IPv6 LXC SLAAC tokens

[efeu]

Hi,
I'm running a debian10 lxc container and want to set the ipv6 token. But when running
ip token set ::xxx dev eth0
inside the container it returns
Error: ipv6: Router advertisement is disabled on device.

But actual it does get an IP from SLAAC.

inet6 xxx/64 scope global dynamic mngtmpaddr noprefixroute

 

[efeu]

The solution is to set
echo 1 > /proc/sys/net/ipv6/conf/eth0/accept_ra (or 2)
inside the container

    0 Do not accept Router Advertisements.
    1 Accept Router Advertisements if forwarding is disabled.
    2 Overrule forwarding behaviour. Accept Router Advertisements even if forwarding is enabled.