Hi Job, And by the way could you please let me know what is the current status of implementing so called "IRR Lockdown" in NTT? If I remember correctly you planned in NTT to filter out route announcements for prefixes present in RIPE but not having correct Route Registry in RIPE. I'm just asking for my curiosity what is the current status for that plan? Regards, Rafał -----Original Message----- From: routing-wg [mailto:routing-wg-bounces@ripe.net] On Behalf Of Job Snijders Sent: Friday, June 03, 2016 10:26 AM To: Hank Nussbacher Cc: routing-wg@ripe.net Subject: Re: [routing-wg] Bogon ASN Filter Policy Dear Hank, On Fri, Jun 03, 2016 at 07:53:50AM +0300, Hank Nussbacher wrote:
On 02/06/2016 22:43, Job Snijders wrote:
Bogon ASNs are currently defined as following:
0 # Reserved RFC7607 23456 # AS_TRANS RFC6793 64496-64511 # Reserved for use in docs and code RFC5398 64512-65534 # Reserved for Private Use RFC6996 65535 # Reserved RFC7300 65536-65551 # Reserved for use in docs and code RFC5398 65552-131071 # Reserved 4200000000-4294967294 # Reserved for Private Use RFC6996 4294967295 # Reserved RFC7300
References: [3]: https://urldefense.proofpoint.com/v2/url?u=https-3A__www.iana.org_as signments_as-2Dnumbers_as-2Dnumbers.xhtml&d=CwIBAg&c=4ZIZThykDLcoWk- GVjSLm9hvvvzvGv0FLoWSRuCSs5Q&r=uSdRM1m6v9tUqQwN60nzfridakyp61O-UW1qU Yv1tD30FWDjrpwJLIAUAzixBHEl&m=HLy7uM0lDPsSRp8FdQB63oADyiOAGD6FIdn82m wGbMw&s=XLed_bmiDNrZhBhokPQiphHemz9v4tt9WumdCbpfIzE&e= [4]: https://urldefense.proofpoint.com/v2/url?u=http-3A__as2914.net_bogon -5Fasns_configuration-5Fexamples.txt&d=CwIBAg&c=4ZIZThykDLcoWk-GVjSL m9hvvvzvGv0FLoWSRuCSs5Q&r=uSdRM1m6v9tUqQwN60nzfridakyp61O-UW1qUYv1tD 30FWDjrpwJLIAUAzixBHEl&m=HLy7uM0lDPsSRp8FdQB63oADyiOAGD6FIdn82mwGbMw &s=dXt6rcsVW4C2mInLad5sgRnMPjbto86h_xcZWIQwdxs&e=
You guys are my heroes! If 4-5 tier-0 ISPs would do exactly this, bogus ASNs would disappear in a week.
GTT also committed to deploying the same filter: https://urldefense.proofpoint.com/v2/url?u=http-3A__mailman.nanog.org_pipermail_nanog_2016-2DJune_086081.html&d=CwIBAg&c=4ZIZThykDLcoWk-GVjSLm9hvvvzvGv0FLoWSRuCSs5Q&r=uSdRM1m6v9tUqQwN60nzfridakyp61O-UW1qUYv1tD30FWDjrpwJLIAUAzixBHEl&m=HLy7uM0lDPsSRp8FdQB63oADyiOAGD6FIdn82mwGbMw&s=jE5dtddA2esYPL2A5xBNFOXEKxJM2UME_CGPkbun0tM&e=
Instead everyone talks while > the problem gets larger (now over 5000): https://urldefense.proofpoint.com/v2/url?u=http-3A__www.cidr-2Dreport. org_as2.0_bogus-2Das-2Dadvertisements.html&d=CwIBAg&c=4ZIZThykDLcoWk-G VjSLm9hvvvzvGv0FLoWSRuCSs5Q&r=uSdRM1m6v9tUqQwN60nzfridakyp61O-UW1qUYv1 tD30FWDjrpwJLIAUAzixBHEl&m=HLy7uM0lDPsSRp8FdQB63oADyiOAGD6FIdn82mwGbMw &s=Cr08hxsI50KJyoGlekgDcCtBZfesRWF6U6Vqn8iBNJ8&e=
I'd like to clear up some potential for confusion: we only targetting what has been defined in the list at the top of this email, not what are considered "unallocated" ASNs. (Although we do monitor for that and resolve any adjacencies we might have with such ASNs). Below is a copy+paste from the weekly report which drives our outreach effort. We recognise two types of prefixes: "Problem prefixes" and "problems resolved by a less specific". It seems likely that the "saved by overlapping less-specific" ones are the result of accidental exposure of something that should remain internal, and the "problem prefixes" are likely to be misconfigurations or software issues. Hopefully, by the time we deploy the new policy, all of these have been resolved. If not, we're probbly looking at the low hundreds, not 5000. Kind regards, Job ---------- report below ----------- Subject: Weekly report: ASN Bogon Filter impact - 2016.06.02 Dear reader, This is an automated report to provide insight into the effects of the new Bogon ASN as-path filters NTT will deploy in July 2016. This script parses a full table RIB dump as seen from a customer perspective (kiera.meerval.net in Amsterdam) and searches which prefixes would be dropped without causing too much concern, and which prefixes will fall off the routing table. Bogon ASNs are defined as: 0, 23456, 64496-131071, 4200000000-4294967295 Problem prefixes: (140 issues) ----------------------------- 172.86.191.0/24 (path: 2914 174 32489 65535 ) 143.0.108.0/22 (path: 2914 174 18747 64339 ) 185.5.141.0/24 (path: 2914 174 5563 65300 5563 ) 104.254.94.0/24 (path: 2914 174 32489 65535 ) 185.52.40.0/22 (path: 2914 174 2116 64329 ) 185.121.40.0/22 (path: 2914 174 35369 65369 4200000001 ) 195.88.106.0/23 (path: 2914 174 2116 64329 ) 23.111.250.0/24 (path: 2914 174 15003 15003 15003 15003 15003 15003 15003 64666 ) 2a07:7ec7:3c00::/38 (path: 2914 174 20473 65534 64515 64539 ) 2a07:7ec6:2c00::/38 (path: 2914 174 20473 65534 64515 64539 ) 2a07:7ec6:7800::/38 (path: 2914 174 20473 65534 64515 64539 ) 2a07:7ec4:4000::/38 (path: 2914 174 20473 65534 64515 64539 ) 2a07:7ec4:f800::/38 (path: 2914 174 20473 65534 64515 64539 ) 108.57.142.0/23 (path: 2914 701 64512 ) 108.57.144.0/21 (path: 2914 701 64512 ) 108.57.152.0/21 (path: 2914 701 64512 ) 46.229.74.0/23 (path: 2914 1273 12389 25549 65526 ) 122.15.0.0/16 (path: 2914 1273 55410 26685 55917 65001 65002 65003 134007 134041 134304 ) 112.133.192.0/18 (path: 2914 1273 55410 24186 45851 59194 64608 ) 182.19.80.0/21 (path: 2914 1273 55410 58906 65001 ) 176.103.176.0/20 (path: 2914 1299 24589 23456 ) 176.103.192.0/21 (path: 2914 1299 24589 23456 ) 2a00:75e0::/32 (path: 2914 1299 2116 64329 ) 208.78.104.0/21 (path: 2914 2828 13703 22626 64512 ) 103.197.240.0/22 (path: 2914 3257 9498 9730 23456 ) 103.199.88.0/22 (path: 2914 3257 9498 9730 23456 ) 137.59.8.0/22 (path: 2914 3257 9498 9730 23456 ) 103.225.224.0/22 (path: 2914 3257 9498 9730 23456 ) 111.235.148.0/22 (path: 2914 3257 9498 9730 23456 ) 80.90.160.0/20 (path: 2914 3257 48832 48832 48832 48832 48832 48832 48832 48832 48832 48832 65545 ) 188.247.64.0/19 (path: 2914 3257 48832 48832 48832 48832 48832 48832 48832 48832 48832 48832 65545 ) 192.96.139.0/24 (path: 2914 3356 11845 65610 ) 186.226.16.0/20 (path: 2914 3356 3549 16594 23456 262763 ) 91.233.214.0/23 (path: 2914 3356 24589 23456 ) 194.169.32.0/20 (path: 2914 4589 8190 4200000246 ) 2001:df0:458::/48 (path: 2914 4755 18229 64701 65502 65309 ) 103.57.64.0/22 (path: 2914 4755 133987 65350 ) 162.247.245.0/24 (path: 2914 6327 55117 64512 ) 103.12.168.0/24 (path: 2914 6453 6453 4755 132329 132329 132329 132329 23456 23456 23456 ) 185.103.109.0/24 (path: 2914 6461 43350 23456 ) 31.220.112.0/21 (path: 2914 6663 31317 65528 ) 190.13.94.0/24 (path: 2914 6762 7303 262195 23456 52351 ) 200.59.127.0/24 (path: 2914 6762 7303 262195 23456 262195 262195 10617 ) 200.59.120.0/24 (path: 2914 6762 7303 262195 23456 262195 262195 10617 ) 200.59.121.0/24 (path: 2914 6762 7303 262195 23456 262195 262195 10617 ) 200.0.209.0/24 (path: 2914 6762 7303 262195 23456 7005 7005 7005 ) 200.0.210.0/24 (path: 2914 6762 7303 262195 23456 7005 7005 7005 ) 200.0.211.0/24 (path: 2914 6762 7303 262195 23456 7005 7005 7005 ) 2a07:33c0::/29 (path: 2914 6830 12676 54431 65100 ) 192.108.127.0/24 (path: 2914 7029 393543 65001 ) 70.40.139.0/24 (path: 2914 7029 19397 64712 ) 93.95.176.0/24 (path: 2914 8928 15924 65411 ) 79.170.168.0/24 (path: 2914 8928 15924 65411 ) 213.252.251.0/24 (path: 2914 9002 9002 9002 9002 9002 42979 201201 199527 65529 199527 199527 ) 2a03:7380:4000::/42 (path: 2914 9002 13188 64604 ) 2a03:7380:4040::/42 (path: 2914 9002 13188 64604 ) 91.102.64.0/21 (path: 2914 9009 9009 9009 65433 ) 185.91.236.0/23 (path: 2914 9009 9009 9009 65052 ) 93.113.208.0/22 (path: 2914 9009 6910 65002 ) 103.16.229.0/24 (path: 2914 9304 133398 64513 ) 103.195.54.0/24 (path: 2914 9498 58601 24323 65005 64058 ) 103.195.55.0/24 (path: 2914 9498 58601 24323 65005 64058 ) 2400:5200:1400::/40 (path: 2914 9498 55410 38266 65001 65010 ) 188.65.30.0/24 (path: 2914 9498 8529 8529 8529 8529 8529 8529 8529 8529 28885 65535 15679 15679 ) 188.65.31.0/24 (path: 2914 9498 8529 8529 8529 8529 8529 8529 8529 8529 28885 65535 15679 15679 ) 188.65.26.0/24 (path: 2914 9498 8529 8529 8529 8529 8529 8529 8529 8529 28885 65535 15679 15679 15679 15679 15679 15679 15679 ) 188.65.27.0/24 (path: 2914 9498 8529 8529 8529 8529 8529 8529 8529 8529 28885 65535 15679 15679 15679 15679 15679 15679 15679 ) 188.65.24.0/24 (path: 2914 9498 8529 8529 8529 8529 8529 8529 8529 8529 28885 65535 15679 15679 ) 188.65.25.0/24 (path: 2914 9498 8529 8529 8529 8529 8529 8529 8529 8529 28885 65535 15679 15679 ) 210.24.208.0/24 (path: 2914 10026 4628 9255 65010 ) 210.24.209.0/24 (path: 2914 10026 4628 9255 65010 ) 210.24.216.0/24 (path: 2914 10026 4628 9255 65010 ) 210.24.218.0/24 (path: 2914 10026 4628 9255 65010 ) 210.24.219.0/24 (path: 2914 10026 4628 9255 65010 ) 210.24.212.0/24 (path: 2914 10026 4628 9255 65010 ) 210.24.214.0/24 (path: 2914 10026 4628 9255 65010 ) 210.24.210.0/24 (path: 2914 10026 4628 9255 65010 ) 142.148.224.0/24 (path: 2914 12179 14630 64512 ) 142.148.225.0/24 (path: 2914 12179 14630 64512 ) 46.151.104.0/21 (path: 2914 12389 21453 49893 50802 65001 ) 5.143.176.0/20 (path: 2914 12389 15468 65001 ) 195.135.240.0/22 (path: 2914 12389 21453 49893 50802 65001 ) 192.150.214.0/23 (path: 2914 13768 65013 ) 208.86.242.0/24 (path: 2914 14265 46926 65001 46926 46926 46926 46926 46926 46926 ) 192.16.2.0/24 (path: 2914 15133 65405 ) 192.16.3.0/24 (path: 2914 15133 65405 ) 178.173.158.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.159.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.156.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.157.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.154.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.155.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.152.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.153.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.147.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.148.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.128.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.142.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.143.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.140.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.141.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.217.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.222.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.223.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.220.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.221.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.206.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.204.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.205.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.190.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.180.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.181.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.168.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 178.173.169.0/24 (path: 2914 15412 12880 31549 65533 1756 ) 194.69.42.0/24 (path: 2914 15830 65501 21160 21160 ) 91.208.64.0/24 (path: 2914 20485 198816 65005 47593 ) 199.7.166.0/24 (path: 2914 22626 64512 ) 199.7.167.0/24 (path: 2914 22626 64512 ) 208.83.6.0/23 (path: 2914 22626 64512 ) 2620:be:8000::/48 (path: 2914 22773 64514 ) 2602:ff61::/48 (path: 2914 22773 65005 ) 130.0.231.0/24 (path: 2914 23352 39470 18919 65156 ) 143.41.0.0/21 (path: 2914 25180 4200000368 ) 143.41.8.0/21 (path: 2914 25180 4200000501 ) 185.129.208.0/24 (path: 2914 25180 4200000382 ) 185.129.209.0/24 (path: 2914 25180 4200000382 ) 139.143.0.0/16 (path: 2914 25180 4200000318 ) 185.52.36.0/22 (path: 2914 25180 4200000090 ) 195.95.131.0/24 (path: 2914 25180 4200000365 ) 176.122.192.0/23 (path: 2914 25180 4200000402 ) 82.139.64.0/18 (path: 2914 41887 41887 65031 ) 185.117.10.0/24 (path: 2914 44217 65500 ) 185.117.8.0/24 (path: 2914 44217 65500 ) 185.117.9.0/24 (path: 2914 44217 65500 ) 185.117.11.0/24 (path: 2914 44217 65500 ) 91.234.228.0/24 (path: 2914 47872 20771 16010 65009 198874 ) 119.235.130.0/24 (path: 2914 63928 24427 64928 ) 119.235.131.0/24 (path: 2914 63928 24427 64928 ) 119.235.128.0/24 (path: 2914 63928 24427 64928 ) 119.235.129.0/24 (path: 2914 63928 24427 64928 ) resolved by virtue of existing overlapping prefix: -------------------------------------------------- 109.161.0.0/17 (path: 2914 12389 13118 13118 ) contains: 109.161.56.0/24 (path: 2914 12389 13118 13118 65001 ) 109.225.0.0/18 (path: 2914 12389 44237 15468 ) contains: 109.225.32.0/20 (path: 2914 12389 15468 65001 ) 109.225.48.0/20 (path: 2914 12389 15468 65001 ) 109.225.0.0/20 (path: 2914 12389 15468 65001 ) 109.225.16.0/20 (path: 2914 12389 15468 65001 ) 115.127.0.0/18 (path: 2914 132602 132602 132602 132602 132602 58656 24342 ) contains: 115.127.41.0/24 (path: 2914 9498 58655 9230 65534 24342 ) 116.50.64.0/18 (path: 2914 3257 9498 38529 ) contains: 116.50.78.0/23 (path: 2914 9498 38529 64520 ) 116.50.80.0/24 (path: 2914 9498 38529 64520 ) 116.50.90.0/24 (path: 2914 4755 38529 64520 ) 116.50.85.0/24 (path: 2914 9498 38529 64520 ) 123.30.64.0/20 (path: 2914 58453 45899 7643 ) contains: 123.30.74.0/24 (path: 2914 58453 45899 45899 65512 ) 123.30.75.0/24 (path: 2914 58453 45899 45899 65512 ) 124.92.0.0/14 (path: 2914 4837 4837 ) contains: 124.93.212.0/23 (path: 2914 4837 65501 ) 124.93.214.0/23 (path: 2914 4837 65501 ) 135.84.176.0/22 (path: 2914 13768 54527 ) contains: 135.84.177.0/24 (path: 2914 6327 54527 63213 65002 ) 152.176.0.0/12 (path: 2914 701 ) contains: 152.178.135.0/24 (path: 2914 701 64512 ) 154.72.52.0/23 (path: 2914 174 327797 ) contains: 154.72.52.0/24 (path: 2914 174 327797 65502 ) 157.254.228.0/22 (path: 2914 174 7332 11648 ) contains: 157.254.229.0/24 (path: 2914 4755 65805 ) 167.219.60.0/23 (path: 2914 703 30337 30337 30337 30337 30337 30337 30337 30337 30337 30337 30337 ) contains: 167.219.60.0/24 (path: 2914 4755 30337 65001 ) 173.231.64.0/19 (path: 2914 174 26801 19159 ) contains: 173.231.76.0/24 (path: 2914 174 26801 19159 19159 64573 ) 174.35.0.0/17 (path: 2914 3257 36408 ) contains: 174.35.0.0/24 (path: 2914 14265 65204 ) 178.60.192.0/18 (path: 2914 174 12334 ) contains: 178.60.197.0/24 (path: 2914 174 12334 199949 64555 ) 185.66.84.0/22 (path: 2914 9002 9049 201706 ) contains: 185.66.86.0/24 (path: 2914 9002 9049 201706 65555 ) 188.247.64.0/19 (path: 2914 3257 48832 48832 48832 48832 48832 48832 48832 48832 48832 48832 65545 ) contains: 188.247.72.0/21 (path: 2914 3257 48832 48832 48832 48832 48832 48832 48832 48832 48832 48832 65545 ) 188.65.28.0/23 (path: 2914 9498 8529 8529 8529 8529 8529 8529 8529 8529 28885 ) contains: 188.65.28.0/24 (path: 2914 9498 8529 8529 8529 8529 8529 8529 8529 8529 28885 65535 15679 15679 ) 188.65.29.0/24 (path: 2914 9498 8529 8529 8529 8529 8529 8529 8529 8529 28885 65535 15679 15679 ) 190.131.192.0/18 (path: 2914 23520 ) contains: 190.131.193.0/24 (path: 2914 23520 262191 65499 ) 190.131.198.0/24 (path: 2914 23520 262191 65475 ) 190.68.128.0/19 (path: 2914 12956 3816 ) contains: 190.68.130.0/24 (path: 2914 12956 3816 3816 3816 3816 3816 65329 3816 ) 194.204.192.0/18 (path: 2914 12956 6713 ) contains: 194.204.217.0/24 (path: 2914 174 6713 6713 6713 6713 6713 6713 6713 36956 65375 ) 194.70.0.0/16 (path: 2914 1273 2529 ) contains: 194.70.246.0/24 (path: 2914 1273 65539 ) 195.135.240.0/22 (path: 2914 12389 21453 49893 50802 65001 ) contains: 195.135.240.0/23 (path: 2914 12389 21453 49893 50802 65001 ) 195.135.242.0/23 (path: 2914 12389 21453 49893 50802 65001 ) 195.46.128.0/19 (path: 2914 8928 15924 ) contains: 195.46.147.0/24 (path: 2914 8928 15924 65121 ) 195.87.0.0/16 (path: 2914 8928 15924 8386 ) contains: 195.87.13.0/24 (path: 2914 8928 15924 8386 65412 ) 195.87.42.0/24 (path: 2914 8928 15924 64512 ) 199.204.224.0/22 (path: 2914 3356 4323 40059 ) contains: 199.204.224.0/24 (path: 2914 2828 6181 40059 65433 ) 199.45.32.0/19 (path: 2914 701 ) contains: 199.45.53.0/24 (path: 2914 701 65403 ) 199.45.54.0/24 (path: 2914 701 65403 ) 200.149.0.0/16 (path: 2914 286 7738 ) contains: 200.149.212.0/24 (path: 2914 12956 7738 65017 ) 2001:578::/30 (path: 2914 22773 ) contains: 2001:57a:eff1::/48 (path: 2914 22773 64517 ) 204.76.144.0/21 (path: 2914 2828 6128 63254 ) contains: 204.76.148.0/22 (path: 2914 174 46887 63254 64512 ) 205.177.0.0/16 (path: 2914 3491 ) contains: 205.177.67.0/24 (path: 2914 3491 65536 ) 205.177.68.0/24 (path: 2914 3491 65536 ) 206.154.0.0/19 (path: 2914 209 17402 ) contains: 206.154.0.0/20 (path: 2914 209 4200000006 ) 207.245.64.0/18 (path: 2914 3491 6372 ) contains: 207.245.119.0/24 (path: 2914 2828 6372 65006 ) 207.250.0.0/16 (path: 2914 3356 4323 ) contains: 207.250.99.0/24 (path: 2914 17054 13492 64600 ) 208.78.104.0/21 (path: 2914 2828 13703 22626 64512 ) contains: 208.78.111.0/24 (path: 2914 22626 64512 ) 208.97.0.0/19 (path: 2914 174 31877 ) contains: 208.97.12.0/22 (path: 2914 40111 40111 65003 ) 208.97.19.0/24 (path: 2914 174 31877 65004 ) 212.106.32.0/19 (path: 2914 12389 44237 15468 ) contains: 212.106.48.0/21 (path: 2914 12389 15468 65001 ) 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