Translation(s): none

Please find alternative network setups for containers on the LXC mainpage.

In case of VLAN networking, here's an example setup that may be useful.

Assuming the host is on a regular private local network, and you place the guest inside the .123 VLAN, here's what /etc/network/interfaces may look like : 

auto eth0
iface eth0 inet static
        address 192.168.1.12
        netmask 255.255.255.0
        network 192.168.1.0
        broadcast 192.168.1.255
        gateway 192.168.1.1
        dns-nameservers 192.168.1.1

iface eth0.123 inet manual
    vlan-raw-device eth0

auto br0.123
iface br0.123 inet manual
      bridge_ports eth0.123
      bridge_fd 0
      bridge_maxwait 0

Then, you'd configure the LXC container/guest with something like : 

lxc.utsname = guestvm
lxc.network.type = veth
lxc.network.flags = up
lxc.network.link = br0.123
lxc.network.name = eth0
lxc.network.ipv4 = 192.168.2.1/24
lxc.network.veth.pair = vethvm1

where 192.168.2.x would be on the 123 VLAN.

Hope this helps.

To the guest, this will then be transparent : inside the guest, a single eth0 will be available, with 192.168.2.1/24 IP address (and no VLAN).

You'll probably need ebtables firewalling to control the traffic through the bridge.