problem with setting up webserver in Lan (behind firewall)

Hi:

I have a hardware firewall( Firebox Soho 6) in LAN (ip: 192.168.1.254), it is connected to ethernet ADSL (Diva 2440) (ip 192.168.2.2), the whole LAN connect to Internet through the ADSL router by using gateway : 192.168.1.254. It seems no proxy server.

This ADSL router also have NAT function. now I want to set up a web server(IIS 5.1) or ftp server in a computer (ip: 192.168.1.10) in LAN. Do I neet to do port forwarding in Firewall or ADSL or both?, now I only do port forwarding in Firewall, I have opened the port 80 and 21.

In the computer (192.168.1.10), I type: http//192.168.1.10 or http://127.0.0.1, I can see my webpages, but I key in : http://www.XXX.com(my domain name), then it display ADSL configuration webpage. I type http://www.XXX.com(my domain name) in my home computer (outside LAN), it also display ADSL configuration webpage, what's going on ? but I can use ftp connect to the ftp server ftp://XXX.com(my domain name ), for FTP, the only problem is I cann't connect to the FTP server using Passive mode, How can I solve this problem?

Thank you for your reply.

Have a nice day!
hongyan@yifan.net

If I understand you correctly.

You have a Firewall with IP 192.168.1.254, that connects to

DSL Router with 192.168.2.2, that connects to

LAN computers with 192.168.1.10

So firewall is outside your netwrok ? between the DSL and cable coming in to your network ? Where ?

Need a bit more clarification on your route tables.

However, if your able to use 127.0.0.1 (localhost) and see your pages, but not domainname.com, you have a route issue. Probable in the Firewall or DSL, assuming one or the other is routing. ??

Are you using a HUB or switch, or switch/hub built into the DSL router. ??