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authentication). This command should be used associating the ip rip authentication key or ip rip
authentication string. Independently configuration will not lead to authentication process.
Example:
Switch# config terminal
Switch(config)# interface vlan 1
Switch(Config-if-Vlan1)# ip rip authentication mode md5
1.4.3.12 ip rip authentication string
Command: ip rip authentication string <text>
no ip rip authentication string
Function:
Set the password used in RIP authentication. The “
no ip rip authentication string
”
cancels the authentication
Parameter: <text>
is the password used in authentication of which the length should be 1-16
characters with space available. The password should end with enter
Command Mode:
Interface mode
Usage Guide:
The ip rip authentication key will not be able to be configured when this command
is configured, key id value is required in MD5 authentication which is 1 when use this command.
The mode will be set to plaintext authentication in case no mode configuration is available. The
“
no ip rip authentication string
” command will cancel the authentication which only cancels the
authentication process when sending or receiving data packet other than set non authentication
mode. Input ip rip authentication string aaa aaa to set the password as aaa aaa which is 7
characters.
Example:
Switch# config terminal
Switch(config)# interface vlan 1
Switch(Config-if-Vlan1)# ip rip authentication string guest
1.4.3.13 ip rip authentication cisco-compatible
Command: ip rip authentication cisco-compatible
no ip rip authentication cisco-compatible
Function:
After configured this command, the cisco RIP packets will be receivable by
configuring the plaintext authentication or MD5 authentication.
Parameter:
None
Default:
Not configured
Command Mode:
Interface mode
Usage Guide:
After authentication is configured on the cisco router, the RIP packets will
exceeds the length of the defined standard length of the protocol once the number of route items
is greater than 25. By configuring this command the over-lengthen RIP packets will be receivable
other than denied.
Example:
Switch# config terminal