FreeBSD does not reply to IPv6 Neighbor Solicitations

[Victor Sudakov]

Lutz Donnerhacke wrote:
> > > May you be able to capture the icmp6 traffic of this interface with
> > > respect to ND? I'm really interested in seeing, that the box does
> > > not respond to a given NS query.
> > 
> > Here you are http://admin.sibptus.ru/~vas/nd1.pcapng
> 
> The device, where the capture was taken does not respond to the NS packet.

So your interpretation agrees with mine, that's great.

> This might be caused by:
>  a) the device has a different configured IP address, than requested

I have already published the output of `ifconfig re1`, here it is again,
do you think anything important is missing? This is the very interface
where the capture was taken:

$ ifconfig re1
re1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=8209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC,LINKSTATE>
        ether c4:12:f5:33:c9:7c
        inet 192.168.170.5/24 broadcast 192.168.170.255
        inet6 fe80::c612:f5ff:fe33:c97c%re1/64 scopeid 0x2
        inet6 2001:470:ecba:3::5/64
        media: Ethernet autoselect (1000baseT <full-duplex>)
        status: active
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
$


>  b) the network card does not listen to the multicast group, which is
>     used by the request 

Why could that be? Hardware problem or software/FreeBSD glitch?

> (you see it only due to the promisc mode of the
>     capture). But this is unlikely (due to the promisc mode)
>  c) your system is broken

Very likely. That's why I'm here looking for advice and enlightenment.

-- 
Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
2:5005/49 at fidonet http://vas.tomsk.ru/
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