Re: [tor-relays] Auto-discovered IPv6 address [...] has not been found reachable.

[Onion Operator <flev@xxxxxxxxxx>]

> On 14/03/2022 11:07 s7r <s7r@xxxxxxxxxx> wrote:
> 
> Onion Operator wrote:
> 
> >> What if you configure the IPv6 address by hand in torrc?
> > 
> > for months my torrc had
> > 
> >    ORPort 443 IPv4Only
> >    ORPort [2a02:a446:5ef1:1:d072:53ff:fef4:ea59]:443 IPv6Only
> > 
> >    Address XXX
> > 
> > and read in the logs:
> > 
> >    Unable to find IPv6 address for ORPort 443. You might want to specify
> >    IPv4Only to it or set an explicit address or set Address.
> > 
> > (XXX had only the A record)
> 
> Add a second Address entry with the IPv6 address.
> 
> so:
> ORPort 443 IPv4Only
> ORPort [2a02:a446:5ef1:1:d072:53ff:fef4:ea59]:443 IPv6Only
> Address XXX
> Address [2a02:a446:5ef1:1:d072:53ff:fef4:ea59]
> 
> Where XXX is the hostname that has only an `A` record.
> 
> Or add an `AAAA` record with the IPv6 address to XXX hostname and use a 
> single Address entry with `Address XXX`.
> 
> See if this works for you.
> 

Yes, it works! Thanks :)

I went for

ORPort 443 IPv4Only
ORPort [2a02:a446:5ef1:1:d072:53ff:fef4:ea59]:443 IPv6Only
Address XXX

Where XXX has both A and AAAA records.

> When IPv6 autodiscovery that was badly needed was coded maybe this 
> particular use case was not considered.
> 
> I guess you IPv4 is Dynamic and IPv6 is static, which is why you use XXX 
> with some kind of DynamicDNS?

The IPv4 address is very stable. I think it's now pinned to me, its
reverse points to 77-162-229-73.fixed.kpn.net

> 
> Please test and let us know if it worked with the indications above, 
> otherwise let me know so I'll open a Bug ticket.
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