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VPN Forum Technical
Topic: VPN PACKET STRUCTURE [New Topic]  [New Reply]
 Author  Message
dendude
Member since:
2004-11-25 05:21:06
  posted: 2004-11-25 06:23:55
VPN Packet structure
----------
I have a vpn setup here. I am trying to look into the packets being sent across. Initially the packet sent from the client is an isakmp packet i guess. I have figured out the packet is a udp packet within a tcp packet with the source port and destination port as 500.
But i dont know what else figures in that packet.
I obtained the packet by performing a tcpdump.
I have figured out what lies in the first 56 bytes. The bytes after that i'm unsure what it contains
The packet structure is as given below

cookie: 7c34e6710ee2d48f->fa13ea4 82cc04e6a msgid: 08ba6e3f len: 68
4500 0060 69fc 0000 4011 ffd9 c0a8 47ce
c0a8 4798 01f4 01f4 004c 5aea 7c34 e671
0ee2 d48f fa13 ea48 2cc0 4e6a 0810 0501
08ba 6e3f 0000 0044 b908 292e c0a3 8861
3126 3497 ea51 c912 8f3f 2e6b a62a a31a
65cc

Can someone tell me what data is actually contained in this packet.

Thanks
 
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