[tor-relays] Questions about relays on IPv6

Charly Ghislain charlyghislain at gmail.com
Wed Jun 19 09:00:18 UTC 2019

Basically, assuming relays communicate between them over ipv4, guards
and exits supporting ipv6 would allow clients with ipv6-only
connectivity to join the network, and establish connections to
ipv6-aware servers.
So I guess it makes sense if you relay ever gets the guard flag.

On Wed, Jun 19, 2019 at 10:21 AM <tschador at posteo.de> wrote:
> Hello,
> I have enabled IPv6 on my Relay [1] and setup a new one [2].
> Both got the additional Flag 'ReachableIPv6' - fine.
> In the 'IPv6 HOWTO' [3] I found:
> "Since clients only use the ORPort (because it's more anonymous2), and
> relays only use IPv4, there is no reason to configure an IPv6 DirPort -
> if you do, it will never be used."
> Hmm - 'relays only use IPv4' seems to be true. Until now I can see only
> incoming connections from the authorities; no other IPv6 and no outgoing
> IPv6 connection while on [1] there are over 6800 und on [2] over 4800
> IPv4 connections!
> So I wonder: Does it make sense to setup IPv6 non-exit relays when IPv6
> is not used? Or must I wait patiently - how long?
> Thanks.
> [1] 6A7551EEE18F78A9813096E82BF84F740D32B911 (Tormachine)
> [2] 9556D34D97C0382E8B9901B036ACAA2F2B453FEC (Tormachine2)
> [3] https://trac.torproject.org/projects/tor/wiki/doc/IPv6RelayHowto
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