I've been doing a lot of reading, and it appears very possible, I just want to put it out there to reassure me before I go ahead with it.
I have a client that has two separate business in the same office. Company 1 just upgraded to a 12MB Internet Connection and VOIP Phones, Company 2 is going to share the internet connection and phones.
Before this, they each had their own DSL lines.
Company 1 has a Windows 2003 SBS, domain controller, running DNS but a router is doing DHCP.
Company 2 has a Windows 2003 Standard Server, domain controller, also doing DNS but their router is also doing DHCP.
Company 2 is only 4 users.
They do want to keep their domains (relatively) separate.
Can I put both servers on the LAN, same IP addressing, using one router, and statically assigning Company 2 PCs static addresses, gateway, and DNS (pointing to their server) without interfering with the other domain server? Still having all users log into their respective domains?