network-manager-openvpn doesn't adequately route reverse DNS lookups of VPN IP addresses to the VPN nameserver

[Robert Sander]

I have configured an OpenVPN tunnel with a manual route to 192.168.48.0/20 and a DNS server at 192.168.48.2.

Network-Manager updates the dnsmasq config in /var/run/nm-dns-dnsmasq.conf with the line

server=/48.168.192.in-addr.arpa/192.168.48.2

but misses all other /24 that are contained in this /20 (49 - 63.168.192.in-addr.arpa).

This results in not being able to reverse resolve IP addresses from this network (except the first 256).

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: network-manager-openvpn 0.9.4.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-35.34-lowlatency 3.2.34
Uname: Linux 3.2.0-35-lowlatency x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
Date: Tue Jan 8 14:36:15 2013
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MarkForUpload: True
SourcePackage: network-manager-openvpn
UpgradeStatus: No upgrade log present (probably fresh install)