I currently have a single network 192.168.1.0/24 and I am running out of IP addresses. I have a ASA 5505 connecting us to the outside world. I would like to be able to add a subnet say 192.168.20.0/24 on the same switches throughout the plant by just having a windows or linux based router with and IP on both networks. I have tried doing this with very limited success. I have a windows machine with two ips. One on 192.168.1.0/24 and one on 192.168.20.0/24 put a route to 192.168.20.0/24 on that machine. Then use that machine's 192.168.20.0/24 ip as the default gateway for the other 192.168.20.0/24 machines. I then have added a route on the asa for 192.168.20.0/24 network back to the windows machine for the inside interface.
I can ping both sides of the windows machine from the 192.168.20.0/24 clients but no other machines on the 192.168.1.0/24 network. I can ping both networks from the asa. I have network access from the 192.168.1.0/24 network but not from the 192.168.20.0/24 network. I cannot ping the 192.168.20.0/24 network from any machines on the 192.168.1.0/24 network.
Any recommendations would be helpful.