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[tor-bugs] #5974 [Tor Directory Authority]: Add configuration option for indicating if a directory authority is on IPv6 or not
#5974: Add configuration option for indicating if a directory authority is on IPv6
or not
-------------------------------------+--------------------------------------
Reporter: ln5 | Owner: ln5
Type: enhancement | Status: new
Priority: normal | Milestone:
Component: Tor Directory Authority | Version:
Keywords: ipv6 | Parent:
Points: | Actualpoints:
-------------------------------------+--------------------------------------
Background from #5534:
TODO: Add a configuration option telling tor if it's supposed to
have IPv6 connectivity. This will be something like
AuthorityHasIPv6Connectivity 0|1|auto. Clients and ordinary relays
will have to detect this.
This should be an option for authorities only for use until we have
good automatic detection of IPv6 connectivity.
The idea is that an authority with this option set to 0 will emit "a"
lines with IPv6 relay addresses without performing reachability tests.
The reasoning behind it is that relays on IPv6 shouldn't be punished
by directory authorities not on IPv6.
Regarding its default value, I think that 'auto' would be a good
default. Once we have automatic detection in place, leaving this
option out will make no difference. In the meantime 'auto' will turn
into '0' and authorities will by default let "a" lines through.
Regarding automatic detection, I wonder how we can do that without
leaking information. Is it possible? If not, how much can we leak?
Should we add more config option(s) for enabling more leaky strategies?
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/5974>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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