Cisco error messages

[Chronictank]

Could someone please explain to me what the following error code's mean, and when they occur as they seem to be compeltely random in the logs:

IKE/136 RPT=80 10.x.x.x Group [ServiceName] User [username] IKE session establishment timed out [AM_WAIT_DELETE], aborting!


Also am i right in assuming this is when a client times out?

IKE/123 IKE lost contact with remote peer, deleting connection (keepalive type: DPD)


And finally this one:

IKE/131 Recieved unknown transaction mode attribute

Anyhelp would be much appreciated
Thanks in advance

 

[Chronictank]

Yeah its for a VPN concentrator but i cant find anything regarding the actual messages,
basically i am writing a script to parse logs and throw out various statistics and session information
But i cant find a source for what sepcific error codes actually mean so its pretty much been try and break something and see an effect in the logs
Those are the ones i am stuck on as they are in the logs but i am unable to re-create the senarios
Thanks for the help so far

 

[Chronictank]

thanks for all your help