weird issue with EIGRP and VLAN interface

millworxmillworx Posts: 290Member
So I have my router plugged into my 3750 switch. The 3750 has vlan interface 99 configured with an IP, the connected router has ip in the same subnet. Now the issue I keep getting is with eirgrp constantly flapping. I'm kind of scratching my head.


*Apr 6 08:28:15.964: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 10.33.10.161 (Vlan9) is down: retry limit exceeded
*Apr 6 08:28:15.964: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 10.33.10.161 (Vlan9) is up: new adjacency
*Apr 6 08:28:21.836: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 10.33.10.164 (Vlan9) is down: Peer Termination received
*Apr 6 08:28:25.120: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 10.33.10.164 (Vlan9) is up: new adjacency
*Apr 6 08:28:26.728: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 10.33.10.163 (Vlan9) is down: Peer Termination received
*Apr 6 08:28:29.736: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 10.33.10.163 (Vlan9) is up: new adjacency

Here are the relevant configs, first the switch (ip routing is enabled)
vlan 9
 name outside
 
interface GigabitEthernet2/5
 switchport access vlan 9
 
interface Vlan9
 ip address 10.33.10.161 255.255.255.224
!
!
router eigrp 1
 network 10.33.10.160 0.0.0.31
 passive-interface default
 no passive-interface Vlan9
 no passive-interface GigabitEthernet2/5

Now the Router Config
interface GigabitEthernet0/0/0
 description Connect to 3750 int gig 2/5
 ip address 10.33.10.163 255.255.255.224
 no negotiation auto
 
router eigrp 1
 network 10.33.10.160 0.0.0.31
 passive-interface default
 no passive-interface GigabitEthernet0/0/0
Currently Reading:
CCIE: Network Security Principals and Practices
CCIE: Routing and Switching Exam Certification Guide

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