{In EIGRP we create Key Chain which we specify the Password to Authenticate
the other Routers}
{After We Implement the Key chain in Router Interfaces}
{We use MD5 (128 bits) Authentication}
Ø ROUTER1(config)#key chain
DEMO {Demo:- key chain Name (any)
Ø ROUTER1(config-keychain)#key
1 {1: key no {any} But Same in all routers}
Ø ROUTER1(config-keychain-key)#key-string
cisco {cisco :- Password same in all routers}
Ø ROUTER1(config-keychain-key)#exit
{Now Implement the Key Chain in interfaces of
routers}
Ø ROUTER1(config-if)#interface serial
0/1
Ø ROUTER1(config-if)#ip
authentication key-chain eigrp 10 DEMO
Ø ROUTER1(config-if)#exit
Ø ROUTER1(config)#interface
fastEthernet 0/1
Ø ROUTER1(config-if)#ip authentication mode eigrp 10 md5
Ø ROUTER1(config-if)# ip
authentication key-chain eigrp 10 DEMO
Ø ROUTER1(config)#interface f1/0
Ø ROUTER1(config-if)# ip
authentication mode eigrp 10 md5
Ø ROUTER1(config-if)# ip
authentication key-chain eigrp 10 DEMO
Ø ROUTER1(config-if)#exit
Ø ROUTER2(config)#key chain
DEMO {Demo:- key chain Name (any)
Ø ROUTER2(config-keychain)# key 1 {1: key no {any} But Same
in all routers}
Ø ROUTER2(config-keychain-key)# key-string cisco {cisco :-
Password same in all routers}
Ø ROUTER2(config-keychain-key)#exit
{Now Implement the Key Chain in interfaces of
routers}
Ø ROUTER2(config)#interface serial0/1
Ø ROUTER2(config-if)#ip
authentication mode eigrp 10 md5
Ø ROUTER2(config-if)# ip
authentication key-chain eigrp 10 DEMO
Ø ROUTER2(config-if)#exit
Ø ROUTER2(config)#interface f1/0
Ø ROUTER2(config-if)#ip
authentication mode eigrp 10 md5
Ø ROUTER2(config-if)# ip
authentication key-chain eigrp 10 DEMO
Ø ROUTER2(config-if)#exit
Ø ROUTER2(config)#interface f0/1
Ø ROUTER2(config-if)#ip
authentication mode eigrp 10 md5
Ø ROUTER2(config-if)# ip
authentication key-chain eigrp 10 DEMO
Ø ROUTER2(config-if)#exit
Ø ROUTER3(config)#key chain
DEMO {Demo:- key chain Name (any)
Ø ROUTER3(config-keychain)# key 1
{1: key no {any} But Same in all
Ø ROUTER3(config-keychain-key)# key-string cisco {cisco :- Password same in
all routers}
Ø ROUTER3(config-keychain-key)#exit
{Now Implement the Key Chain in interfaces of
routers}
Ø ROUTER3(config)#interface
fastEthernet 0/0
Ø ROUTER3(config-if)#ip
authentication mode eigrp 10 md5
Ø ROUTER3(config-if)# ip
authentication key-chain eigrp 10 DEMO
Ø ROUTER3(config-if)#exit
Ø ROUTER3(config)#interface f1/0
Ø ROUTER3(config-if)#ip
authentication mode eigrp 10 md5
Ø ROUTER3(config-if)# ip
authentication key-chain eigrp 10 DEMO
Ø ROUTER3(config-if)#exit
Ø ROUTER3(config)#interface
fastEthernet 0/1
Ø ROUTER3(config-if)#ip
authentication mode eigrp 10 md5
Ø ROUTER3(config-if)# ip
authentication key-chain eigrp 10 DEMO
Ø ROUTER3(config-if)#exit
Sambhaji DindeJune 22, 2017 at 4:52 PM
ReplyDeletePlease upload PDF of EIGRP Neighbor Authentication.
Great Article
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