ZyXEL Communications P-660 series - Page 61

P-660 Series Support Notes
Before you configure the filter, you need to know the MAC address of the client first.
The MAC address can be provided by the NICs. If there is the LAN packet passing
through the P-660 you can identify the uninteresting MAC address from the P-660's
LAN packet trace. Please have a look at the following example to know the trace of
the LAN packets.
ras> sys trcp channel enet0 bothway
ras> sys trcp sw on
Now a client on the LAN is trying to ping Prestige………
ras> sys trcp sw off
ras> sys trcp disp
TIME: 37c060 enet0-RECV len:74 call=0
0000: [00 a0 c5 01 23 45] [00 80 c8 4c ea 63] 08 00 45 00
0010: 00 3c eb 0c 00 00 20 01 e3 ea ca 84 9b 5d ca 84
0020: 9b 63 08 00 45 5c 03 00 05 00 61 62 63 64 65 66
0030: 67 68 69 6a 6b 6c 6d 6e 6f 70 71 72 73 74 75 76
0040: 77 61 62 63 64 65 66 67 68 69
TIME: 37c060 enet0-XMIT len:74 call=0
0000: [00 80 c8 4c ea 63] [00 a0 c5 01 23 45] 08 00 45 00
0010: 00 3c 00 07 00 00 fe 01 f0 ef ca 84 9b 63 ca 84
0020: 9b 5d 00 00 4d 5c 03 00 05 00 61 62 63 64 65 66
0030: 67 68 69 6a 6b 6c 6d 6e 6f 70 71 72 73 74 75 76
0040: 77 61 62 63 64 65 66 67 68 69
The detailed format of the Ethernet Version II:
+ Ethernet Version II
- Address: 00-80-C8-4C-EA-63 (Source MAC) ----> 00-A0-C5-23-45
(Destination MAC)
- Ethernet II Protocol Type: IP
+ Internet Protocol
- Version (MSB 4 bits): 4
- Header length (LSB 4 bits): 5
- Service type: Precd=Routine, Delay=Normal, Thrput=Normal, Reli=Normal
- Total length: 60 (Octets)
- Fragment ID: 60172
60
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