Bridge ISDN and Wireless

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My ISDN Router is a Duxbury with a ISDN port and then a single LAN port. It has DHCP built-in and you can assign its own IP address. Functionality includes all normal IP routing.



My Wireless Access Point is an LG (LWG5404R) and has wireless and 4 Lan ports and a WAN port (mainly for ADSL and Cable). It also has DHCP (required for wireless ports) and normal IP routing functionality.



I have been unable to get the ISDN router to work on the WAN port so I would like to have it running on the lan side. If I use ISDN router as dhcp then no IP's are assigned on wireless network - if I have DHCP enabled on Wireless then it does not make the ISDN the default gateway.



So the idea was to have them on seperate subnets / ip ranges and then bridge or route across for internet access.



How can I do this - if it will help I can send screen shots of setting on bothe devices.



Any suggestions or assistance would be appreciated.