Dennis Jacobfeuerborn
2014-Aug-22 03:06 UTC
[libvirt-users] vlan tags filtered in linux bridge interfaces?
Hi, I've set up a virtual machine and plugged it into a bridge on the host. When i configure an ip for eth0 in the guest i can ping other machines fine but when I add an interface eth0.10 in the guest and add an ip pings using this interface do not work. When using tcpdump in vnet0 on the host I can see the icmp packets when I ping using eth0 in the guest but not when I use the eth0.10 interface. Do tagged packets get filtered by libvirt and can this be disabled so that packets just get forwarded without such filtering? Regards, Dennis
Laine Stump
2014-Aug-22 15:48 UTC
Re: [libvirt-users] vlan tags filtered in linux bridge interfaces?
On 08/21/2014 11:06 PM, Dennis Jacobfeuerborn wrote:> Hi, > I've set up a virtual machine and plugged it into a bridge on the host. > When i configure an ip for eth0 in the guest i can ping other machines > fine but when I add an interface eth0.10 in the guest and add an ip > pings using this interface do not work. > When using tcpdump in vnet0 on the host I can see the icmp packets when > I ping using eth0 in the guest but not when I use the eth0.10 interface. > > Do tagged packets get filtered by libvirt and can this be disabled so > that packets just get forwarded without such filtering?libvirt doesn't do anything explicit to filter vlan-tagged packets. If something is happening, it's happening at a different level (perhaps in the guest itself)