Problems intermittent tunnel

On one of our IOS - IOS tunnels, the isakmp seems corrupt itself from time to time, causing the tunnel to close.

See the "BOLD" newspaper (debug crypto isakmp) text:

017975: 25 Oct 10:03:32.702 THIS: % CRYPTO-6-ISAKMP_ON_OFF: ISAKMP is running

017976: 25 Oct 10:03:34.698 THIS: % LINK-3-UPDOWN: Interface Tunnel0, changed State to

017977: 25 Oct 10:03:47.110 THIS: ISAKMP: (0): profile dmvpn_spokes_isakmp ignored because of the incompatibility of the VRF *.

017978: 25 Oct 10:03:47.110 THIS: ISAKMP: (0): did you put good FVRF in the command 'is the id of the ip address?

017979: 25 Oct 10:03:47.110 THIS: ISAKMP: (0): deletion of 'Initial of receive Contact' State HIS reason (I) MM_NO_STATE (peer [REMOTE_IP])

017980: 25 Oct 10:03:47.110 THIS: ISAKMP: (0): deletion of 'Initial of receive Contact' State HIS reason (I) MM_NO_STATE (peer [REMOTE_IP])

017981: 25 Oct 10:03:47.138 THIS: ISAKMP: (1041): IPSec policy invalidated proposal with error 32

017982: 25 Oct 10:03:47.138 THIS: ISAKMP: (1041): politics of ITS phase 2 is not acceptable! ([LOCAL_IP] remote local [REMOTE_IP])

017983: 25 Oct 10:03:47.138 THIS: ISAKMP: (1041): error suppression node 570435705 REAL reason "QM rejected."

017984: 25 Oct 10:04:02.726 THIS: ISAKMP: (1041): IPSec policy invalidated proposal with error 32

017985: 25 Oct 10:04:02.726 THIS: ISAKMP: (1041): politics of ITS phase 2 is not acceptable! ([LOCAL_IP] remote local [REMOTE_IP])

Now, it is really strange, since _no_ configuration has been changed on each side.

Even more strange - closing/compensation/reiniting immediately gives just the same error. However, if we keep the tunnel closed for awhile ifaces (about 5 minutes for example), tunnel back upward.

Could it be because of something cached outwardly somewhere along the road?

Is there maybe a delay on one of the routers that can be reset that I'm not aware of?

IOS bug (v12.4 (1r))?

Jorn,

For me, it looks like a problem with the isakmp profile.

I'm not sure that you need to set the ivrf on profile, as long as you ivrf on the tunnel interface. I would need to do a laboratory test - seems pretty easy to reproduce.

I'll be there for the next 10 days, what I would suggest is to open a service request and specify this thread as a reference.

Marcin

Tags: Cisco Security

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