network-manager:amd64 (1.2.2-0ubuntu0.16.04.4, 1.2.6-0ubuntu0.16.04.1)
I'm seeing a very similar problem, except I'm using a PPTP tunnel. I'm on a Mint MATE 18.1 distro. On approximately 3/8/2017 the network manager package was updated and about that time is when name resolution stopped working when connected to a PPTP tunnel. I can see that the ppp0 interface is getting a DHCP address from the remote end, and it is also receiving a DNS IP address for the remote network. That information gets populated into 'etc/ppp/resolv.conf' and the timestamp for that file corresponds to the date/time I establish the PPTP connection. I am able to reach machines on the remote network by IP address. This worked as of last week (approx 3/8/2017) and had been working for a year or more prior. I'm not sure how the local resolver stuff works, but it seems like the proper information is being retrieved from the remote end point (IP address, DNS info, etc.), but the local resolver is not pulling in the information. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1671606 Title: DNS server from vpn connection is not being used after network-manager upgrade to 1.2.6-0ubuntu0.16.04.1 Status in network-manager package in Ubuntu: Confirmed Bug description: I use my company's cisco vpn via network-manager in Ubuntu 16.04.2 LTS. After recent upgrade of network-manager:amd64 from version 1.2.2-0ubuntu0.16.04.4 to version 1.2.6-0ubuntu0.16.04.1 DNS resolution of VPN's server hostnames does not work. Roll back to version 1.2.2-0ubuntu0.16.04.4 solves the problem. Steps for reproducing: 1. upgrade network-manager:amd64 from version 1.2.2-0ubuntu0.16.04.4 to version 1.2.6-0ubuntu0.16.04.1 2. connect to VPN via network-manager applet 3. nslookop servername.internal --> ** server can't find servername.internal: NXDOMAIN 4. disconnect from VPN via network-manager applet 5. roll back network-manager via command: sudo apt-get install network-manager=1.2.2-0ubuntu0.16.04.4 6. restart network-manager via sudo service network-manager restart 7. connect to VPN via network-manager applet 8. nslookop servername.internal --> the server is resolved correctly ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: network-manager 1.2.6-0ubuntu0.16.04.1 ProcVersionSignature: Ubuntu 4.4.0-66.87-generic 4.4.44 Uname: Linux 4.4.0-66-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 CurrentDesktop: Unity Date: Thu Mar 9 19:49:55 2017 InstallationDate: Installed on 2015-10-05 (520 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true SourcePackage: network-manager UpgradeStatus: No upgrade log present (probably fresh install) nmcli-nm: RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN running 1.2.6 connected started full enabled enabled enabled enabled enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1671606/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

