resolvers in ipv6 identifying dns open - nanog
TRANSCRIPT
![Page 1: Resolvers in IPv6 Identifying DNS Open - NANOG](https://reader036.vdocuments.site/reader036/viewer/2022070307/62be9b52a0016b1b856e7e70/html5/thumbnails/1.jpg)
Identifying DNS Open Resolvers in IPv6
Dario Gomez dario at lacnic dot netAlejandro Acosta alejandro at lacnic dot net
![Page 2: Resolvers in IPv6 Identifying DNS Open - NANOG](https://reader036.vdocuments.site/reader036/viewer/2022070307/62be9b52a0016b1b856e7e70/html5/thumbnails/2.jpg)
What is all this about?
Simple: as you know identifying Open Recursive DNS Servers in the IPv4 world is very easy, we needed to tried a different approach in IPv6
![Page 3: Resolvers in IPv6 Identifying DNS Open - NANOG](https://reader036.vdocuments.site/reader036/viewer/2022070307/62be9b52a0016b1b856e7e70/html5/thumbnails/3.jpg)
Ok.., too much talk. What is the approach you previously mentioned !
Step 1
![Page 4: Resolvers in IPv6 Identifying DNS Open - NANOG](https://reader036.vdocuments.site/reader036/viewer/2022070307/62be9b52a0016b1b856e7e70/html5/thumbnails/4.jpg)
What are going to be the final results.- # of IPv6 Resolvers identified .- % of IPv6 Resolvers identified per RIR.- % of IPv6 OPEN IPv6 Resolvers identified .- % of IPv6 OPEN IPv6 Resolvers identified by RIR .- We also expect to identify some more information
![Page 5: Resolvers in IPv6 Identifying DNS Open - NANOG](https://reader036.vdocuments.site/reader036/viewer/2022070307/62be9b52a0016b1b856e7e70/html5/thumbnails/5.jpg)
Summary of the results
Total IPv6 DNS servers
Open IPv6 DNS servers
![Page 6: Resolvers in IPv6 Identifying DNS Open - NANOG](https://reader036.vdocuments.site/reader036/viewer/2022070307/62be9b52a0016b1b856e7e70/html5/thumbnails/6.jpg)
Graphs (½)
![Page 7: Resolvers in IPv6 Identifying DNS Open - NANOG](https://reader036.vdocuments.site/reader036/viewer/2022070307/62be9b52a0016b1b856e7e70/html5/thumbnails/7.jpg)
Graphs (2/2)
![Page 8: Resolvers in IPv6 Identifying DNS Open - NANOG](https://reader036.vdocuments.site/reader036/viewer/2022070307/62be9b52a0016b1b856e7e70/html5/thumbnails/8.jpg)
Miscellaneous findingNumber of resolvers per /64: 2001:XXXX:XXXX:2/64 62
2a02:XXXX:0:XXXX/64 38
2a02:XXXX:0:XXXX/64 38
2001:XXXX:52:XXXX/64 34
2a02:XXXX:0:XXXX/64 32
![Page 9: Resolvers in IPv6 Identifying DNS Open - NANOG](https://reader036.vdocuments.site/reader036/viewer/2022070307/62be9b52a0016b1b856e7e70/html5/thumbnails/9.jpg)
What we were looking for
![Page 10: Resolvers in IPv6 Identifying DNS Open - NANOG](https://reader036.vdocuments.site/reader036/viewer/2022070307/62be9b52a0016b1b856e7e70/html5/thumbnails/10.jpg)
What we were looking for
30-09-2018|NO|2001:xxxx:yyyy::53| recursion Timed out while resolving with |****|arin|CA30-09-2018|NO|2001:xxxx:yyyy::26| recursion Timed out while resolving with |****|arin|CA30-09-2018|NO|2001:xxxx:yyyy::21| recursion Timed out while resolving with |****|arin|CA30-09-2018|NO|2001:xxxx:yyyy:16c4| recursion Looks like query refused when resolving with |****|arin|US30-09-2018|NO|2001:xxxx:yyyy:16c5| recursion Looks like query refused when resolving with |****|arin|US
![Page 11: Resolvers in IPv6 Identifying DNS Open - NANOG](https://reader036.vdocuments.site/reader036/viewer/2022070307/62be9b52a0016b1b856e7e70/html5/thumbnails/11.jpg)
What we were looking for
![Page 12: Resolvers in IPv6 Identifying DNS Open - NANOG](https://reader036.vdocuments.site/reader036/viewer/2022070307/62be9b52a0016b1b856e7e70/html5/thumbnails/12.jpg)
What we were looking for (good news)
We do have evidence of ISPs that have fixed their servers !!
![Page 13: Resolvers in IPv6 Identifying DNS Open - NANOG](https://reader036.vdocuments.site/reader036/viewer/2022070307/62be9b52a0016b1b856e7e70/html5/thumbnails/13.jpg)
Next steps- Integration with main
Lacnic system (milacnic)- Automation of some stats
in our portal- Publish in open data
format some statistics- Recently trying to find
squats prefixes with a recursive DNS
![Page 14: Resolvers in IPv6 Identifying DNS Open - NANOG](https://reader036.vdocuments.site/reader036/viewer/2022070307/62be9b52a0016b1b856e7e70/html5/thumbnails/14.jpg)
Questions / Comments