On Wed, Sep 26, 2018 at 1:54 PM, Per-Olov Sjöholm <p...@incedo.org> wrote: > Hi > > I want to receive 2 IPs that are mine from the ISP (I have to supply 2 MACs) > over DHCP. They have a problem letting me add them permanent without dhcp as > their snooping blocks my connection if not using dhcp. > > I want to use just one physical interface as I do not have more 10Gbit > interfaces to spare. Also I want to use fake virtual MAC so I can switch > hardware without contacting the ISP. > > Is it possible in OpenBSD to create sub interfaces with different MACs on > them and use dhcp for both? How? > > In linux I think it can be done as: > ip link add link eth0 address 00:11:11:11:11:11 eth0.1 type macvlan > ifconfig eth0.1 up > dhclient -v eth0.1 > ip link add link eth0 address 00:11:11:11:11:12 eth0.2 type macvlan > ifconfig eth0.2 up > dhclient -v eth0.2 > > > > Is it possible to something similar to > > /etc/hostname.ix3 > up > > /etc/hostname.ix3:1 > !ifconfig SUBINT VIRTUAL_NEW_MAC SUBDEV $if Public IP 1” > !dhclient ix3:1 > > > /etc/hostname.ix3:2 > !ifconfig SUBINT VIRTUAL_NEW_MAC SUBDEV $if Public IP 2” > !dhclient ix3:2 > > > If so… What should they look like. Note that I want to provide the ISP the > virtual MACs and not the cards physical MAC…
Here is an old post of mine explaining what sounds like your exact setup for the same reason: http://openbsd-archive.7691.n7.nabble.com/Bridged-vether-interfaces-can-t-talk-to-each-other-multiple-routing-tables-td316937.html I did get most of it working, but it was a long time ago and I never used the router in "real life". I had issues communicating between the domains. I'm not sure if those examples are good or bad but it could be a starting point.
