use the no router rip global configuration command.
To display the parameters and current state of the active routing protocol process, use the show ip
protocols privileged EXEC command. Use the show ip rip database privileged EXEC command to
display summary address entries in the RIP database.
Configuring RIP Authentication
RIP Version 1 does not support authentication. If you are sending and receiving RIP Version 2 packets,
you can enable RIP authentication on an interface. The key chain specifies \the set of keys that can be
used on the interface. If a key chain is not configured, no authentication is performed, not even the
default. Therefore, you must also perform the tasks in the “Managing Authentication Keys” section on
page 32-82.
The switch supports two modes of authentication on interfaces for which RIP authentication is enab led:
plain text and MD5. The default is plain text.
Beginning in privileged EXEC mode, follow these steps to configure RIP authentication on an interface:
To restore clear text authentication, use the no ip rip authentication mode interface configuration
command. To prevent authentication, use the no ip rip authentication key-chain interface
configuration command.
Configuring Summary Addresses and Split Horizon
Routers connected to broadcast-type IP networks and using distance-vector routing protoc ols no rm all y
use the split-horizon mechanism to reduce the possibility of routing loops. Split horizon blocks
information about routes from being advertised by a router on a ny interface from which that information
originated. This feature usually optimizes communication among multiple routers, especially when links
are broken.
Step13 show ip protocols Verify your entries.
Step14 copy running-config startup-config (Optional) Save your entries in the configuration file.
Command Purpose
Command Purpose
Step1 configure terminal Enter global configuration mode.
Step2 interface interface-id Enter interface configuration mode, and specify the
interface to configure.
Step3 no shutdown Enable the interface if necessary. By default, UNIs are
disabled and NNIs are enabled.
Step4 ip rip authentication key-chain name-of-chain Enable RIP authentication.
Step5 ip rip authentication mode [text | md5} Configure the interface to use plain text authentication (the
default) or MD5 digest authentication.
Step6 end Return to privileged EXEC mode.
Step7 show running-config interface [interface-id] Verify your entries.
Step8 copy running-config startup-config (Optional) Save your entries in the configuration file.