Please forgive my ignorance, but I need to set up an IPSEC site-to-site VPN between our 192.168.x.* network and a 10.y.z.* network somewhere else. I guess I need some appliance that can masquerade the 192.168.x.* packets as 10.y.z.* packets and vice versa. Can this be accomplished via source NAT? Do I even need source NAT?
Right now we have a Cisco RV320 router which can do site-to-site VPNs but not source NAT (it does PAT but it looks to me like that doesn't include source NAT).
What's the easiest way of accomplishing this?