Router solutions for merging two networks
Posted on 2005-04-12
Here is my situation.
Dept A of my company looks like the following
INTERNET ---------- Router (2600) ------- PIX (515) -------- Frame Router (1720) ---------- 2 2950 Switches
Site A Site B
INTERNET ----------- CABLE MODEM --------------- Store bought switches (hubs really).
I want to move Dept B to Dept A's 2950 switches and separate the networks via Vlans. No problems there, that is easy enough. Dept B would also like to keep its Cable Connection, and point everyone in Dept B out the Cable Modem to get access to the Internet. Everyone in Dept A will still go out the Internet Router.
I needs suggestions on possible solutions. The only one I can come up with is to buy a better router inside the PIX for the Frame Connection, but to also have an interface that goes out the cable side as well (any suggestions on a good router for this, and I'm all ears).
Of course, the issue with this is that the PIX isn't protecting Dept B. Can I use another interface on the PIX and have it attached to the cable modem? I know I'd have to watch out for Nat in this case.
I'm open to discussion/suggestions. Look forward to hearing what all you have to say.