We have an office which has an SBS 2008 box which assigns addresses in the 192.168.42.x range to wired clients.
The directors have decided to lease an empty office out to generate revenue and promised internet access for the sub company part owned by the director. They will connect using the wired point in their room routed down to our switch and ADSL router.
Is it possible to give them an IP address which would enable only internet access and not access to the server? My knowledge of IP addressing is very minimal.