Configuration commands

Configure MD5 authentication for RIPv2 and MD5 keychain for RIPv2 interfaces by using the following commands.

Syntax


no ip rip authentication-type none|text|md5

Enable, disable or configure RIP on the VLAN interface.

When no is specified, the command disables RIP on the interface.

This command can be followed by a RIP configuration command. This is a VLAN context command that can be entered in a VLAN context or following the vlan enable/disable/configure RIP command on the VLAN interface.

none: Do not use authentication.
text: Use simple password.
MD5: Use MD5 authentication.

Using MD5

switch(vlan-10)# ip rip authentication-type md5

Using none

switch(vlan-10)# ip rip authentication-type none

Syntax


no ip rip md5-auth-key-chain keychain-name

Used to enable, disable or configure Routing Internet Protocol (RIP) on the VLAN interface. When no is specified, the command disables RIP on the interface. The command can be followed by a RIP configuration command. This is a VLAN context command that can be entered in a VLAN context or following the vlan vlan-id command.

No authentication for RIP interfaces is the default configuration.

md5-auth-key-chain: Set the RIP MD5 authentication key chain (maximum 32 characters).

Using MD5-auth-key-chain

switch(vlan-10)# ip rip md5-auth-key-chain

NOTE:

simpleand none authentication is supported on all RIP interfaces. MD5 authentication is supported for RIPv2 interfaces. With MD5 authentication, MD5-keyed digest is put into the packet instead secret password. This mechanism better protects RIPv2 routing message from any eavesdropping than simple or none.