SLAAC not working

[Andrey V. Elsukov]

On 03.09.2017 09:20, Greg Rivers wrote:
> Aside from ruling out the MTU option in the RAs as the cause, I've
> made little progress on finding the problem.
> 
> Can anyone explain the use of net.inet6.icmp6.nd6_debug=1 for NDP
> debugging? I get no log output at all.

I just tried:
# sysctl net.inet6.icmp6.nd6_debug=1
net.inet6.icmp6.nd6_debug: 0 -> 1
# ifconfig lagg0 inet6 fe80::1/64
# dmesg | tail
lagg0: got interface identifier from itself
lagg0: ifid: e6:a7:a0:ff:fe:8e:16:bf
lagg0: starting DAD for fe80:4::e6a7:a0ff:fe8e:16bf
lagg0: DAD complete for fe80:4::e6a7:a0ff:fe8e:16bf - no duplicates found
lagg0: starting DAD for fe80:4::1
lagg0: DAD detected duplicate IPv6 address fe80:4::1: NS
in/out/loopback=0/1/0, NA in=1
lagg0: DAD complete for fe80:4::1 - duplicate found
lagg0: manual intervention required

As you can see, it works.

-- 
WBR, Andrey V. Elsukov

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