Sniffer traces for IKE

Hi people,

    A small request from a novice in security programming. Can somebody please send me sniffer traces for an IKE (both phase 1 and phase 2) session with "shared secret key" type, "public/private key" type and certificate type of authentication ? (I know that these will be hashed/encrypted using prf, but just want to see position of items in the packet). Are the payloads ASN1 objects for IKE ? 

I will be much obliged if I can lay my hands on real IKE packets as it will speed up my understanding. I am currently not developing anything but preparing for a project that will involve IKE on Linux and Windows platforms.

My apologies if this is a wrong list to post my requests. I would appreciate pointers to where I can look for such info.

Regards,

Madhu