dhcpcd ipv6ra_autoconf and sysctl net.ipv6.conf.*.accept_ra
Harald Albrecht
Tue Feb 14 14:38:10 2017
Hi,
from the conf man page as well as the dhcpcd source I saw that
ipv6ra_autconf is on by default. Now, on a Linux router with sysctl
default net.ipv6.conf.*.accept_ra=1 this would cause dhcpcd run SLAAC,
with the kernel *not* doing SLAAC on a router with forwarding=1.
Now, on an IPv6 host with forwarding=0, wouldn't this cause a conflict
by both the kernel running SLAAC as well as dhcpcd in reaction to a RA
with a PIO? Could this be a reason why I get a NETLINK "file already
exists" error with recent dhcpcd versions? (albeit on a router with
accept_ra=2, so this does SLAAC in the kernel too)
Can someone please shed some insight onto this situation?
With best regards,
Harald
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