[Bug 994575] [NEW] n-m registers VPN nameserver information twice

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I have a VPN set up in Network Manager, which worked well when my system
was running 11.10.

After upgrading to 12.04, I've noticed that DNS changes needed by the
VPN aren't happening.  Hosts that only resolve within the VPN won't
resolve, and hosts that are supposed to resolve with different IP
addresses inside the VPN don't.

I can see the new, proper nameserver configuration in /var/run/nm-dns-
dnsmasq.conf.  I can resolve properly if I query the name server
directly, i.e. "host <name-to-resolve> <vpn-dns-server-ip>".  And, if I
use that IP address instead of the name, I can successfully do things
like ssh.  But simple resolution appears to still be using the old name
server.

At one point, I killed off dnsmasq and wrote a new /etc/resolv.conf with
the VPN name servers.  That worked, but caused all manner of problems
later.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: network-manager 0.9.4.0-0ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-generic x86_64
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
Date: Fri May  4 09:04:23 2012
EcryptfsInUse: Yes
IfupdownConfig:
 auto lo
 iface lo inet loopback
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
IpRoute:
 default via 192.168.50.2 dev eth0  proto static 
 169.254.0.0/16 dev eth0  scope link  metric 1000 
 192.168.50.0/24 dev eth0  proto kernel  scope link  src 192.168.50.222  metric 1 
 192.168.50.0/24 dev wlan0  proto kernel  scope link  src 192.168.50.106  metric 2
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
 WimaxEnabled=true
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
RfKill:
 0: phy0: Wireless LAN
 	Soft blocked: no
 	Hard blocked: no
SourcePackage: network-manager
UpgradeStatus: Upgraded to precise on 2012-05-02 (1 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

** Affects: resolvconf (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-bug precise
-- 
n-m registers VPN nameserver information twice
https://bugs.launchpad.net/bugs/994575
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