ZyXEL Communications P-334WT Support Notes page 124

Filter Example
A filter for blocking a specific MAC address
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 P-334WT you can identify
the uninteresting MAC address from the P-334WT'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 P-334WT.........
ras> sys trcp sw off
ras> sys trcp disp
TIME: 37c060
0000: [00 a0 c5 01 23 45]
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
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
enet0-RECV len:74 call=0
[00 80 c8 4c ea 63]
enet0-XMIT len:74 call=0
08 00 45 00