User's Manual

66xx/67xx Router Users Guide 88
IP Filtering
IP filters provide the mechanism for white listing (only defined xxxx are allowed) or blacklisting
(only defined xxxx are blocked) on ingress (IN) or egress (OUT) of an interface.
Some models use the Firewall screen. Others use the IP Filtering, Outgoing or Incoming screens.
The filter type (Outgoing interface blocking in this example) is defined in the firewall rule.