On Tue, 2016-02-09 at 19:21 +0100, Olaf Hering wrote:
> On Fri, Feb 05, Dan Williams wrote:
> 
> > Can you grab some NM log output?  the NetworkManager openvpn plugin
> > does have support for IPv6, but we need to figure out if:
> > 
> > 1) NM or NM-openvpn is somehow ignoring your request to have them
> > ignore IPv6 configuration
> 
> In nm-connection-editor I had set IPv6 to "Ignore", which I
> interpreted
> as "whenever the peer offers ipv6, just ignore that offering". So
> this
> interpretion of "ignore" was wrong. Not sure which part of the system
> does actually apply the offered addresses and routes. Are you saying
> there might be some sort of autoconfiguration going on, like it could
> be
> done for wired connections?

It could be better documented, it really means "don't do anything IPv6
related in NetworkManager, but don't prevent anything else either".  So
NM isn't touching IPv6, but the kernel also has IPv6 autoconfiguration
capability and that's what is likely running on the interface outside
of NetworkManager.

> Once I changed it to "Automatic (VPN)" the "Routes ..." knob
> appeared.

Now you've allowed NM to handle the IPv6 configuration on the
interface.

> Here the default is for "Use the connection only for resources for
> this
> network" is disabled. Once I checked that box, the default route is
> not
> applied. I did the same already for ipv4 to avoid that all traffic
> goes
> through tun0.

Sounds right.

> For short: now that I have the checkbox for "Use the connection only
> for
> resources for this network" enabled my connection works as expected.
> 
> If something can be done about the misleading "Ignore", that would be
> great.

Yeah, we should add a 'disabled' too.

Dan

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