I have a CentOS 6.4 machine running as a server plugged directly into the cable router. It has an address of 192.168.0.4. All the rest of my machines are running on a router plugged into the cable router and have an address range of 10.0.0.XXX. The Synergy server is specifically 10.0.0.21 (Windows 8). Another machine now running Synergy as a client is 10.0.0.22 (Mac OS X 10.9) and the two of them work very well.
I am having trouble getting the CentOS machine to work as a client because of access problems. I don't know if I am to do port forwarding, set a route in the CentOS machine or some other means of getting a pathway between the CentOS and Windows 8 machine.
Any help would be appreciated.