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Intermittent VPN connection failure

I have a 3000 VPN concentrator, running version 3.6.7.8, and WIN XP clients running ver 3.6.3. Occasionally when connecting to the VPN, after the user has typed in the VPN USER/PASS and the Win USER/PASS, the connection is dropped immediately. Looking at the Log on the concentrator shows:-

13685 08/25/2005 08:58:36.580 SEV=4 IKE/52 RPT=7692 213.205.221.244 Group [VPN-MM] User [markh] User (markh) authenticated

13686 08/25/2005 08:58:36.630 SEV=4 IKEDBG/65 RPT=9462 213.205.221.244 Group [VPN-MM] User [markh] IKE TM V6 FSM error history (struct &0x43ba2b4) , : TM_DONE, EV_ERROR TM_BLD_REPLY, EV_IP_FAIL TM_BLD_REPLY, NullEvent TM_BLD_REPLY, EV_GET_IP

Once the connection has failed once, it continues to fail, we are using ACS to authenticate against, and the error can be cleared by changing the IP type from static to dynamic on the ACS server. This will then work for a while then fail again further down the Line.

Any one have any ideas?

1 REPLY
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Re: Intermittent VPN connection failure

Configure a static IP for each VPN user using local authentication.

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