ZyXEL Communications 2304R-P1 manual Configurations, Prestige 2304 Support Notes

Prestige 2304 Support Notes

+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

-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 above first trace, we know a client is trying to ping request the Prestige router. And from the second trace, we know the Prestige router will send a reply to the client accordingly. The following sample filter will utilize the 'Generic Filter Rule' to block the MAC address [00 80 c8 4c ea 63].

1. First, from the incoming LAN packet we know the uninteresting source MAC address starts at the 7th Octet

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

2. We are now ready to configure the 'Generic Filter Rule' as below.

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