VPN Concentrator Disconnects Clients

Unanswered Question
Oct 8th, 2008
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I have 2 VPN Concentrators. One acting as a primary and another as a backup. Well the primary is overloaded and has to many IPSec - Lan to Lan connections.So I moved about 15 sites over to the backup concentrator. The remotes sites connect back to the concentrator through a PIX506e.


Here's the problem. 1 by 1 the remote sites just drop the connection to the VPN Concentrator (backup). I have tried resetting the PIX, taking the commands out for the VPN concentrator connection, removing the CA Gen RSA Key and reapplying it. Nothing works. Although if I reset the concentrator sometimes the sites reconnect themselves back. The only way to fix the problem is to go into the PIX and change the public ip address of the concentrator to the other concentrator and then they connect right up.


I have looked in the filterable log file of the concentrator and the only thing I can find is this:


31668 10/08/2008 09:51:19.510 SEV=4 IKE/41 RPT=11983 XXX.XXX.XXX.XXX

local Proxy Address 192.168.0.0, remote Proxy Address 192.168.109.0,

SA (L2L: Louisburg)


31679 10/08/2008 09:52:12.000 SEV=4 IKE/41 RPT=11984 XXX.XXX.XXX.XXX

IKE Initiator: New Phase 1, Intf 2, IKE Peer XXX.XXX.XXX.XXX

local Proxy Address 192.168.0.0, remote Proxy Address 192.168.109.0,

SA (L2L: Louisburg)

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