Netopia 435 Reference Manual page 74

NAT models only
Select Exported Services. The Exported Services screen
appears with three main headings, Show/Change Exports,
Add Export, and Delete Export.
(Local Port to IP Address Remapping)
Select Add Export. The Add Exported Services screen appears.
Add Exported Services
Service...
Local Server's IP Address:
ADD EXPORT NOW
Exported Services
Show/Change Exports...
Add Export...
Delete Export...
0.0.0.0
CANCEL
IP Setup 4-9