sgsnemu: Print warnings on broken IPv6 configuration (acept_ra)

When sgsnemu is used for an IPv6 pdp context, we rely on the router
discovery procedure and SLAAC to set the correct IPv6 address/prefix
on the tun device.  This requires the system to be configure to accept
router-advertisements on the tun device.  Let's print a warning
if accept_ra for the specific tun device is set to a wrong value.

We're leaving it up to the user to either set a system-wide
/proc/sys/net/ipv6/conf/default/accept_ra or to configure this in an
ip-up script used together with sgsnemu.

Change-Id: I563092ca35bc74f035a5023e11256779aac46e11

0 files changed, 0 insertions, 0 deletions