No network for VMs (bridge not working)

[schawo]

Hi,

I am just trying to get my first Proxmox installation up and running. The first LXC container is up, but has no network.
What am I doing wrong?

/etc/network/interfaces on host

auto lo
iface lo inet loopback

iface eth0 inet manual

auto vmbr0
iface vmbr0 inet static
        address 37.xxx.xxx.74
        netmask 255.255.255.252
        network 37.xxx.xxx.72
        broadcast 37.xxx.xxx.75
        gateway 37.xxx.xxx.73
        # dns-* options are implemented by the resolvconf package, if installed
        dns-nameservers 127.0.0.1
        dns-search ml
        bridge_ports eth0
        bridge_stp off
        bridge_fd 0

auto vmbr3
iface vmbr3 inet static
        address 37.xxx.xxx.209
        netmask 255.255.255.252
        bridge_ports eth0
        bridge_stp off
        bridge_fd 0

/etc/network/interfaces in LXC container

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
    address 37.xxx.xxx.209
    netmask 255.255.255.255

ifconfig result on host if the container is running (What about the veth100i0? has the same MAC as vmbr3)

eth0      Link encap:Ethernet  HWaddr ac:22:0b:51:82:3e
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:45343 errors:0 dropped:0 overruns:0 frame:0
          TX packets:31866 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:13400437 (12.7 MiB)  TX bytes:11534602 (11.0 MiB)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:12449 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12449 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1
          RX bytes:4830390 (4.6 MiB)  TX bytes:4830390 (4.6 MiB)

veth100i0 Link encap:Ethernet  HWaddr fe:33:0d:7c:df:e0
          inet6 addr: fe80::fc33:yyyyyyyyyyyy:dfe0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:7 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:658 (658.0 B)  TX bytes:508 (508.0 B)

vmbr0     Link encap:Ethernet  HWaddr ac:22:0b:51:82:3e
          inet addr:37.xxx.xxx.74  Bcast:37.xxx.xxx.75  Mask:255.255.255.252
          inet6 addr: 2a03:2040:1:519:ae22:yyyyyyyyyyyy:823e/64 Scope:Global
          inet6 addr: fe80::ae22:yyyyyyyyyyyy:823e/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:44116 errors:0 dropped:0 overruns:0 frame:0
          TX packets:31866 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:12688523 (12.1 MiB)  TX bytes:11534602 (11.0 MiB)

vmbr3     Link encap:Ethernet  HWaddr fe:33:0d:7c:df:e0
          inet addr:37.xxx.xxx.209  Bcast:37.xxx.xxx.211  Mask:255.255.255.252
          inet6 addr: fe80::d476:yyyyyyyyyyyy:8ab2/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:57 errors:0 dropped:0 overruns:0 frame:0
          TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:4300 (4.1 KiB)  TX bytes:868 (868.0 B)

ifconfig in the container

eth0      Link encap:Ethernet  HWaddr 32:39:33:36:62:34
          inet addr:37.xxx.xxx.209  Bcast:37.xxx.xxx.211  Mask:255.255.255.252
          inet6 addr: fe80::3039:yyyyyyyyyyyy:6234/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:8 errors:0 dropped:0 overruns:0 frame:0
          TX packets:9 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:648 (648.0 B)  TX bytes:798 (798.0 B)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:8 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1
          RX bytes:544 (544.0 B)  TX bytes:544 (544.0 B)

/var/lib/lxc/100/config looks like (I don't see any lxc.network.link entry. Tried to fix manually, but the file always reverts to this version on CT startup. WHY?)

lxc.arch = amd64
lxc.include = /usr/share/lxc/config/debian.common.conf
lxc.monitor.unshare = 1
lxc.tty = 2
lxc.environment = TERM=linux
lxc.utsname = corimar.com
lxc.cgroup.memory.limit_in_bytes = 1073741824
lxc.cgroup.memory.memsw.limit_in_bytes = 9663676416
lxc.cgroup.cpu.cfs_period_us = 100000
lxc.cgroup.cpu.cfs_quota_us = 200000
lxc.cgroup.cpu.shares = 2000
lxc.rootfs = /var/lib/lxc/100/rootfs
lxc.network.type = veth
lxc.network.veth.pair = veth100i0
lxc.network.hwaddr = 32:39:33:36:62:34
lxc.network.name = eth0

/etc/pve/lxc/100.conf:

arch: amd64
cpulimit: 2
cpuunits: 2000
hostname: corimar.com
memory: 1024
net0: name=eth0,bridge=vmbr3,hwaddr=32:39:33:36:62:34,type=veth
ostype: debian
rootfs: local:100/vm-100-disk-1.raw,size=100G
swap: 8192

Best regards,
schawo

 

[schawo]

any idea?