Add IP Filter -- Outgoing The screen allows you to create a filter rule to identify outgoing IP traffic by specifying a new 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. Click 'Apply/Save' to save and activate the filter. Filter Name: Source IP address[/prefix length]: Source Port (port or port:port): Destination IP address[/prefix length]: Destination Port (port or port:port): filter NetBIOS: 137 138 137 and 138