[systemd-devel] radvd and sysctl systemd under Debian

[Colin Guthrie]

William Hay wrote on 08/01/16 16:44:
> Which has CONFIG_IPV6=y meaning the various IPV6 sysctls should be available
> as soon as the /proc filesystem is mounted.
> 
> /etc/sysctl.d/ contains only 99-sysctl.conf 
> which is a symlink pointing to /etc/sysctl.conf
> 
> which contains the following uncommented lines:
> net.ipv4.ip_forward=1
> net.ipv6.conf.default.forwarding=1
> net.ipv6.conf.all.forwarding=1
> net.ipv6.conf.ppp0.accept_ra=2
> 
> However on boot net.ipv6.conf.all.forwarding is set to 0

This could be something related to networkd which might be changing the
ip forwarding status overriding these details.

If you are not using it, I would recommend disabling it to see if it
helps, but it should be possible to configure it accordingly too.

There were some discussions recently about the defaults networkd imposes
so it could be a that a newer version would also solve the issues, but
my memory of that discussion is vague and thus you shouldn't trust me or
what I say above.

Other more knowledgeable folk here (e.g. Tom) will be able to answer
more authoritatively  on the matter!

Col


-- 

Colin Guthrie
colin(at)mageia.org
http://colin.guthr.ie/

Day Job:
  Tribalogic Limited http://www.tribalogic.net/
Open Source:
  Mageia Contributor http://www.mageia.org/
  PulseAudio Hacker http://www.pulseaudio.org/
  Trac Hacker http://trac.edgewall.org/