On the Linux side there is gretap, so you should be able to use egre on OpenBSD to create an L2 bridge. You should also take a look at VXLAN.
diana
On October 29, 2023 5:08:30 PM MDT, Anders Andersson <pipatron@gmail.com> wrote:
>I use OpenBSD for my home network router. The internet-facing side is a veb
>with my physical em0 and two vports serving as my two external interfaces.
>My lan is connected to a separate em1 port.
>
>Behind the router I have a linux server with virtual machines, their
>virtual interfaces connected to a linux bridge which is either bridged with
>the physical interface or kept private inside the server.
>
>I wonder if there is a way to connect the linux bridge to the openbsd
>bridge so that my virtual linux containers can be exposed to the external
>internet?
>
>I found egre and nvgre as possible candidates in the excellent OpenBSD
>manuals, but before I start destroying things I would like to know if this
>is even the right way to go.
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