Netopia Firmware 4000-Series - Manual (Page 260)

10-36 Firmware User Guide
Note:
Default Forwarding Filter
If you create one or more filters that have a matching action of for ward, then action on a packet matching none
of the filters is to block any traffic.
Therefore, if the behavior you want is to force the routing of a cer tain type of packet and pass all others through
the normal routing mechanism, you must configure one filter to match the first type of packet and apply Force
Routing. A subsequent filter is required to match and for ward all other packets.
Management IP traffic
If the Force Routing filter is applied to source IP addresses, it may inadver tently block communication with the
router itself. You can avoid this by preceding the Force Routing filter with a filter that matches the destination IP
address of the router itself.
Add Input Filter
Enabled: Yes
Forward: Yes
Call Placement/Idle Reset: No Change
Force Routing: Yes
Gateway IP Address: 127.0.0.3
Source IP Address: 0.0.0.0
Source IP Address Mask: 0.0.0.0
Dest. IP Address: 0.0.0.0
Dest. IP Address Mask: 0.0.0.0
TOS: 16
TOS Mask: 16
Protocol Type: ANY
ADD THIS FILTER NOW CANCEL
Return/Enter to add this Filter to the Filter Set.
Enter the packet specific information for this filter.