[tor-relays] One IPv4 address, 1Gbit connection

Tom van der Woerdt info at tvdw.eu
Tue Jul 1 13:57:15 UTC 2014

Roman Mamedov schreef op 01/07/14 15:48:
> On Tue, 01 Jul 2014 22:36:10 +1000
> Tim <t_ebay at icloud.com> wrote:
>> Tom,
>> Why not run multiple tor relays on different ports on the same IPv4 address?
>> For example, you could run 6 relays on 6 different ports on your IPv4 address (6 x 180 Mpbs > 1 Gbps).
>> This would also utilise your 4 cores much more efficiently than running 2 relays (each relay will only ever use 1 core for most operations).
> Because more than two relays per IPv4 address is ignored by the network; and
> that was the whole point of the question.
> I suggested some time ago that with the scarcity of IPv4 *and* abundance of
> multi-core CPUs that the Tor developers should really consider raising the
> relays-per-IP limit from 2 to at least 3 or 4.
> Sure one can use IPv6, but I doubt there's any serious amounts of traffic on
> IPv6 via Tor, so it will not help  with the original request to do something
> which would help better utilize the full available bandwidth.

I tested this yesterday: running three relays on different IPv6 address 
but with one shared IPv4 address does not allow you to bypass this limit.

Let's hope that ISPs never introduce carrier-grade NAT... :-)


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