I know I'm a little late, but if you were trying to redirect someone's browser, there are basically a few ways to do it. Posters before me indicated some of them, while there are still other ways to do it.

For instance, if you had access to Workstation A's host file, you could set a random website (such as google) to direct to another page.

I've had another problem with my Belkin Wireless router. The router would intercept a port 80 request every 8 hours and display their parental control ad page (much to my annoyance). I found out since, one has to turn this "feature" (in Belkin's words) off in parental controls, but as you can imagine, this was VERY unnerving especially if you were in the middle of, say, a credit card transaction or online homework. Makes you think what other kind of information Belkin intercepts, what they send to whom (maybe your web usage statistics in the best case scenario), etc...

That's all I got, hope you're not using Belkin (for anything important).

-ik

P.S. thanks shell_coder for the excellent link