Network Manager will not let you set default route.

Bug #1558771 reported by James Burton on 2016-03-17
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
network-manager (Ubuntu)
Undecided
Unassigned

Bug Description

I am trying to set an ipv4 connection manually using network manager.

Network manager will not let me set the default route.

If I open the Routes dialog and enter:

Address Netmask Gateway Metric
0.0.0.0 0.0.0.0 192.168.56.1 0

The OK button is grayed out and I cannot save the route.

But if I enter:

Address Netmask Gateway Metric
192.168.0.0 255.255.255.0 192.168.56.1 0

The OK button activates and I can save it.

If I enter the routing information via the command line, it works as expected, so the problem is not an erroneous route, but with Network Manager not recognizing it as a valid route.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: network-manager 0.9.8.8-0ubuntu7.2
ProcVersionSignature: Ubuntu 3.13.0-83.127-generic 3.13.11-ckt35
Uname: Linux 3.13.0-83-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
CRDA: Error: [Errno 2] No such file or directory: 'iw'
CurrentDesktop: LXDE
Date: Thu Mar 17 16:09:44 2016
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2014-06-02 (654 days ago)
InstallationMedia: Lubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
IpRoute:
 default via 10.0.3.2 dev eth1 proto static
 10.0.3.0/24 dev eth1 proto kernel scope link src 10.0.3.15 metric 1
 172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1
 192.168.56.0/24 dev eth0 proto kernel scope link src 192.168.56.12 metric 1
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
 WimaxEnabled=true
RfKill:

SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.NetworkManager.NetworkManager.conf: 2016-01-13T12:37:45.965559
nmcli-con:
 NAME UUID TYPE TIMESTAMP TIMESTAMP-REAL AUTOCONNECT READONLY DBUS-PATH
 Internet (eth1) 21647322-5a3c-4429-9ebb-7046d2014228 802-3-ethernet 1458245381 Thu 17 Mar 2016 04:09:41 PM EDT yes no /org/freedesktop/NetworkManager/Settings/1
 vboxnet (eth0) b1848b72-66ee-4380-82c4-f81988f50f88 802-3-ethernet 1458245371 Thu 17 Mar 2016 04:09:31 PM EDT yes no /org/freedesktop/NetworkManager/Settings/0
nmcli-dev:
 DEVICE TYPE STATE DBUS-PATH
 eth1 802-3-ethernet connected /org/freedesktop/NetworkManager/Devices/1
 eth0 802-3-ethernet connected /org/freedesktop/NetworkManager/Devices/0
nmcli-nm:
 RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN
 running 0.9.8.8 connected enabled enabled enabled enabled disabled

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