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vyelmene
Beginner

%CRYPTO-6-IKMP_MODE_FAILURE: Processing of Informational mode failed with p

Has anyone ran across this error message: %CRYPTO-6-IKMP_MODE_FAILURE: Processing of Informational mode failed with peer at x.x.x.x? I've seen similar ones, but not the 'informational' mode. I'm also getting this message; ISAKMP (1): sending packet to x.x.x.x (I) MM_NO_STATE.

Any help would be great.

Thanks.

10 REPLIES 10
vyelmene
Beginner

Disregard, I have fixed my problems.

How did you fix it? I´m getting the same error on a Dual Hub Single Layout DMVPN even if I copy paste the same crypto info in all my hubs and spokes.

HI , please help me out with the solution. I am working on an office project and implemented cluster dmvpn. Though the tunnel is up, i keep getting this message.

plz help !

Please help me with the solution.

Hey check your policies and especially the keys on both sides, its probably because something is not matching.

all keys are the same. the hub is not displaying isakmp is on when applied to interface

As others have mentioned, double check that your keys and transform sets are matching on both ends.

 

During after hours try running debug crypto ipsec

what was the fix? i have the same issue too

arpgaur
Cisco Employee

Run  sh crypto isakmp sa to check if the phase 1 tunnel is up.

 

this message has more to do with the phase -2 tunnel. once the first one is checked check the phase 2 tunnel. 

 

start a ping from host A to host B

run >> #sh crypto ipsec sa. And check if we're getting any packets encrypted/decrypted. my bet would be, you won't see any packet being encrypted.

 

now, run> sh crypto map for routers on both the ends and check if we have the correct configuration on both the devices, and by that, I mean.

 

1> peers IP are correct (common issue)

2> ACL's are correct, both routers are correct identifying the source and destination IP (most common issue)

3> crypto map is applied on the correct interface.

 

it's basically a configuration mismatch and a closer look should resolve this issue.

 

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