745: AS 100, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ
un/rely 0/0
Troubleshooting EIGRP 199
Similarly, the output of the debug eigrp packets command on Router Y, shown in Example 5-18,
illustrates that Router Y is receiving EIGRP packets with MD5 authentication and a key ID equal
to 2 from Router X.
Example: Troubleshooting MD5 Authentication Problems
In the example, the key string for key 2 of Router X, the one that is used when EIGRP packets are
sent, is changed to be different from the key string that Router Y is expecting.
The output of the debug eigrp packets command on Router Y, shown in Example 5-19, illustrates
that Router Y is receiving EIGRP packets with MD5 authentication and a key ID equal to 2 from
Router X, but that an authentication mismatch exists. The EIGRP packets from Router X are
ignored, and the neighbor relationship is declared to be down. The output of the show ip eigrp
neighbors command should con?¬?rm that Router Y has no EIGRP neighbors.
Example 5-18 Con?¬?rming MD5 Authentication on Router Y
RouterY# ddeebbuugg eeiiggrrpp ppaacckkeettss
EIGRP Packets debugging is on
(UPDATE, REQUEST, QUERY, REPLY, HELLO, IPXSAP, PROBE, ACK, STUB, SIAQUERY,
SIAREPLY)
RouterY#
*Jan 21 16:38:38.
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