ZyXEL Communications Prestige 2302RL Support Notes page 48

1. The outbound packet type (the protocol and port number)
2. The source IP address
Generally, the outbound packets for a web service could be as follows:
a. HTTP packet, TCP (06) protocol with port number 80
b. DNS packet, TCP (06) protocol with port number 53 or
c. DNS packet, UDP (17) protocol with port number 53
To block web services on all LAN hosts, enter 0.0.0.0 for the source IP address. Otherwise enter the IP address
of a LAN computer to block web services for that computer. The configuration procedure is described below.
o Create a filter set in SMT menu 21, for example, set 1
o Create three filter rules in menu 21.1.1, 21.1.2, and 21.1.3
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

o
Apply the filter set in menu 4
1. Create a filter set in menu 21
Filter
Set # Comments
------ -----------------
1 Web Request
2 _______________
3 _______________
4 _______________
5 _______________
6 _______________
Enter Filter Set Number to Configure= 1
Edit Comments=
Press ENTER to Confirm or ESC to Cancel:
Rule 1- block the HTTP packets, TCP (06) protocol type with port number 80
Rule 2- block the DNS packets, TCP (06) protocol type with port number 53
Rule 3- block the DNS packets, UDP (17) protocol type with port number 53
Menu 21 - Filter Set Configuration
All contents copyright (c) 2007 ZyXEL Communications Corporation.
Prestige 2302RL Support Notes
Filter
Set # Comments
------ -----------------
7 _______________
8 _______________
9 _______________
10 _______________
11 _______________
12 _______________
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