[asp.net] How to display external site within a content

I couldn't find any where for this deadly simple request. All I want is display a website within a content in a master page but have no clue how to do this. And also want to remove all the information like address, so user knows nothing about which site and where they're redirected to.

The reason is that my company has many internal sites and I'm not the developer of those sites, so what I can do is put them together within one site.

Thanks for any reply.

re: [asp.net] How to display external site within a content

Perhaps use an <IFRAME>?