RE: Getting past the NAT

[Frost Neil <Neil.Frost@xxxxxxx>]

You can add virtual servers / port forwarding.

Add entries in your router config. Normally you have an external port (eg
http://212.25.25.25:8080 the port
is 8080)
You can set this to map to an ip address and internal port that is
different
to the external e.g. 192.168.1.3 port 80

Eg connect to http://212.25.25.25:8080 this is set to
forward to internal
port 80 on 192.168.1.3 to go to your network camera.

Connect to  http://212.25.25.25 (which
is port 80 by default) set the
internal port to 80 to ip address 192.168.1.42 to get to you web server.

Hope that helps.

Neil



-----Original Message-----
From: Derek Erb [mailto:dce42@xxxxxxx]
Sent: 03 October 2003 12:28
To: ukha_d@xxxxxxx
Subject: [ukha_d] Getting past the NAT


I'm hoping this isn't considered OT...

I have worked with quite a few routers and firewalls.  I'm therefore
reasonably accustomed to NAT addressing.

Normally the only time I need to access a computer from the Internet
is for a bit of pcAnyWhere.  I therefore use the IP address of the
router as it is seen from the Internet and reconfigure the firewall
quickly to assign the internal IP address of the computer I want to
connect to (192.168.1.x) to the PCAW port and then I can connect
through to that computer.

In my new home I'm going to have several computers and applieances I
am going to want to connect to from the outside on the Internet
(network cameras (Axis), security alarm system, computers with web
cams, ...).

I am hoping to have a fixed IP address for my Internet connections
(ADSL & Cable).  But does anyone know how I can get past the net to
the specific machine I want?

To give a specific example:
Let's say my external IP address for my router is 212.25.25.25.
Behind the router I've got a network camera with 192.168.1.3, a web
server with 192.168.1.42 and a security alarm system with
192.168.1.69.

>From the Internet I can only see 212.25.25.25.  Can anyone tell me
some way that I can access the 3 machines which are behind the
router from the Internet?

Thank you in advance for any ideas or suggestions you may have.