[systemd-devel] nspawn container: network broken

[arnaud gaboury]

Host distro: arch linux running systemd 230
container distro Fedora 24 running systemd 229

I broke systemd-networkd on the host after an upgrade to 231-1. The
issue was the one described here[0]. In order to get back my network,
I downgraded to 230 and now network is working on host, BUT still
broken on the container.

Here are my settings:

Start container:
# systemctl start systemd-nspawn at poppy

systemd-networkd manage network on host and container.

## On host ##
$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
.......
2: enp7s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
master br0 state UP group default qlen 1000
    link/ether 14:da:e9:b5:7a:88 brd ff:ff:ff:ff:ff:ff
......
4: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state
UP group default qlen 1000
    link/ether b6:0c:00:22:f1:4a brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.87/24 brd 192.168.1.255 scope global br0
       valid_lft forever preferred_lft forever
.....
5: ve-poppy at if2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
noqueue state UP group default qlen 1000
    link/ether 0e:9a:d7:18:a3:59 brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet 169.254.50.244/16 brd 169.254.255.255 scope link ve-poppy
       valid_lft forever preferred_lft forever
.....

/etc/systemd/system/network/bridge.network
------------
[Match]
Name=br0

[Network]
Address=192.168.1.87/24
Gateway=192.168.1.254
DNS=192.168.1.254
--------------------------------------

/etc/systemd/system/network/eth.network
------------------------------------
[Match]
Name=enp7s0

[Network]
Bridge=br0
-------------------------------------

/etc/systemd/system/network/bridge.netdev
------------------------------
[NetDev]
Bridge=br0
Kind=bridge
----------------------------


## On container ##

$ ip a1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state
UNKNOWN group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
.......
2: host0 at if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
state UP group default qlen 1000
    link/ether 0e:7f:c3:fb:25:b1 brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet 192.168.1.94/24 brd 192.168.1.255 scope global host0
       valid_lft forever preferred_lft forever
........

/etc/systemd/network/poppy.network
--------------------------------
[Match]
Name=host0

[Network]
DNS=192.168.1.254
Address=192.168.1.94/24
Gateway=192.168.1.254
--------------------------------------

% systemctl status systemd-networkd
● systemd-networkd.service - Network Service
   Loaded: loaded (/usr/lib/systemd/system/systemd-networkd.service;
enabled; vendor preset: disabled)
   Active: active (running) since Fri 2016-08-12 12:26:59 CEST; 1h 51min ago
     Docs: man:systemd-networkd.service(8)
 Main PID: 33 (systemd-network)
   Status: "Processing requests..."
   CGroup: /machine.slice/systemd-nspawn at poppy.service/system.slice/systemd-networkd.service
           └─33 /usr/lib/systemd/systemd-networkd

Aug 12 12:26:59 thetradinghall.com systemd[1]: Starting Network Service...
Aug 12 12:26:59 thetradinghall.com systemd-networkd[33]: host0: Cannot
disable kernel IPv6 accept_ra for i
Aug 12 12:26:59 thetradinghall.com systemd-networkd[33]: Enumeration completed
Aug 12 12:26:59 thetradinghall.com systemd[1]: Started Network Service.
Aug 12 12:26:59 thetradinghall.com systemd-networkd[33]: host0: Gained carrier
Aug 12 12:27:00 thetradinghall.com systemd-networkd[33]: host0: Gained IPv6LL
Aug 12 12:27:12 thetradinghall.com systemd-networkd[33]: host0:
Starting DHCPv6 client after NDisc timeout
Aug 12 12:27:12 thetradinghall.com systemd-networkd[33]: host0: Configured


****************************

May someone help me to fix the broken network on container?

Thank you.



[0]https://github.com/systemd/systemd/issues/3876


-- 

google.com/+arnaudgabourygabx