radvd only sends a router lifetime of 0

[Colum31]

Hello,

with my config:

interface ipoe.666 
{
	
    AdvDefaultLifetime 1800;
    MaxRtrAdvInterval 60;
    MinRtrAdvInterval 30;
    AdvSendAdvert on;
    AdvRASolicitedUnicast on;
	
    AdvSendAdvert on;
    AdvManagedFlag on;
    AdvOtherConfigFlag on;

    prefix 2001:db8:1234:8000::/64
    {
        AdvOnLink on;
        AdvAutonomous off;
        AdvRouterAddr off;
    };
};

all RA have a router lifetime of 0. It does not matter which values I plug into AdvDefaultLifetime.

Is this a bug or am I missing something?

I have built radvd from source:

Version: 2.19

Compiled in settings:
default config file "/etc/radvd.conf"
default pidfile "/var/run/radvd.pid"
default logfile "/var/log/radvd.log"
default syslog facility 24

[robbat2]

Can you please include the output of ip -6 addr (mask out the first 4-6 octets of your non-fe80 addresses for privacy.

Also, are you sure that /proc/sys/net/ipv6/conf/all/forwarding or per-interface variable is enabled?