S2S VPN concentrator tunnel dis connecting and establishing frequently

[santoshvijapur]

Hi All,

VPN concentrator VPN tunnel dis connecting and establishing  frequently , below are the debug logs . please sugget possible cause .

26267 06/03/2010 13:38:38.780 SEV=5 IKE/50 RPT=53900 x.x.x.x
Group [x.x.x.x]
Connection terminated for peer x.x.x.x
Reason: Peer Terminate
Remote Proxy 10.200.256.x Local Proxy 10.201.45.x

[Jennifer Halim]

Base on just the 1 log, the reason is peer terminated the connection.

You would need to turn on the debugging on the vpn concentrator for IKE, IKEDBG, IKEDECODE, IPSEC, IPSECDBG and IPSECDECODE class to be able to further investigate the issue.

What is the other site of the VPN tunnel? ASA/PIX or IOS router? If it is one of those devices, you might want to turn on the following debugging and collect the output:

debug crypto isa

debug crypto ipsec

[santoshvijapur]

Dear Halijenn,

run the debug and found  lifetime not matching , corrected the same, tunnel is stable. thanks for your help