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[Stéphane Graber <stgraber@xxxxxxxxxxxx>]

Public bug reported:

When using dnsmasq with Network Manager (DNS=dnsmasq in the config) and
a VPN that's not configured as "Use VPN only for resources on its
network" (default configuration), the dnsmasq configuration ends up
being wrong.

I'd have expected the default DNS server to be the one received from the
VPN connection instead of the one from the current wired/wireless
network as that one isn't reachable.

So in a setup where VPN doesn't provide the default gateway, DNS should be: 
 - DNS queries for anything on the VPN network => DNS server from VPN
 - Everything elsse => DNS server from current wired/wireless network

In a setup where the default gateway is the VPN
 - Everything => DNS server from VPN

** Affects: network-manager (Ubuntu)
     Importance: High
         Status: Triaged

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https://bugs.launchpad.net/bugs/898224

Title:
  Wrong dnsmasq configuration when VPN is set as default gateway

Status in “network-manager” package in Ubuntu:
  Triaged

Bug description:
  When using dnsmasq with Network Manager (DNS=dnsmasq in the config)
  and a VPN that's not configured as "Use VPN only for resources on its
  network" (default configuration), the dnsmasq configuration ends up
  being wrong.

  I'd have expected the default DNS server to be the one received from
  the VPN connection instead of the one from the current wired/wireless
  network as that one isn't reachable.

  So in a setup where VPN doesn't provide the default gateway, DNS should be: 
   - DNS queries for anything on the VPN network => DNS server from VPN
   - Everything elsse => DNS server from current wired/wireless network

  In a setup where the default gateway is the VPN
   - Everything => DNS server from VPN

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