Port forwarding failing. Here is the info:
1. I have a remote client (too far away to visit) who needs port 8400 forwarded to a local workstation for remote users.
2. They have their ISP's DSL (I think it's a 2wire model) set up as a router (DHCP issuing LAN IP addresses on 192.168.2.xxx). No local clients are using this except...
3. ...They have a cable coming out of the ISP's lan port to the WAN port of a Linksys router.
4. The Linksys router has a WAN IP of 192.168.2.10 and works fine - everyone connected to the Linksys is getting on the Internet.
5. The Linksys DHCP is issuing IP's on 192.168.1.xxx. (Not sure why they have this particular router-to-router setup)
6. To make port forwarding work, on the ISP's router I forward port 8400 to the Linksys WAN IP (192.168.2.10). On the Linksys, I also forward 8400 to the IP address of the desired workstation 192.168.1.105.
I cannot communicate over port 8400. I've done this before with another client and it was as smooth as silk. What am I missing?
Thanks for any help.