WAN-IP of router

[James McDonald]

If you on the private network behind the RT-N16 and you have some webspace
out on the internets.

Put a php script up on an internet server with the php code below and then
do a curl of it and then parse the REMOTE_ADDR variable and you have your
wan ip...

REMOTE_ADDR = 115.70.121.139

You could even get the PHP script to write the IP to a file and grab it off
the webserver from other locations.

I didn't google the specs but does the RT-N16 have a setting for dynamic
dns? Maybe create an account with a ddns provider and configure your router
to update the DDNS setting and then just dig the host name e.g. dig
yourhost.dyndns.org



 <?php
    foreach($_SERVER as $h=>$v)
        if(ereg('REMOTE_ADDR',$h,$hp))
                echo "$h = $v\n";
           header('Content-type: text/html');
?>

On 5 August 2010 17:59, Jorge Almeida <jjalmeida at gmail.com> wrote:

> Is there any sensible, script-friendly, way of finding my router's
> external (dynamical) IP? It looks surprisingly difficult, judging by
> Google results...
> The thing is an ASUS RT-N16. I intend to install dd-wrt, eventually,
> but for the time being it has the original software, which appears to
> be complete crap, BTW.
>
> Jorge Almeida
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