now that we've made this beautiful little lab, let's ruin it by adding key chains...
ready...
r1
key chain hulk-key
key 1
key-string hulk
int e0/0
ip authenti key-chain eigrp 1 hulk-key
ip authenti mode eigrp 1 md5
int s1/0
ip authenti key-chain eigrp 1 hulk-key
ip authenti mode eigrp 1 md5
int s1/3
ip authenti key-chain eigrp 1 hulk-key
ip authenti mode eigrp 1 md5
r2
key chain hulk-key
key 1
key-string hulk
int e0/0
ip authenti key-chain eigrp 1 hulk-key
ip authenti mode eigrp 1 md5
int s1/0
ip authenti key-chain eigrp 1 hulk-key
ip authenti mode eigrp 1 md5
int s1/2
ip authenti key-chain eigrp 1 hulk-key
ip authenti mode eigrp 1 md5
r3
key chain hulk-key
key 1
key-string hulk
int e0/0
ip authenti key-chain eigrp 1 hulk-key
ip authenti mode eigrp 1 md5
int s1/2
ip authenti key-chain eigrp 1 hulk-key
ip authenti mode eigrp 1 md5
int s1/3
ip authenti key-chain eigrp 1 hulk-key
ip authenti mode eigrp 1 md5
md5 will cause flapping, so do this at home...
r3#sh ip eigrp int det
Se1/2 0 0/0 0 10/380 520 0
Hello interval is 5 sec Next xmit serial
Un/reliable mcasts: 0/0 Un/reliable ucasts: 31/28
Mcast exceptions: 0 CR packets: 0 ACKs suppressed: 8
Retransmissions sent: 0 Out-of-sequence rcvd: 0
Authentication mode is md5, key-chain is "hulk-key"
it's so funny in these labs, they try to make it so serious and shit... "your CIO has specified that the current hello interval for eigrp is not acceptable..." lmao..
ok, change it to two...
r3(config-if)#ip hello-int eigrp 1 2
r3(config-if)#end
r3#sh ip eigrp 1 int det s1/2
IP-EIGRP interfaces for process 100
Xmit Queue Mean Pacing Time Multicast Pending
Interface Peers Un/Reliable SRTT Un/Reliable Flow Timer Routes
Se1/2 0 0/0 0 10/380 520 0
Hello interval is 2 sec
next...
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