Displaying my ip in areas (i know securety crap :P)

[pyro.699]

ok, i want to place a link on my forum, to a site, that i use offline, how do i set it up so it looks like this

<a href="my ip/php_testing/test/homepage/index.php">Test Homepage</a>

now, i would just put my ip in, but, sadly enough, i ahve dialup, so every time i connect i geta new ip, id like ti to refresh my ip each time i log on ^^

and when i log off, the link is gone