I want to implement some VPN's between our office and our client's offices for remote monitoring or servers / devices & client PC support, but I'm not 100% sure if will work, so I have some questions for those who use this setup.
We have SME 7.3 in the office, and our network is 192.168.10.0/24 in the LAN side, and 192.168.1.0/24 on the WAN side (it's really just the SME external interface & ADSL router at this stage). .
From my understanding, I would need to configure each LAN on the VPN on a different subnet, righ? So, clientA would be 192.168.20/24, clientB would be 192.168.21/24, clientC = 192.168.22/24, etc. is this right? Would I then be able to acces for example bob.clienta (if bob is the machine name, and clienta is the network name) or router.clientb (where router is the ADSL router on clientb's network)?
What happens to internet traffic at any of those locations? I have read in a few posts further up that it should go through the local ADSL modem, so clientA should use their own bandwidth, and clientB their own bandwidth, is that so? But what if I have a wireless 10KM link between 2 sites, and I want that network (clientD, 192.168.10.23/24) to use our internet bandwidth as well?
How well will this setup work if a client's network has OpenSuse 10.0 instead of SME?
Would a normal Windows PC with direct internet connectivity (like a laptop @ a Wifi hotspot in another town / state / country) be able to access the SME server, and ultimately the LAN as well?