[tor-relays] IPv6 - status

[Marcin Gondek]

Hi,

Sorry about top-posting, it's normal with Outlook <g>

I'm not C developer but I can be someking tester.

But lack of full IPv6 support makes that relays operators doesn't really care about running/enabling IPv6.
When we will have a full IPv6 support then more nodes will be available. The lack of IPv4 addresses makes that IPv6-based tor will be greather. I don't know how I can help with that. I'm keeping finger crossed that IPv6 full support in Tor will be available in near future.

The clue for me is that currently is no way to run IPv6-node.

Regards,

-- 
Marcin Gondek / Drixter
http://fido.e-utp.net/
AS56662

-----Original Message-----
From: tor-relays [mailto:tor-relays-bounces at lists.torproject.org] On Behalf Of Linus Nordberg
Sent: Friday, September 12, 2014 9:15 AM
To: tor-relays at lists.torproject.org
Subject: Re: [tor-relays] IPv6 - status

Marcin Gondek <drixter at e-utp.net> wrote
Thu, 11 Sep 2014 16:58:49 +0000:

| Hi,
| 
| What is the current state of IPv6?
| 
| ==cut==
| Relays to relays
| 
| Relays talk to other relays. The work with relays talking to other 
| relays over IPv6 has not been started.
| ==cut==
| 
| Is there any plans to start? How I can help?

No plans that I'm aware of. If you know C you can prepare a patch, run it in a Chutney test network and post it on #4565 [0].


| ==cut==
| Directory authorities on IPv6
| 
| Clients and relays talk to directory authorities. The work with making 
| directory authorities reachable over IPv6 has not been started.
| 
| This work will be tracked in #6027.
| ==cut==
| 
| Same as above?

Seems like Nick has a patch, see the ticket.


| Clue is when it will be possible to run pure IPv6 relay/guard.

We need "a substantial amount" of relays being able to make outgoing
IPv6 connections and successfully publishing an IPv6 ORPort before we can allow relays to publish _only_ an IPv6 ORPort.

For guards, a client connecting over IPv6 needs a large enough set of guards to choose from. Today that number is 127 [1] (about 8%). What a large enough set is I don't know, but I'd say we're not there yet.

For middle relays, the anonymity set is limited to the number of guards with IPv6 connectivity -- only these can connect to IPv6-only middle relays. This figure is harder to estimate.

For exit relays, the reasoning is similar to the one for middle relays.


[0] https://trac.torproject.org/projects/tor/ticket/4565
[1] cat cached-consensus | awk '/^r /{r=$0; a=""}/^a /{a=$0}/^s .*Guard/{if (a) print r, a}' | wc -l _______________________________________________
tor-relays mailing list
tor-relays at lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays