LXCでコンテナに複数のインターフェースを割り当てる

/var/lib/lxc/コンテナ名、配下にあるconfigファイルを書き換えでOKでした。

# pwd
/var/lib/lxc/container-name

# ls -lh
合計 12K
-rw-r--r--  1 root root 1.8K  417 21:32 config
-rw-r--r--  1 root root  329  410 01:43 fstab
drwxr-xr-x 21 root root 4.0K  417 21:32 rootfs
-rw-------  1 root root    0  410 01:44 rootfs.hold

# cat config


# Template used to create this container: /usr/share/lxc/templates/lxc-ubuntu
# Parameters passed to the template:

lxc.network.type = veth
lxc.network.hwaddr = 00:16:3e:2a:77:b4
lxc.network.flags = up
lxc.network.link = lxcbr0
lxc.network.ipv4 = 10.0.3.10
lxc.network.ipv4.gateway = 10.0.3.1
lxc.network.name = eth0

lxc.network.type = veth
lxc.network.flags = up
lxc.network.ipv4 = 192.168.0.100
lxc.network.name = eth1

lxc.rootfs = /var/lib/lxc/container-name/rootfs
lxc.mount = /var/lib/lxc/container-name/fstab
lxc.pivotdir = lxc_putold

lxc.devttydir = lxc
lxc.tty = 4
lxc.pts = 1024

lxc.utsname = container-name
lxc.arch = amd64
lxc.cap.drop = sys_module mac_admin mac_override sys_time

# When using LXC with apparmor, uncomment the next line to run unconfined:
#lxc.aa_profile = unconfined

# To support container nesting on an Ubuntu host, uncomment next two lines:
#lxc.aa_profile = lxc-container-default-with-nesting
#lxc.hook.mount = /usr/share/lxc/hooks/mountcgroups

lxc.cgroup.devices.deny = a
# Allow any mknod (but not using the node)
lxc.cgroup.devices.allow = c *:* m
lxc.cgroup.devices.allow = b *:* m
# /dev/null and zero
lxc.cgroup.devices.allow = c 1:3 rwm
lxc.cgroup.devices.allow = c 1:5 rwm
# consoles
lxc.cgroup.devices.allow = c 5:1 rwm
lxc.cgroup.devices.allow = c 5:0 rwm
# /dev/{,u}random
lxc.cgroup.devices.allow = c 1:9 rwm
lxc.cgroup.devices.allow = c 1:8 rwm
lxc.cgroup.devices.allow = c 136:* rwm
lxc.cgroup.devices.allow = c 5:2 rwm
# rtc
lxc.cgroup.devices.allow = c 254:0 rm
# fuse
lxc.cgroup.devices.allow = c 10:229 rwm
# tun
lxc.cgroup.devices.allow = c 10:200 rwm
# full
lxc.cgroup.devices.allow = c 1:7 rwm
# hpet
lxc.cgroup.devices.allow = c 10:228 rwm
# kvm
lxc.cgroup.devices.allow = c 10:232 rwm

#