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From: James Jhai <james@idea-anvil.net>
To: freebsd-questions@freebsd.org
Date: Sun, 9 Jan 2005 06:56:09 -0700
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cc: FreeBsdBeni <freebsdbeni@spymac.com>
Subject: Re: ip address behind router ?
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On Sunday 09 January 2005 06:38 am, FreeBsdBeni wrote:
> Hi,
> 
> How do I find what ip address I'm really having ? 
> My adsl modem/firewall gives me a dynamic private address : 192.168.1.101, 
> which is what I see with an ifconfig. But how do I find the real (dynamic) 
> address given to my modem by my provider ?
> I'm using 5.3-rel-p4.

Most adsl gateways/modems have a web based configuration system, you should be able to access it from:

http://192.168.1.1:80/ 

Look over the options and see if there is a "status" section, this will more then likely have the info you want.

You really should get a static ip from your isp if you are going to be running a server, better would be a small block of them.
You will also need to setup a static network and forward any ports from the dsl gateway to your freebsd box if you want to be able to access any services you are going to run. 
-- 
- James