ZyXEL Communications P-2302R-P1 - Manual (Page 29)

P2302R-P1 Support Notes
All contents Copyright

2007 ZyXEL Communications Corporation.
29
This configuration example shows you how to use a Generic Filter to block a specific MAC address of the
LAN.
Before you Begin
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 ZyXEL Device you can identify the
uninteresting MAC address from the ZyXEL Device'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