[SOLVED] systemctl status networking.service failed

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Stefano Scoppa

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Dec 7, 2018
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Hi all,

I'm running 4.15.18-9-pve and this is the network configuration:


root@pve03:~# ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

4: enp4s0f0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master bond0 state UP mode DEFAULT group default qlen 1000
link/ether f4:e9:d4:a5:ea:50 brd ff:ff:ff:ff:ff:ff
5: enp4s0f1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master bond0 state UP mode DEFAULT group default qlen 1000
link/ether f4:e9:d4:a5:ea:50 brd ff:ff:ff:ff:ff:ff
6: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP mode DEFAULT group default qlen 1000
link/ether f4:e9:d4:a5:ea:50 brd ff:ff:ff:ff:ff:ff
7: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
link/ether f4:e9:d4:a5:ea:50 brd ff:ff:ff:ff:ff:ff
8: vlan439@bond0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr1 state UP mode DEFAULT group default qlen 1000
link/ether f4:e9:d4:a5:ea:50 brd ff:ff:ff:ff:ff:ff
9: vmbr1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
link/ether f4:e9:d4:a5:ea:50 brd ff:ff:ff:ff:ff:ff



root@pve03:~# ip address

4: enp4s0f0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master bond0 state UP group default qlen 1000
link/ether f4:e9:d4:a5:ea:50 brd ff:ff:ff:ff:ff:ff
5: enp4s0f1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master bond0 state UP group default qlen 1000
link/ether f4:e9:d4:a5:ea:50 brd ff:ff:ff:ff:ff:ff
6: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr0 state UP group default qlen 1000
link/ether f4:e9:d4:a5:ea:50 brd ff:ff:ff:ff:ff:ff
7: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether f4:e9:d4:a5:ea:50 brd ff:ff:ff:ff:ff:ff
inet 10.10.32.3/20 brd 10.10.47.255 scope global vmbr0
valid_lft forever preferred_lft forever
inet6 fe80::f6e9:d4ff:fea5:ea50/64 scope link
valid_lft forever preferred_lft forever
8: vlan439@bond0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master vmbr1 state UP group default qlen 1000
link/ether f4:e9:d4:a5:ea:50 brd ff:ff:ff:ff:ff:ff
9: vmbr1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether f4:e9:d4:a5:ea:50 brd ff:ff:ff:ff:ff:ff
inet 10.10.126.53/24 brd 10.10.126.255 scope global vmbr1
valid_lft forever preferred_lft forever
inet6 fe80::f6e9:d4ff:fea5:ea50/64 scope link
valid_lft forever preferred_lft forever

root@pve03:~# cat /etc/network/interfaces
auto lo
iface lo inet loopback

iface enp4s0f0 inet manual

iface enp4s0f1 inet manual

auto bond0
iface bond0 inet manual
slaves enp4s0f0 enp4s0f1
bond_miimon 100
bond_mode active-backup

auto vmbr0
iface vmbr0 inet static
address 10.10.32.3
netmask 255.255.240.0
gateway 10.10.47.254
bridge_ports bond0
bridge_stp off
bridge_fd 0

auto vlan439
iface vlan439 inet manual
vlan_raw_device bond0

auto vmbr1
iface vmbr1 inet static
address 10.10.126.53
netmask 255.255.255.0
bridge_ports vlan439
bridge_stp off
bridge_fd 0
network 10.10.126.0
post-up ip route add table vlan439 default dev vmbr1
post-up ip rule add from 10.10.126.0/24 table vlan439
post-down ip route del table vlan439 default dev vmbr1
post-down ip rule del from 10.10.126.0/24 table vlan439
root@pve03:~#


here I read something suspicious

root@pve03:~# systemctl status networking.service
● networking.service - Raise network interfaces
Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Mon 2018-12-10 10:51:57 CET; 3h 31min ago
Docs: man:interfaces(5)
Process: 2397 ExecStart=/sbin/ifup -a --read-environment (code=exited, status=1/FAILURE)
Process: 2384 ExecStartPre=/bin/sh -c [ "$CONFIGURE_INTERFACES" != "no" ] && [ -n "$(ifquery --read-environment --list --exclude=lo)" ] && udevadm settle (code=exited, status=0/SUCCESS)
Main PID: 2397 (code=exited, status=1/FAILURE)
CPU: 75ms

Dec 10 10:51:57 pve03 systemd[1]: Starting Raise network interfaces...
Dec 10 10:51:57 pve03 ifup[2397]: Waiting for vmbr1 to get ready (MAXWAIT is 2 seconds).
Dec 10 10:51:57 pve03 ifup[2397]: RTNETLINK answers: File exists
Dec 10 10:51:57 pve03 ifup[2397]: ifup: failed to bring up vmbr1
Dec 10 10:51:57 pve03 systemd[1]: networking.service: Main process exited, code=exited, status=1/FAILURE
Dec 10 10:51:57 pve03 systemd[1]: Failed to start Raise network interfaces.
Dec 10 10:51:57 pve03 systemd[1]: networking.service: Unit entered failed state.
Dec 10 10:51:57 pve03 systemd[1]: networking.service: Failed with result 'exit-code'.
root@pve03:~# ^C


but the network works just fine.. I'm connected to the server via SSH and it can ping google.com

root@pve03:~# ping google.com
PING google.com (216.58.205.46) 56(84) bytes of data.
64 bytes from mil04s24-in-f14.1e100.net (216.58.205.46): icmp_seq=1 ttl=55 time=7.18 ms
64 bytes from mil04s24-in-f14.1e100.net (216.58.205.46): icmp_seq=2 ttl=55 time=6.98 ms
^C
--- google.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 6.988/7.085/7.182/0.097 ms
root@pve03:~#


upload_2018-12-10_14-31-50.png

What's the reason behind that fail?
 
Last edited:
Stefano Scoppa said:
post-up ip route add table vlan439 default dev vmbr1
post-up ip rule add from 10.10.126.0/24 table vlan439
post-down ip route del table vlan439 default dev vmbr1
post-down ip rule del from 10.10.126.0/24 table vlan439
Click to expand...
* why do you need the post-up/post-down lines here? (the cidrs for vmbr0 and vmbr1 are non-overlapping)
* i guess that the `address/netmask` lines in the vmbr1 stanza already add the route for 10.10.126.0/24, and the post-up/down lines provoke the `RTNETLINK answers: File exists` error (which is the reason, for the failed networking.service)
 
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Reactions: Stefano Scoppa
Hi Stoiko,

you're right.
we commented the mentioned lines and now the network service is up and running.

//from /etc/network/interfaces
auto vmbr1
iface vmbr1 inet static
address 10.10.126.53
#netmask 255.255.255.0
bridge_ports vlan439
bridge_stp off
bridge_fd 0
network 10.10.126.0
#post-up ip route add table vlan439 default dev vmbr1
#post-up ip rule add from 10.10.126.0/24 table vlan439
#post-down ip route del table vlan439 default dev vmbr1
#post-down ip rule del from 10.10.126.0/24 table vlan439
root@pve03:~#

root@pve03:~# systemctl status networking.service
● networking.service - Raise network interfaces
Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor preset: enabled)
Active: active (exited) since Mon 2018-12-10 16:34:40 CET; 41min ago
Docs: man:interfaces(5)
Process: 1026 ExecStart=/sbin/ifup -a --read-environment (code=exited, status=0/SUCCESS)
Process: 994 ExecStartPre=/bin/sh -c [ "$CONFIGURE_INTERFACES" != "no" ] && [ -n "$(ifquery --read-environment --list --exclude=lo)" ] && udevadm settle (code=exited, status=0/SUCCESS)
Main PID: 1026 (code=exited, status=0/SUCCESS)
Tasks: 0 (limit: 4915)
Memory: 0B
CPU: 0
CGroup: /system.slice/networking.service

Dec 10 16:34:34 pve03 systemd[1]: Starting Raise network interfaces...
Dec 10 16:34:40 pve03 ifup[1026]: ifup: waiting for lock on /run/network/ifstate.vmbr0
Dec 10 16:34:40 pve03 ifup[1026]: ifup: waiting for lock on /run/network/ifstate.vmbr1
Dec 10 16:34:40 pve03 systemd[1]: Started Raise network interfaces.
root@pve03:~#
 
Glad it worked! If you like, it'd be nice if you set the Thread to SOLVED - that way other users know what to expect when seeing it!
Thanks!
 
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