Ethernet tunneling options under FreeBSD

[Kimmo Paasiala]

On Fri, Aug 14, 2015 at 1:40 AM, James Lott <james at lottspot.com> wrote:
> Hello list,
>
> I am in the process of planning a build out of a L2 VPN, in which I'd like
> to have my primary "switch" and DHCP server be a FreeBSD system. I would
> like to join each new host to the VPN by establishing an IP tunnel with the
> primary "switch" which transports ethernet frames over the tunnel.
>
> So far, the only protocol I have found supported by FreeBSD which seems
> capable of this is EtherIP. As far as I can tell, it doesn't look like there
> is any support for L2TPv3, and none of the PPP implementations available
> appear to support BCP.
>
> I'm not completely opposed to using EtherIP, but if there is something more
> modern which will meet my needs, I would probably try that first. So my
> question becomes:
>
> * Does anyone know of a method supported under FreeBSD (other than EtherIP)
> for tunneling ethernet over IP that they may be able to suggest I check out?
>
> Thanks for any suggestions!
>
First thing that comes to my mind is OpenVPN on a tap(4) interface.

-Kimmo