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Re: [tor-talk] IPv6 /48 for OnionCat



On 2016-08-28 08:04, Mirimir wrote:
> I see in the OnionCat wiki:[0]
> 
> | We map every unique .onion URL to a unique IPv6 address in
> | deterministic reversible manner. ... We generated the static
> | IPv6 prefix FD87:D87E:EB43::/48 according to ​RFC4193 ... Now
> | we can map e.g. 5wyqrzbvrdsumnok.onion directly to
> | FD87:D87E:EB43:edb1:8e4:3588:e546:35ca.
> 
> Is it possible to specify a different /48? I understand that would break
> routing from stock OnionCat. But that's actually the goal. Could one
> perhaps tweak the source?
> 
> [0] https://www.cypherpunk.at/onioncat_trac/wiki/OnionCat
> 


Hi!

Yes, you can specify a different network prefix. But be aware, that this
would break routing with other OnionCats, i.e. you'll create your own
private network.

The prefix is defined hard-coded as the cpp macro TOR_PREFIX in
ocat_netdesc.h. Just modify it up to your needs an recompile it.

Regards,
Bernhard

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