After exhaustively searching on Google and other locations, I still need some direction or primer on setting up the network I'm aiming for.
I have a cluster of machines networked via SSH using external static IPs. What I want to do is localise the network and only have one external node that all the other machines route through to access the Internet (and conversely, externally access the other nodes via SSH through this one machine).
This is set up on a university network, so we don't have an internal network router, only a switch (Netgear GS748T). Is it possible to use the switch to set up a local network (using say 192.168.x.x addressing) and then route through one machine to the external network? And if so, how is this set up and managed? The main reason for the switch is because we're entirely dependent on the external network being up for parallelisation -- if the university network drops for any reason, we lose the cluster connectivity.
Not being a typical set up, I've found it difficult to find guides to get off the ground. As such, any help or suggestions of where to direct my search would be appreciated.