Duplication of ip address and MAC

Unanswered Question
May 7th, 2008

Hi


We are experianceing a duplication of ip address problem the duplication occurs with gateway address cause all the WAN fail we check on the NMS and find duplication of ip address

1d19h: %IP-4-DUPADDR: Duplicate address 192.168.70.127 on Vlan1, sourced by 0009.6bca.7499 we have gone through IBM document highlighted this problem and resolution by changing the virtual MAC-address of HSRP link for your reference

http://www.redbooks.ibm.com/abstracts/tips0423.html?Open

What steps shall we take to permenantely remove this problem please advise

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Collin Clark Fri, 05/09/2008 - 05:05

I bet your in load balance mode and not failover mode. Since the NIC's are load balancing and using a virtual MAC, it's hopping back and forth. It's "normal" for the NICs to do this and that why we always run ours in failover.


Hope that helps.

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