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dsterling

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Cisco: How to determine what routers need an updated EIGRP Auth Key

I need to update the EIGRP Authentication keys that have expired  and I'm wanting to know how I can determine what other routers in the AS are affected so I can also update them also, here is the info from the commands I think are needed to get that info:

Router_1#sh ip eigrp neighbors
IP-EIGRP neighbors for process 300
H   Address                 Interface       Hold Uptime   SRTT   RTO  Q  Seq
                                                   (sec)                  (ms)           Cnt Num
5   135.8.139.5              Vl139             34 6w5d        1   200  0  2885
4   135.8.139.6              Vl139             13 6w5d         1   200  0  1015
3   135.8.139.11            Vl139             13 6w5d        1   200  0  1316
2   135.8.139.3              Vl139             12 6w5d        12   200  0  72639
0   135.8.139.10            Vl139             13 6w5d        1   200  0  855
6   135.8.137.10            Vl137             12 12w3d      1   200  0  856
7   135.8.137.11            Vl137             13 22w3d      1   200  0  1317
1   135.8.137.5              Vl137             12 1y10w        7   200  0  72640
Router_1#

Router_1#sh run | inc eigrp
 ip authentication mode eigrp 300 md5
 ip authentication key-chain eigrp 300 VAULT
 ip hold-time eigrp 300 25
 ip authentication mode eigrp 300 md5
 ip authentication key-chain eigrp 300 VAULT
 ip authentication mode eigrp 300 md5
 ip authentication key-chain eigrp 300 VAULT
 ip authentication mode eigrp 300 md5
 ip authentication key-chain eigrp 300 VAULT
router eigrp 300

How can I determine what other routers are in AS500 so that I can update them with the EIGRP Auth Key when it's changed?

Thank you,
Dave
Avatar of dsterling
dsterling

ASKER

I meant to say AS300 not 500:

How can I determine what other routers are in AS300 so that I can update them with the EIGRP Auth Key when it's changed?
I believe you have already answered your question...By the output of the show eigrp nei command you have already enumerated all the neighbors in that AS.  

Am I missing something??
I'm trying to determine what interfaces to do the rekey on, would it be the vlans shows as neighbors and how would I determine what devices have the specific vlan on them?

Thank you,
Dave
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SeeMeShakinMyHead

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Correction: "However, you have to make sure that these are all of your neighbors first".  Should be: "...EIGRP participants in AS300"