Re: dynamic ip address - how to get to know my ip address?

From: David Efflandt (efflandt_at_xnet.com)
Date: 07/06/03 

Date: Sun, 6 Jul 2003 15:01:57 +0000 (UTC)

On Sun, 6 Jul 2003 16:16:51 +0200, Johannes Lebek <joh.lebek@SgPmAxM.de> wrote:
> Hi there,
>
> my ISP provides me with a dynamic ip address. I'm using a wireless LAN
> router made by SMC to connect to the internet. I want to get to know the
> public ip address from a computer that is located in the local network
> behind the router's firewall. But, of course, the router's NAT replaces the
> public ip address with the local one.
>
> How do I get to know the public ip address the ISP gave me?

There are various dynamic DNS services (web search for 'dns hosting'). I
use no-ip.com. They have Windows and Unix clients that can run in the
background so they can periodically grab your connecting internet IP.
Although, I hacked my Dlink gateway firmware so I can monitor its
WAN IP from its login page with a Perl LWP script without having to login,
and just update DNS when necessary.

I also have a wireless SMC router, but it has hardware/firmware problems
that make it not worth messing with.

Another option, if you have an internet web host somewhere, is to write
your own CGI that you tickle with wget occasionally and stores your IP in
a file you can access from anywhere. But it is simpler in the long run to
use dynamic DNS (so you can configure clients for a fixed name). 

-- 
David Efflandt - All spam ignored  http://www.de-srv.com/
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