IP Filter Rule
By default the router is shipped with certain ports open and it
is important to close or stealth them if they are not being used.
These ports are :-
||(DNS) see below
The following example shows you how to stealth your telnet port.
You should repeat the following steps with each of the above
ports using a new "Rule ID" number for each rule you
|BT Voyager 205
IP Filter >>
Click the submit button then make sure the IP Filter
config is set as:-
submit the changes then commit the changes in the
It is also recommended that you disable UDP 53 incoming
to prevent your router being used as an open
recursive DNS server. When enabled the rule should look something
To stealth all ports see the next page.