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Chapter 5: Configuring the Router
The Security Tab - Filter
EtherFast Cable/DSL Router with 4-Port Switch
Filter Multicast. Multicasting allows for multiple transmissions to specific recipients at the same time. If
multicasting is permitted, then the Router will allow IP multicast packets to be forwarded to the appropriate
computers. Select Enabled to filter multicasting, or select Disabled to allow multicasting.
Filter Internet NAT Redirection. This feature uses port forwarding to block access to local servers from local
networked computers. Select Enabled to filter Internet NAT redirection, or select Disabled to allow Internet NAT
redirection.
Filter IDENT (Port 113). This feature keeps port 113 from being scanned by devices outside of your local
network. Select Enabled to filter port 113, or select Disabled to allow port 113 to be scanned by devices on the
Internet.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. Help information is shown on the right-hand side of the
screen. For additional help, click More.