Public bug reported:
I'm using Ubuntu 16.04 on a network where the DNS server is available on
both IPv4 and IPv6 (managed by a router running OpenWrt). As mentioned
in the dnsmasq manpage, I can see dnsmasq has both IPv4 and IPv6 entries
by running:
dig +short chaos txt servers.bind
I also have an IPv4-only OpenVPN connection configured through
NetworkManager (the VPN itself is IPv4-only, the NM connection is set to
Automatic for both IPv4 and IPv6), with no split-tunnelling. When I
connect to the VPN and query dnsmasq again, I see that the IPv4 entry
has been replaced by the VPN IPv4 DNS server, but the (local network)
IPv6 entry is still present.
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1615343
Title:
IPv6 DNS server not removed when connected to IPv4-only OpenVPN VPN
Status in network-manager package in Ubuntu:
New
Bug description:
I'm using Ubuntu 16.04 on a network where the DNS server is available
on both IPv4 and IPv6 (managed by a router running OpenWrt). As
mentioned in the dnsmasq manpage, I can see dnsmasq has both IPv4 and
IPv6 entries by running:
dig +short chaos txt servers.bind
I also have an IPv4-only OpenVPN connection configured through
NetworkManager (the VPN itself is IPv4-only, the NM connection is set
to Automatic for both IPv4 and IPv6), with no split-tunnelling. When I
connect to the VPN and query dnsmasq again, I see that the IPv4 entry
has been replaced by the VPN IPv4 DNS server, but the (local network)
IPv6 entry is still present.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1615343/+subscriptions
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