ECS4660-28F_Management Guide-R03

C HAPTER 51 | IP Routing Commands
Routing Information Protocol (RIP)
– 1743 –
◆ For authentication to function properly, both the sending and receiving
interface must be configured with the same password or authentication
key.
◆ MD5 is a one-way hash algorithm is that takes the authentication key
and produces a 128 bit message digest or “fingerprint.” This makes it
computationally infeasible to produce two messages having the same
message digest, or to produce any message having a given pre-
specified target message digest.
EXAMPLE
This example sets the authentication mode to plain text.
Console(config)#interface vlan 1
Console(config-if)#ip rip authentication mode text
Console(config-if)#
RELATED COMMANDS
ip rip authentication string (1743)
ip rip authentication
string
This command specifies an authentication key for RIPv2 packets. Use the
no form to delete the authentication key.
SYNTAX
ip rip authentication string key-string
no ip rip authentication string
key-string - A password used for authentication.
(Range: 1-16 characters, case sensitive)
DEFAULT SETTING
No authentication key
COMMAND MODE
Interface Configuration (VLAN)
COMMAND USAGE
◆ This command can be used to restrict the interfaces that can exchange
RIPv2 routing information. (Note that this command does not apply to
RIPv1.)
◆ For authentication to function properly, both the sending and receiving
interface must be configured with the same password, and
authentication enabled by the ip rip authentication mode command.