On Sat, 04 May 2019 22:39:32 +0000 amytain amytain@protonmail.com wrote:

Would it be possible to support gre tunneling for the inbound IP for the exit and outbound ips?

Does your browser or your web server "support GRE tunneling"? If you set up a tunnel in your OS, then naturally you can send/receive IP protocol packets over it, and run any IP-using software, including Tor. But expecting tunnel support in Tor itself would be just as awkward as the first two examples. And it works as is, currently I do run Tor on a few nodes using IPs coming in via GRE tunnels with no issues whatsoever.