1752 and 1754 SHDSL Router User’s Guide
Specify the start and end of the port range for the TCP/UDP protocol that you want to filter. Then select TCP or UDP protocol from the Protocol
allow or block outbound traffic. Click on. The Firewall Port Filters page is displayed, containing details of the TCP port filter that you have just added.
•For a
Specify the protocol number in the Transport Type text box. For example, for IGMP, enter protocol number 2. Then use the Direction
allow or block inbound traffic, and allow or block outbound traffic. Click on . The Firewall Port Filters page is displayed, containing details of the IP port filter that you have just added.
2.Each port filter displayed in the Firewall Port Filters page has a Delete hyperlink assigned
to it. To delete a port filter, click on this link, then at the confirmation page, click on . The port filter is removed from the Firewall configuration.
Configuring validators
A validator allows or blocks traffic based on the source and destination IP address and subnet mask. Traffic will be allowed or blocked depending on the validator configuration specified when the policy was created. See the Configuring Firewall Policies section. This section assumes that you have previously followed the instructions in that section.
To configure a validator:
1. From the Current Firewall Policies table, click on the Host Validators link for the policy that
June 2005 | 59 |