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DHCP and MACvlans in VBoxed containers
Posted: 20. Dec 2013, 19:08
by toby.h.ferguson
Problem: macvlans don't seem to allow VirtualBox guests containers (!) to use dhcp, no matter the networking mode, no matter the adaptor chosen.
Description: OL6U5 host, OL6U5 guest, bridged networking, non-intel adaptor. Guest contains a linux container, and I want to make that container use dhcp to get its address. This doesn't work ... setting the address manually does work, but dhcp doesn't.
Anyone seen anything like this, or have any ideas what I might try next? (I haven't gotten wireshark out yet to see if the request gets out, but that'd be my next step as/when I have time)
Toby
Re: DHCP and MACvlans in VBoxed containers
Posted: 22. Jan 2014, 21:22
by toby.h.ferguson
For the record, Jerome Petazzone @docker.com gave me this info:
- The "Adapter Type" should be set to "PCnet-FAST III" (not the default, which is an Intel PRO/1000 variant), see https://www.virtualbox.org/ticket/6519
- "Promiscuous Mode" should be set to "Allow All".
And I found that my container configuration file had TWO entries for lxc.network in it - so I reduced it to this set:
Code: Select all
lxc.network.type = macvlan
lxc.network.macvlan.mode = bridge
lxc.network.link = eth0
lxc.network.flags = up
Furthermore, my ifcfg-eth0 contained:
Code: Select all
DEVICE=eth0
BOOTPROTO=dhcp
ONBOOT=ues
DHCP_HOSTNAME=ol65.toby.net
Once I'd done an ifdown eth0; ifup eth0 everything worked as I'd hoped. Great!
Re: DHCP and MACvlans in VBoxed containers
Posted: 21. Nov 2019, 11:20
by jmar83_the2nd
Can somebody confirm that macvlan adapters work with "PCnet-FAST III" and "Promiscuous Mode" set to "Allow All"...?
I can't - not really... :-(
Re: DHCP and MACvlans in VBoxed containers
Posted: 21. Nov 2019, 20:24
by socratis
Doing a search for "MACvlan", all queries/answers/hits point to Docker. Maybe you're asking in the wrong forums? Have you tried the
Docker support channels?
Re: DHCP and MACvlans in VBoxed containers
Posted: 21. Nov 2019, 20:53
by jmar83_the2nd
No, i want to use a macvlan adapter without docker...
Re: DHCP and MACvlans in VBoxed containers
Posted: 21. Nov 2019, 21:04
by scottgus1
First we have a necropost, about 5 years' decay.
And we have Jan forgetting or failing to see Socratis' advice
here:
Socratis wrote:PS. It works best if you first consolidate your posts and then sum them up in a coherent post, instead of splitting them up in 4 posts
Jan, Toby hasn't been around since March 11th, 2014. Click his name and you'll see when he last posted.
Seems like
here might be a better place to continue your project.
Re: DHCP and MACvlans in VBoxed containers
Posted: 22. Nov 2019, 10:07
by jmar83_the2nd
OK thx
Re: DHCP and MACvlans in VBoxed containers
Posted: 17. Dec 2020, 13:23
by jmar83_the2nd
Question: Is that issue with macvlan adapters solved now?
Or is it unsolveable, so to say "by design"...?
(But in my case, i don't use DHCP - static only. But macvlan adapters was genereally not working the last time i've tried it)
Thank you for your feedbacks.
Re: DHCP and MACvlans in VBoxed containers
Posted: 17. Dec 2020, 17:06
by scottgus1
I don't have any info on any changes over macvlans. Check the
Bugtracker for any active tickets reporting changes, or look at the changelog for new versions. Or try a
test build.
Let us know what you find.
Re: DHCP and MACvlans in VBoxed containers
Posted: 17. Dec 2020, 18:50
by jmar83_the2nd
Thank you very much for your fast feedback - will try it ASAP!! :-)