Re: Virtual interfaces with own MACs
On Wed, Sep 26, 2018, at 15:51, Jarkko Oranen wrote: > On Wed, 2018-09-26 at 14:45 +0200, Paul de Weerd wrote: > > > > > > Note that I haven't tried this .. may need some tweaking. > > > I have pretty much exactly this setup except vether1 is in a separate > rdomain to avoid issues with the default route. And 'dhclient' is > 'dhcp' instead: > > # cat /etc/hostname.vether1 > rdomain 1 > group dmz > lladdr ee:64:de:b9:72:87 > dhcp > > I use the extra IP for a 1:1 NAT to a specific host in my local > network. It works well enough. > > > > > Cheers, > > > > Paul 'WEiRD' de Weerd > > > -- > Jarkko Oranen > Thanks for all replies. But today The ISP has changed their mind and have now reconfigured so non business customers that buy more than one fixed IP now are allowed to set them without DHCP :) Peo
Re: Virtual interfaces with own MACs
On Wed, 2018-09-26 at 14:45 +0200, Paul de Weerd wrote: > > > Note that I haven't tried this .. may need some tweaking. I have pretty much exactly this setup except vether1 is in a separate rdomain to avoid issues with the default route. And 'dhclient' is 'dhcp' instead: # cat /etc/hostname.vether1 rdomain 1 group dmz lladdr ee:64:de:b9:72:87 dhcp I use the extra IP for a 1:1 NAT to a specific host in my local network. It works well enough. > > Cheers, > > Paul 'WEiRD' de Weerd > -- Jarkko Oranen
Re: Virtual interfaces with own MACs
On Wed, Sep 26, 2018 at 1:54 PM, Per-Olov Sjöholm 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.
Re: Virtual interfaces with own MACs
On Wed, Sep 26, 2018 at 01:54:40PM +0200, Per-Olov Sjöholm 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? Something similar can be done with a bridge(4), your ISP-interface and two vether(4) interfaces. /etc/hostname.ix3 up /etc/hostname.bridge0 up add ix3 add vether0 add vether1 /etc/hostname.vether0 up lladdr yo:ur:ma:ca:dd:re:ss:he:re dhclient /etc/hostname.vether1 up lladdr yo:ur:ma:ca:dd:re:ss:he:re dhclient Note that I haven't tried this .. may need some tweaking. Cheers, Paul 'WEiRD' de Weerd -- >[<++>-]<+++.>+++[<-->-]<.>+++[<+ +++>-]<.>++[<>-]<+.--.[-] http://www.weirdnet.nl/
Virtual interfaces with own MACs
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… Many thanks in advance Regards Peo
