how to route traffic through my pc?

[Doug S]

I'm not sure if I'll need masquerading

Yes, you will need the network address translation (NAT).
Your gateway will perform NAT to/from 192.168.2.XXX - 192.168.0.100 and then further upstream there will be another NAT to internet

[fwre01]

It sounds as though you're on the right track.

I'm not convinced you will need masquerading considering your eth0 interface is on private address space. One would assume your upstream gateway will NAT all internal address space? Maybe?

See how you go without it.

[Doug S]

I'm not convinced you will need masquerading considering your eth0 interface is on private address space. One would assume your upstream gateway will NAT all internal address space? Maybe?

Yes, but how it know how to route the traffic? I think you still need to NAT from the one private network to the other private network. Then, yes, the upstream gateway will NAT again to/from the WAN. Perhaps there is a way to do it without the 192.168.2.XXX to/from 192.168.0.100 NAT, via adding in specific routing on the 192.168.0 sub-net, I don't know as I wouldn't do it that way.

[jonnyboysmithy]

Thank you very much for the information, I should be able to research the rest (although I may have to ask ). Before starting this thread I hadn't a clue how to go about doing this. Right now I'm quite busy, I'll get back to this later, maybe in a few weeks. Thanks again.