Configuring Rip Authentication; Configuring Split Horizon - Cisco 3845 - Security Bundle Router Software Manual
Software configuration guide
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Configuring RIP
Command
Step 12
end
Step 13
show ip protocols
Step 14
copy running-config
startup-config
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
page
The switch supports two modes of authentication on interfaces for which RIP authentication is enabled:
plain text and MD5. The default is plain text.
Beginning in privileged EXEC mode, follow these steps to configure RIP authentication on an interface:
Command
Step 1
configure terminal
Step 2
interface interface-id
Step 3
ip rip authentication key-chain name-of-chain
Step 4
ip rip authentication mode [text | md5}
Step 5
end
Step 6
show running-config interface [interface-id]
Step 7
copy running-config startup-config
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 Split Horizon
Routers connected to broadcast-type IP networks and using distance-vector routing protocols normally
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 any interface from which that information
originated. This feature can optimize communication among multiple routers when links are broken.
Cisco ME 3800X and 3600X Switch Software Configuration Guide
29-20
Purpose
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
29-103.
Chapter 29
"Managing Authentication Keys" section on
Purpose
Enter global configuration mode.
Enter interface configuration mode, and specify the
interface to configure.
Enable RIP authentication.
Configure the interface to use plain text authentication (the
default) or MD5 digest authentication.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Configuring IP Unicast Routing
OL-23400-01
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