[ovs-discuss] OVS & tun interfaces / openvpn design

O'Reilly, Darragh darragh.oreilly at hpe.com
Mon Nov 21 09:56:11 UTC 2016

OpenVPN can use tap interfaces instead of tun interfaces. These should work in an OVS bridge.

> -----Original Message-----
> From: ovs-discuss-bounces at openvswitch.org [mailto:ovs-discuss-
> bounces at openvswitch.org] On Behalf Of Benoît
> Sent: 20 November 2016 17:24
> To: ovs-discuss at openvswitch.org
> Subject: [ovs-discuss] OVS & tun interfaces / openvpn design
> Hi,
> Just to see if any of you are using OVS + OpenVPN ?
> My linux box is running OVS managing both my KVM vnics and my physical nics
> and I am using OpenVpn for my external internet access, this creates a tun
> interface.
> How you guys deal with this as ovs is not L3 and there is no way to include the
> tun interface into the vswitch as only ethernet interface are supported?
> I would like particulary to mirror the tun interface but I didn't find another
> solution rather than using iptables tee function to send to another interface
> inside an ovs switch but I don't like very much...
> and it is the only workaround I found.
> Would be very interested to heard about how do you deal with this situation
> (tun/openvpn devices + ovs) in term of design
> Many thanks!
> --
> Benoit
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