Netopia 2200 manual 161

Firewall Tutorial

•Source IP Address = 199.211.211.17

•Source IP address mask = 255.255.255.255

•Destination IP Address = 0.0.0.0

•Destination IP address mask = 0.0.0.0

•Using the tables on page 158, find the destination port and protocol numbers (the local Telnet port):

•Protocol = TCP (or 6)

•Destination Port = 23

•The filter should be enabled and instructed to block the Telnet packets containing the source address shown in step 2:

•Forward = unchecked

This four-step process is how we produced the following filter from the original rule:

161