D-Link DSL-2640B User Manual page 41

Section 4 - Troubleshooting
OUTBOUND IP FILTER
By default, all outgoing IP traffic from the LAN is allowed. The Outbound Filter allows you to create a filter rule to block outgoing IP traffic by
specifying a filter name and at least one condition below. All of the specified conditions in this filter rule must be satisfied for the rule to take effect.
To access the OUTBOUND IP FILTER setting window, click on the Outbound Filter button in the ADVANCED directory.
D-Link DSL-2640B User Manual 41