Please include gretap tunnel in version 7.1. eoip is not vendor neutral.
reviewed the old links in the topic ... maybe it's just the two of us ? : )
I've tested gretap tunneling with cisco-click-OS-AP's and Alcatel-Stellar-AP's (generic support for the last)
I outperformed the alcatel-gtts solution for terminating these GRETAP-tunnels with a debian-kernel on a 10Gig-Interface-supermicro-server by 10:1 [open-vswitch-setup without further tweaks]!
there are ax-radio-AP's with open-wrt already avail ... the hardware supports 2,5-5 Gbit/s in core-direction .... should be terminated accordingly on a central-controller.