Packet Traces
Here is received packet content shown from Penumbra on stdoutUDP Thread: Received 49 bytes
0000: 50 65 6E 75 6D 62 72 61 50 61 63 6B 65 74 3A 2D PenumbraPacket:-
0010: 29 20 4C 41 50 54 4F 50 20 34 36 34 38 37 30 20 ) LAPTOP 464870
0020: 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D
0030: 2D -
and the received packet seen from tcpdump with -X
13:56:57.378047 IP (tos 0x0, ttl 1, id 248, offset 0, flags none, proto: UDP (17), length: 77) 0.0.0.0.61441 > 255.255.255.255.61442: udp sum ok UDP, length 49
0x0000: 4500 004d 00f8 0000 0111 b8a9 0000 0000 E..M............
0x0010: ffff ffff f001 f002 0039 bb38 5065 6e75 .........9.8Penu
0x0020: 6d62 7261 5061 636b 6574 3a2d 2920 4c41 mbraPacket:-).LA
0x0030: 5054 4f50 2037 3833 3738 3720 2d2d 2d2d PTOP.783787.----
0x0040: 2d2d 2d2d 2d2d 2d2d 2d2d 2d2d 2d
and with -XX (link level headers too)
13:57:41.299824 IP (tos 0x0, ttl 1, id 33017, offset 0, flags none, proto: UDP (17), length: 77) 0.0.0.0.61441 > 255.255.255.255.61442: udp sum ok UDP, length 49
0x0000: 1122 3344 5566 1122 3344 5566 0800 4500 ."3DUf."3DUf..E.
0x0010: 004d 80f9 0000 0111 38a8 0000 0000 ffff .M......8.......
0x0020: ffff f001 f002 0039 bf36 5065 6e75 6d62 .......9.6Penumb
0x0030: 7261 5061 636b 6574 3a2d 2920 4c41 5054 raPacket:-).LAPT
0x0040: 4f50 2037 3835 3938 3120 2d2d 2d2d 2d2d OP.785981.
0x0050: 2d2d 2d2d 2d2d 2d2d 2d2d 2d
Here is the packet captured by tcpdump on the sending box, you can see the MACs are replaced
14:00:56.310673 54.0 Mb/s 2417 MHz (0x00c0) 11:22:33:44:55:66 (oui Unknown) Null > 11:22:33:44:55:66 (oui Unknown) SNAP Information, send seq 48, rcv seq 0, Flags Command, length 57
0x0000: 0000 0e00 0e00 0000 006c 7109 c000 0801 .........lq.....
0x0010: 0000 1122 3344 5566 1122 3344 5566 1122 ..."3DUf."3DUf."
0x0020: 3344 5566 0000 aa00 6000 0000 0060 5065 3DUf....`....`Pe
0x0030: 6e75 6d62 7261 5061 636b 6574 3a2d 2920 numbraPacket:-).
0x0040: 4c41 5054 4f50 2037 3837 3731 3620 2d2d LAPTOP.787716.--
0x0050: 2d2d 2d2d 2d2d 2d2d 2d2d 2d2d 2d2d 2d
Created by admin. Last Modification: Wednesday 24 of January, 2007 16:04:09 GMT by admin.
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