[44net] GRE tunnels

Hi everyone, Anyone been playing with GRE tunneling? I am looking at that solution to bring part of my /24 to sites where I have multiple machine that each need a 44 address. GRE have no encryption, it is only an encapsulation of a Layer 2 packet. This lower the actual possible MTU size lowering the throughput slightly. But it is an easy way to connect a site to the VPS. At the same time, we dont need encryption as all the data that are passing into that tunnel is supposed to be ok to route on the internet. and if they contain special thing they should already be encrypted with tls/ssl or other mean of securing the connection. Anyone have experience with this? I would then use openvpn is its normal way for simple client. Then I imagine I will need to bridge both tunnel so that every one could talk to each other at the VPS level. Sounds plausible? Pierre VE2PF