A little bit of background first:
I have a web server running a team web application on a LAN at work (local IP not accessible from outside, only LAN)
IT in my company does not allow a machine name on the DNS for apps that are for such a limited number of users nor does it allow static IP for that same reason.
So, because of the O'mighty powerful IT in my company and because IP of the server changes every 4 hours I would like to create an alias on the Internet using mydomain.com that would redirect LAN users to the LAN Web Server. A script will be responsible for updating the LAN IP infor on mydomain.com anytime it changes. Services like DynDNS don't work cause they get blocked by IT department by the way.
The benefit for the LAN users is that they could then bookmark: teamapp.mydomain.com and that would resolve to dynamic LAN IP of Web Server running the team application on the LAN.
I tried using the META TAG REFRESH but as I suspected the browsers search for that redirectional IP on the Internet instead of the LAN so I get a time out error since that IP does not exist on WAN.
How can I tell the browser to search for that redirectional IP on the LAN rather than on Internet?