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Duplicate address messages in HSRP

I have 2 4908G-L3 running IOS 12.0(14)W5(20) with 2 BVI interfaces and HSRP between them. I receive this messages in both Catalyst:

Catalyst 1

Sep 3 15:11:01: %STANDBY-3-DUPADDR: Duplicate address 200.35.96.12 on BVI2, sourced by 0007.0ea1.8a09

Catalyst 2

Sep 3 15:13:03: %STANDBY-3-DUPADDR: Duplicate address 200.35.96.1 on BVI2, sourced by 0000.0c07.ac66

Each Catalyst sees its IP address in the other Catalyst. It happen just after a network failure. The network is up but i still receive the messages.

1 REPLY
Cisco Employee

Re: Duplicate address messages in HSRP

Check for any layer 2 loops. The following page should help you

http://www.cisco.com/warp/public/473/62.shtml#casestudy1

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