Hello, I am the admin for a small company, we host about 20 servers for development and internal applications, and 4 servers for web hosting and external application hosting for clients. I started here two years ago and when I started we had one server and hardly any networking equipment at all. I was pretty new to Cisco and after talking to some reps they talked us in to getting an ASA5505 instead of a router. I have enjoyed learning about this device over the past year, but it's not exactly a perfect fit, I think what we really needed was a true router but I have made it work thus far. Since we have started growing and adding servers so quickly we have moved to a larger office, and now I have the task of splitting the network and organizing everything for further growth. I thought this would be a simple task but with the ASA I have not been able to get my networks to talk to each other correctly. What I want to do is pretty straight forward but I have no access to a true router, nor do I have any layer 3 swiches/managed switches, just plain ole dummy switches. Right now the ASA is handling all routing and VPN traffic and with out having to spend any money, I would like to split up my networks. I'm not very well versed in this area, I don't understand every aspect of subnetting but reading about it hasn't really helped me much either.
What I want to do is, with out using a VLAN, I have 10.0.0.0 network which is working fine, 10.0.1.0 is VPN and is also working fine, but I want to add 10.0.2.0 and 3 4 and 5 and so on as I need them. I have been able to add these, and get everything to work, but for some reason I cannot access any of these networks from the 10.0.0.0 network, which might not be a big deal until I start moving things around, then it's going to be a head ache. I am able to get on the internet with my test machines, I am able to access servers and other resources on the 10.0.0.0 network from these, except my domain controller, I have not been able to get any machines to join the domain on 10.0.0.0 yet. However I also cannot RDP to any server on the 10.0.5.0 network from the 10.0.0.0 It is resolving names from WINS, and things like that, but still a few things that I'm missing. I have attached my current config and will be working on this until I get it figured out, please any help you can give would be appreciated.