Re: Debugging SLAAC

Hello,

Le 12/11/2017 à 13:28, Alexander Koeppe a écrit :
> 
> just recently I've had issues that SLAAC didn't worked out for a while
> and started working again w/o knowing the reason.
> 
> I tried to sniff ICMPv6 packets, saw the RAs coming around every 5-6
> minutes, but my net adapter didn't configured itself with a GUA derived
> from the prefix in the RA.

Did you see Router Solicitation packets sent by the interface after the 
link was activated ?
Did the host set at least prefixes/routes from the RAs ?

What manages the interface ? Is SLAAC enabled for the interface in 
/proc/sys/net/ipv6/conf/ ?
Are NDP ICMPv6 packets allowed by the firewall rules ?

> Is there any possiblitiy to increase the debug level to troubleshoot
> issues with the address generation?
> 
> Checked dmesg, but didn't relveal much.

Did you see the message saying that no IPv6 routers were found ?