Re: [tor-relays] IPv6 ORPort autodetection on relays (Was: Re: Running 2 relays with 0.4.0.2_alpha [err] descriptor at 0x8a0acdb0830 begins with unexpected string "".)

[Roman Mamedov <rm@xxxxxxxxxxx>]

On Fri, 1 Mar 2019 11:54:31 +1000
teor <teor@xxxxxxxxxx> wrote:

> > I'd love that too -- but the thing I am thinking now is how to address
> > the temporary addresses that are used in operating systems (in some my
> > default, in some not by default)? Those addresses change over time
> > randomly, and maybe more often than a relay would find useful.
> > 
> > Is there a flag or something that can make an application tell the
> > difference between a temporary IPv6 address and a static one, for example
> 
> If temporary addresses are allocated from temporary address ranges, Tor
> should ignore them. (Or we can teach it to ignore them.)
> 
> If they are allocated from permanent address ranges, then the operator
> needs to tell Tor which address to use.

There are no globally designated "temporary" or "permanent" address ranges.
Temporary addresses are created by the OS in the same /64 subnet received
from the upstream router as other IPs. See https://tools.ietf.org/html/rfc4941
(There are the ULA and Link-local ranges, but those are unrelated to the
temporary/permanent question).

-- 
With respect,
Roman
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