WLC doesn't forward gratuitous arp from firewall

Unanswered Question
May 5th, 2009
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Hello,


we have a big issue with our WLCs.

We want to secure our wireless networks with a checkpoint firewall in front.

Because of high availability we have two firewalls.

If the active firewall breaks the backup firewall sends a gratuitous arp to tell all devices which MAC is the new one for the gateway IP-address.


But this gratuitous arp is not forwarded by the WLC. Over an IOS-accesspoint it works fine. But the clients behind the WLC can't work after a failover.


We activated the "Boradcast forwarding" in the general controller settings. But it doesn't work.


Is there a posibility to forward this broadcasts?




Thanks a lot!

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Sven Hruza Thu, 05/07/2009 - 00:41
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There are some bug-IDs which describe the problem.


CSCsy19894

CSCsq49975

CSCsq10294


I think the last one is our issue.


At the moment we use the software 5.2.178.0.


Is it right that if a bug is fixed in 5.2.157.0 it is possible that the bug is active in 5.2.178.0 again?

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