Packet structure

+-------------------------+
|        Direction        |
|        (1 Octet)        |
+-------------------------+
|         Payload         |
.                         .
.                         .
.                         .

Description

The direction field contains a value that is one of:

• 0, if the packet was received by the machine;
• 1, if the packet was sent by the machine.

The payload is either an IP packet or a compressed packet as per RFC 1144, without framing and byte-stuffing.