run website in local LAN

hi ,
I want to run my website in our LAN by giving IP address in url or by any other way.
So that we can test our website locally before uploading.

e.g.
When I run my website on my own machine, It generates following url.
"http://localhost:2045/DemoSite/Default.aspx"

please tell how to do this, what steps should i follow, is there any IIS configuration.

Any suggstion would be most appreciable

thank you.
Regards ujjwal ...