ISA Packet Information

Hi List,

 

I am doing a packet capture on a workstation that is connecting to MS-ISA 2004 server. When doing the capture I have noticed that there are 14 bytes added to the packet before the IP header starts. I have done some googling and have not had much luck finding out what those 14 bytes are. I have also converted the hex to dec and what I am getting is junk because I am not sure what the different fields mean and not making sense to my environment. I am know that the packets contain information about the proxy server, I just want to know what that information is. So I thought I would ask the list if anyone can point me to documentation that explains what those 14 bytes are. Any help would be greatly appreciated.

 

TIA,

RWP