beautypg.com

Ip rip authentication mode, Ip rip authentication, Mode – LevelOne GTL-2691 User Manual

Page 1467

background image

C

HAPTER

49

| IP Routing Commands

Routing Information Protocol (RIP)

– 1467 –

ip rip authentication

mode

This command specifies the type of authentication that can be used for

RIPv2 packets. Use the no form to restore the default value.

S

YNTAX

ip rip authentication mode {md5 | text}
no ip rip authentication mode

md5 - Message Digest 5 (MD5) authentication
text - Indicates that a simple password will be used.

D

EFAULT

S

ETTING

Text authentication

C

OMMAND

M

ODE

Interface Configuration (VLAN)

C

OMMAND

U

SAGE

The password to be used for authentication is specified in the

ip rip

authentication string

command.

This command requires the interface to exchange routing information

with other routers based on an authorized password. (Note that this

command only applies to RIPv2.)

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.

E

XAMPLE

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)#

R

ELATED

C

OMMANDS

ip rip authentication string (1468)