user manual

10-36 Administrator’s Handbook
In previous software versions, a filter would either pass or block the specified traffic. Motorola Netopia®
Embedded Software Version 8.7.4 adds a third option, force routing. You specify a gateway IP address, and
each packet matching the filter is routed according to that gateway address, rather than by means of the global
routing table.
In addition, the TOS field has been added to the classifier list in a filter. This allows you to filter on TOS field
settings in the IP packet, if you desire.
The new filterset screen appears as follows:
To use the policy-based routing feature, you create a filter that forwards the traffic.
• Toggle Forward to Ye s . This will display the Force Routing options.
• The Call Placement/Idle Reset setting is used to determine if a packet which matches the filter will cause
an “instant-on” link to connect, if it is down; or reset its idle timer, if it is already up.
If you select No Change from the Call Placement/Idle Reset pull-down-menu, a match on this rule will
keep the WAN connection alive by resetting the idle-timeout status.
If you select Disabled, a match on this rule will not reset the idle-timeout status.
For example, if you wanted ping traffic not to keep the link up, you would create a filter which forwards a
ping, but with the Call Placement/Idle Reset set to Disabled.
• Toggle Force Routing to Ye s.
• Enter the Gateway IP Address in standard dotted-quad notation to which the traffic should be forwarded.
• You can enter Source and Destination IP Address(es) and Mask(s), Protocol Type, and Source and
Destination Port ID(s) for the filter, if desired.
Change Input Filter 1
Enabled: Yes
Forward: Yes
Call Placement/Idle Reset: No Change
Force Routing: Yes
Gateway IP Address: 163.176.8.134
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: 0
TOS Mask: 0
Protocol Type: UDP
Source Port Compare... Equal
Source Port ID: 137
Dest. Port Compare... No Compare
Dest. Port ID: 0
Return/Enter to set comparison of packet Port ID and Filter Port ID.
Enter the packet specific information for this filter.