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Jacques77

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How do I configure a Mentor ADSL Router MR4A to allow access from the Internet to a PC connected to this router ?

My PC running a Linux web-server is connected to a Mentor ADSL Router MR4A at home.  When I'm at the office, I would like to access my PC using Internet Explorer, but I can only access the router on port 8080.
Additional information:
1) Home configuration:
- fixed LAN IP addr of the router: 10.1.2.100  Netmask: 255.255.255.0
- fixed LAN IP addr of the PC : 10.1.2.1  Netmask: 255.255.255.0
- WAN IP of the router: changes from time to time
2) Router configuration changes:
- I've tried PPPoA+NAT, then PPPoE+NAT, then Bridge mode, but I cannot see the PC with Port forwarding and Virtual servers:
- HTTP   Ext.port 80 to IP 10.1.2.1 Int.port 80 (enabled)
- FTP     Ext.port 21 to IP 10.1.2.1 Int.port 21 (enabled)
- HTTPS Ext.port 443 to IP 10.1.2.1 Int.port 443 (enabled)
- Telnet  Ext.port 23 to IP 10.1.2.1 Int.port 23 (enabled)
- FTP data Ext.port 20 to IP 10.1.2.1 Int.port 20 (enabled)
3) I can access the Admin pages of the router from Internet with http://<WAN IP addr>:8080/
and so can modify the configuration as needed from the office.
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dr_binks

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Jacques77

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Thankyou dr binks and rindi !

I am testing a setup to connect from the Internet to an Axis Video Server which serves 4 cameras using ADSL.  

dr binks:
The Linux platform is - I think - version 2.1.7 or something like that (the server model is an Axis 2400 v2.34 - see www.axis.com).  

rindi:
Thanks for the info: I will do just that !

So I can't really forward the netBIOS port (what port would it be ?)...

Jacques77
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Thankyou gentlemen !  What I ended up doing, was:

a) I enquired on the Internet for documentation about the Mentor router which I finally found, then applied dr binks' suggestion of port-forwarding (HTTP port 80);
b) I then created an account with DynDSS.org as rindi suggested, and now everything works fine.

In fact, my initial problem was that I had no documentation on this router - your suggestions came in handy after I got the router info. And I am now using DynDNS as a replacement of fixed-IP.

Gentlemen: thankyou ! :-))

Jacques
Thanx too, glad to help.