How to setup gre tunnel between an instance and an external node ?
I want to create a gre tunnel between an instance in the openstack VM and an external host connected via the internet. Is there a way that i could accomplish this?
If your instances are running a linux that has vxlan support, it's probably better to use it, as it's just udp. See the ip-link man page http://stuff.onse.fi/man?program=ip-l...
I'm using emulab (https://www.emulab.net/) for my openstack deployment. Which uses vlans for the experiment isolation. I can't use vxlan on top of it. I have already tried it and go into many worse issues. Hence gre seems to be a good way to workaround that!