There are different heuristics that you can apply to reduce the size of the
search space. See Fernando Gont's work on the issue.
However, there is no way to brute force scan even a single /64 in a reasonable
amount of time.
Here at LACNIC we've searching for open resolvers in IPv6, see
https://labs.lacnic.net/Identificando-servidores-DNS-IPv6-Open-Resolvers/ (in
Spanish , Google translate is your friend)
Let me know if you have any questions about this work.
Carlos
via Newton Mail
[https://cloudmagic.com/k/d/mailapp?ct=pa&cv=10.0.25&pv=9&source=email_footer_2]
On Sun, Nov 03, 2019 at 12:15pm, Malick K. ALASSANE < [email protected]
[[email protected]] > wrote:
My objective for this study is to detect open DNS resolvers in the AFRINIC IP
space.
Le dim. 3 nov. 2019, à 16 h 05, JORDI PALET MARTINEZ via AfrIPv6-Discuss <
[email protected] [[email protected]] > a écrit :
Hi Malick,
That’s somehow, one of the “advantages” of IPv6, that make it much more
difficult.
If the operators and end-users are doing a good work, they will not be
assigning neither contiguous prefixes, neither contiguous prefixes/LANs,
neither contiguous hosts!
May be if you explain a bit more what you’re trying to achieve, we can give
some ideas.
Regards,
Jordi
@jordipalet
El 3/11/19 15:57, "Malick K. ALASSANE" < [email protected]
[[email protected]] > escribió:
Good morning, everyone!
I'm doing a study on afrinic's IP address blocks. I didn't have any constraints
with ipv4 address blocks. The use of the zmap tool allowed me to do a quick
scan on all available IPV4 addresses. Unfortunately, i don't know how to scan
IPV6 blocks without taking a long time. Nmap, can help me, but it could take
several years to finish. Zmap or Masscan don't support ipv6.
I would like to know if anyone has a solution to quickly scan ipv6 address
blocks to identify ipv6 servers that offer a service.
Thanks for your help!
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