ZyXEL Communications P-660R-T1 Support Notes page 72

- Flags: May be fragmented, Last fragment, Offset=0 (0x00)
- Time to live: 32 seconds/hops
- IP protocol type: ICMP (0x01)
- Checksum: 0xE3EA
- IP address 202.132.155.93 (Source IP address) ---->
202.132.155.99(Destination IP address)
- No option
+ Internet Control Message Protocol
- Type: 8 - Echo Request
- Code: 0
- Checksum: 0x455C
- Identifier: 768
- Sequence Number: 1280
- Optional Data: (32 bytes)
Configurations
From the a bove first trace, we know a client is trying to ping request the P-660 ro
And from the second trace, we know the P-
accordingly . The following sample filter will utilize the 'Generic Filter Rule' to bl
the MAC a ddress [00 80 c8 4c ea
1. First, fro m the incoming LAN packet we know the uninteresting source MAC
address sta rts at the 7th Octet
TIME: 37c060 enet0-RECV len:74 call=0
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
2. We are now ready to configure the 'Generic Filter Rule' as below.
Men u 21.1.1 - Generic Filte
Filter #: 1,1
Filter Type= Generic Filter Rule
Active= Yes
Offset= 6
Length= 6
Mask= ffffffffffff
Value= 0080c84cea63
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660 router will send a reply to the client
63].
[00 80 c8 4c ea 63] 08 00 45 00
r Rule
P-660 series Support Notes
uter.
ock
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