[Expired for network-manager (Ubuntu) because there has been no activity
for 60 days.]
** Changed in: network-manager (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/978957
Title:
networking slow after changing networks while machine suspended
Status in “network-manager” package in Ubuntu:
Expired
Bug description:
If I change networks, for example by suspending my laptop while
connected to my work subnet on 192.168.10.x and resuming so that I
connect to my home network on 10.1.1.x, the network becomes very
sluggish for anything that requires dns resolution. For instance, just
typing the 'route' command takes a long time to complete (normally it
is instantaneous); pings take a long time; and google-earth reports
network errors.
My guess is that dnsmasq-base is causing this. /etc/resolv.conf
contains only "nameserver 127.0.0.1", and it seems likely that dnsmasq
is retaining the old (invalid) dns information and only trying the
newly-acquired (correct) dns server after the first one times out.
sudo dhclient doesn't help (it just complains that a file already
exists and suggests that I can restart smbd with the restart command).
A reboot fixes the problem, but it is ridiculous to have to do this.
Unfortunately network-manager now depends on dnsmask-base, so it isn't
possible to remove it.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: network-manager 0.9.4.0-0ubuntu2
Uname: Linux 3.4.0-rc2-git-20120410.1707 x86_64
ApportVersion: 2.0.1-0ubuntu1
Architecture: amd64
Date: Wed Apr 11 22:02:17 2012
EcryptfsInUse: Yes
IfupdownConfig:
auto lo
iface lo inet loopback
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
IpRoute:
default via 10.1.1.1 dev eth0 proto static
10.0.0.0/8 dev eth0 proto kernel scope link src 10.1.1.11 metric 1
10.0.0.0/8 dev wlan0 proto kernel scope link src 10.1.1.8 metric 2
169.254.0.0/16 dev eth0 scope link metric 1000
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
ProcEnviron:
LANGUAGE=en_AU:en
TERM=xterm
PATH=(custom, no user)
LANG=en_AU.UTF-8
SHELL=/bin/bash
SourcePackage: network-manager
UpgradeStatus: Upgraded to precise on 2012-03-02 (40 days ago)
nmcli-dev:
DEVICE TYPE STATE DBUS-PATH
eth0 802-3-ethernet connected
/org/freedesktop/NetworkManager/Devices/1
wlan0 802-11-wireless connected
/org/freedesktop/NetworkManager/Devices/0
nmcli-nm:
RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE
WIFI WWAN-HARDWARE WWAN
running 0.9.4.0 connected enabled enabled
enabled enabled disabled
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