On Tue, Sep 25, 2018 at 8:49 AM David Young <dyo...@pobox.com> wrote: > I added UDP encapsulation to gre(4) in NetBSD specifically to pierce NAT > firewalls, however, I don't know if Linux also has a UDP encapsulation > for GRE.
That's pretty cool. I will try it at some point. That plus a private IP address on both sides would solve this pretty cleanly. This is off topic, but it was alluded to earlier: I think it's possible for a router to forward an IP protocol inward via NAT, such as GRE? Or am I mistaken? Andy
