[tor-relays] Debugging ipv6 conenctivity

Blicky tor at blicky.net
Sat Feb 23 14:02:18 UTC 2019


For how long have you advertised the v6 address? My relays also received
the UnreachableIpv6 flag shortly after I setup IPv6, but after 24 hours
that automatically turned into ReachableIPv6. I'm guessing it takes some
time for the measurements to take place and propagate.

I can reach your IPv6 address on that port, so the network configuration
is fine, at least.



On 2019-02-23, Charly Ghislain wrote:
> Hi all,
> My tor relay has got the UnreachableIpv6 flag set once i mentionned an
> OrPort with my ipv6 address.
> From what i can tell, my server is reachable over ipv6, and can contact the
> directory authorities through ipv6 (following the instructions found there:
> https://trac.torproject.org/projects/tor/wiki/TorRelayGuide#Makesurerelayportscanbereached
> ).
> The node is behind an haproxy that relays ipv6 traffic to natted ipv4 (with
> no logging for those concerned). It seems to work fine for web content over
> ipv6, and traffic on both ips (v4 and v6) goes through this channel.
> I can successfully telnet my node ORPort using my v6 address. The ports
> have been defined this way in torrc:
> ORPort NoAdvertise
> ORPort NoListen
> ORPort [2001:41d0:1:84bc::1]:9001 NoListen
> Is there a way to make a tor client connect to a specific relay to debug
> this kind of connectivity issues? Or any other mean?
> In the meantime ive removed the advertized ip6.
> Regards,
> Charly

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