no link in container

[goeldi]

I installed Proxmox 5.1 and created a container:

# pveversion
pve-manager/5.1-41/0b958203 (running kernel: 4.13.13-4-pve)

For the node everything works, but in the container I have no network connection at all. Also direct ping to the gateway/node does not work. Firewalls are deactivated.

Here is "ip addr" on the node:

2: enp0s31f6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master vmbr0 state UP group default qlen 1000
link/ether 90:1b:0e:de:e6:a2 brd ff:ff:ff:ff:ff:ff
3: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 90:1b:0e:de:e6:a2 brd ff:ff:ff:ff:ff:ff
inet 94.130.131.164/26 brd 94.130.131.191 scope global vmbr0
valid_lft forever preferred_lft forever
inet6 fe80::921b:eff:fede:e6a2/64 scope link
valid_lft forever preferred_lft forever
9: veth565i0@if8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
link/ether fe:92:8f:43:5a:9e brd ff:ff:ff:ff:ff:ff link-netnsid 0

And this is "ip addr" in the container:

8: eth0@if9: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 3a:8b:44:93:78:2d brd ff:ff:ff:ff:ff:ff link-netnsid 0
inet 195.201.15.65/28 brd 195.201.15.79 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::388b:44ff:fe93:782d/64 scope link
valid_lft forever preferred_lft forever

This is the dmesg, which looks the same in the node and in the container:

[17198.141788] eth0: renamed from vethHEMOMM
[17198.396844] vmbr0: port 2(veth565i0) entered blocking state
[17198.396846] vmbr0: port 2(veth565i0) entered forwarding state
[17406.377281] vmbr0: port 2(veth565i0) entered disabled state
[17406.377616] device veth565i0 left promiscuous mode
[17406.377620] vmbr0: port 2(veth565i0) entered disabled state
[17412.881085] IPv6: ADDRCONF(NETDEV_UP): veth565i0: link is not ready
[17413.119607] vmbr0: port 2(veth565i0) entered blocking state
[17413.119608] vmbr0: port 2(veth565i0) entered disabled state
[17413.119635] device veth565i0 entered promiscuous mode
[17413.165827] eth0: renamed from vethP3JW16
[17413.421788] vmbr0: port 2(veth565i0) entered blocking state
[17413.421801] vmbr0: port 2(veth565i0) entered forwarding state

TIA

 

[goeldi]

Here is the output of lxc-checkconfig:

Kernel configuration not found at /proc/config.gz; searching...
Kernel configuration found at /boot/config-4.13.13-4-pve
--- Namespaces ---
Namespaces: enabled
Utsname namespace: enabled
Ipc namespace: enabled
Pid namespace: enabled
User namespace: enabled
Network namespace: enabled

--- Control groups ---
Cgroups: enabled

Cgroup v1 mount points:
/sys/fs/cgroup/systemd
/sys/fs/cgroup/freezer
/sys/fs/cgroup/net_cls,net_prio
/sys/fs/cgroup/devices
/sys/fs/cgroup/cpu,cpuacct
/sys/fs/cgroup/cpuset
/sys/fs/cgroup/perf_event
/sys/fs/cgroup/hugetlb
/sys/fs/cgroup/rdma
/sys/fs/cgroup/blkio
/sys/fs/cgroup/memory
/sys/fs/cgroup/pids

Cgroup v2 mount points:


Cgroup v1 clone_children flag: enabled
Cgroup device: enabled
Cgroup sched: enabled
Cgroup cpu account: enabled
Cgroup memory controller: enabled
Cgroup cpuset: enabled

--- Misc ---
Veth pair device: enabled, loaded
Macvlan: enabled, not loaded
Vlan: enabled, not loaded
Bridges: enabled, not loaded
Advanced netfilter: enabled, not loaded
CONFIG_NF_NAT_IPV4: enabled, not loaded
CONFIG_NF_NAT_IPV6: enabled, not loaded
CONFIG_IP_NF_TARGET_MASQUERADE: enabled, not loaded
CONFIG_IP6_NF_TARGET_MASQUERADE: enabled, not loaded
CONFIG_NETFILTER_XT_TARGET_CHECKSUM: enabled, not loadedCONFIG_NETFILTER_XT_MATCH_COMMENT: enabled, not loaded
FUSE (for use with lxcfs): enabled, not loaded


--- Checkpoint/Restore ---
checkpoint restore: enabled
CONFIG_FHANDLE: enabled
CONFIG_EVENTFD: enabled
CONFIG_EPOLL: enabled
CONFIG_UNIX_DIAG: enabled
CONFIG_INET_DIAG: enabled
CONFIG_PACKET_DIAG: enabled
CONFIG_NETLINK_DIAG: enabled
File capabilities: enabled