- NANOG - lists.nanog.org

Use of NPTv6 in a mobile service provider network
by Amos Rosenboim 04 Feb '25

04 Feb '25

Hi, We are implementing an CGNAT + IPv6 firewall project for a mobile service provider. One of the project goals is to support scale out all active deployment of the stateful devices. One of the challenges of inserting these stateful devices into the network is the requirement that all packets of the same flow will be routed through the same device, while maintaining multi homing of the stateful device. There are few ways to achieve this in the network, but there is also an option to work around this requirement by using NPTv6 on each device or even NAPT66 on each device. I’m trying to understand if this option is deployed anywhere. I’m trying to get feedback on possible technical issues with this approach. Please no “NAT is bad and should be avoided with IPv6” argument, but if you have solid technical objections I’m very interested. Cheers, Amos If you have received this e-mail in error, please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the content of this information is strictly prohibited.

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NANOG Discord
by Ryan Hamel 03 Feb '25

03 Feb '25

NANOG Community, I am excited to announce the official NANOG Discord! Everyone can join by visiting https://discord.nanog.org<https://discord.nanog.org/>. In the Discord, you will find groups of channels related to the conferences, NANOG committees, technology (#bgp, #hardware, #ix, and more), and official + unofficial affinity groups. There is also a voice channel to communicate in real-time via audio, video, and screenshare. When you join, please read the #welcome and #rules channels, and tell us a little bit about yourself in the #general channel. Discord roles can be requested in the #role-request channel by providing your name, and letting us know if you are either a NANOG member, a committee member, board member, or staff. While it is not a requirement, we highly recommend you set your Discord Server Nickname to your First and Last Name, and (optional) include your AS number and/or business name (example “Ryan Hamel - Zayo (AS6461)”) to help members of the community find you. The Discord is managed and moderated by the newly formed Moderation Committee (https://nanog.org/about/who-we-are/committees/moderation-committee/) using similar guidelines to the mailing list which also includes the Code of Conduct (https://nanog.org/about/code-conduct/) If you have any feedback or questions about the NANOG Discord, please let us know! Kind regards, Ryan Hamel

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Re: network simulator for service provider
by Tim Raphael 01 Feb '25

01 Feb '25

There’s also a recently added vscode plugin that needs testers and suggestions! Tim On Sun, Feb 2, 2025, at 05:57, André Dias wrote: > Wait, GUI for containerlabs? Holy, I suggested it without even knowing that it exists! > > ContainerLabs rulez > >> On 1 Feb 2025, at 12:27, Thomas Scott <tscott(a)coreweave.com> wrote: >> >> +1 for containerlab. The ability to commit everything for the topology (including images) to a git repo is incredibly useful for sharing, study and analysis. >> >> There's also a gui floating around for it and klabernetes for labs that need more resources than a single server. >> >> Tim's too modest to toot his own horn, but he also did an awesome presentation on using clab + netbox for network testing a few years ago. Highly recommended if you want to see what's possible with it. >> >> On Sat, Feb 1, 2025 at 7:57 AM Tim Raphael <raphael.timothy(a)gmail.com> wrote: >>> __ >>> Containerlab is also one of the newest and fastest evolving options as well (https: //containerlab. dev/) - Tim On Wed, Apr 3, 2024, at 13: 13, aun Joe wrote: is there anysi network simulator for carrier networks ? well, from 2023 to 2024 there >>> >>> Containerlab is also one of the newest and fastest evolving options as well (https://containerlab.dev/ <https://urldefense.com/v3/__https://containerlab.dev/__;!!I6uDfDBXfA!0elFF7…>) >>> >>> >>> - Tim >>> >>> On Wed, Apr 3, 2024, at 13:13, aun Joe wrote: >>>> is there anysi network simulator for carrier networks ? >>>> >>>> well, from 2023 to 2024 there happes so many carrier network outage caused by network operation. >>>> >>>> to my limited knowledge , SP guru from riverbed could simulate carrier network. but I just checked >>>> riverbed website, SP guru stop updating in 2014. >>>> >>>> joe >>>> >>>> >>>

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DNSSEC & WIldcards
by Dennis Burgess 01 Feb '25

01 Feb '25

So have *.app.linktechs.net that I have been trying to get to work, we have DNSSEC on this, and its failing, but cannot for the life of me understand why. I think it may have something to do with proving it exists as a wildcard, but any DNSSEC experts want to take a stab at it ? Dennis Burgess

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Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 31 Jan '25

31 Jan '25

This is an automated weekly mailing describing the state of the Global IPv4 Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG UKNOF, TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG. Daily listings are sent to bgp-stats(a)lists.apnic.net. For historical data, please see https://thyme.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. IPv4 Routing Table Report 04:00 +10GMT Sat 01 Feb, 2025 IPv4 BGP Table (Global) as seen at Japan. Report Website: https://thyme.apnic.net Detailed Analysis: https://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 975207 Prefixes after maximum aggregation (per Origin AS): 372656 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 473776 Number of IPv4 prefixes with a valid ROA: 522047 Number of IPv4 prefixes with an invalid ROA: 1285 Number of IPv4 prefixes with no ROA: 451875 Total ASes present in the Internet Routing Table: 76573 Prefixes per ASN: 12.74 Origin-only ASes present in the Internet Routing Table: 65549 Origin ASes announcing only one prefix: 26841 Transit ASes present in the Internet Routing Table: 11024 Transit-only ASes present in the Internet Routing Table: 530 Average AS path length visible in the Internet Routing Table: 5.2 Max AS path length visible: 65 Max AS path prepend of ASN ( 37447) 57 Prefixes from unregistered ASNs in the Routing Table: 1072 Number of instances of unregistered ASNs: 1090 Number of 32-bit ASNs allocated by the RIRs: 46094 Number of 32-bit ASNs visible in the Routing Table: 37728 Prefixes from 32-bit ASNs in the Routing Table: 198812 Number of bogon 32-bit ASNs visible in the Routing Table: 53 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 505 Number of addresses announced to Internet: 3113800064 Equivalent to 185 /8s, 152 /16s and 209 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 319332 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 256562 Total APNIC prefixes after maximum aggregation: 76916 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 248144 Unique aggregates announced from the APNIC address blocks: 102629 APNIC Region origin ASes present in the Internet Routing Table: 14488 APNIC Prefixes per ASN: 17.13 APNIC Region origin ASes announcing only one prefix: 4419 APNIC Region transit ASes present in the Internet Routing Table: 1944 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 9967 Number of APNIC addresses announced to Internet: 753942528 Equivalent to 44 /8s, 240 /16s and 64 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-153913 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 287531 Total ARIN prefixes after maximum aggregation: 127460 ARIN Deaggregation factor: 2.26 Prefixes being announced from the ARIN address blocks: 289274 Unique aggregates announced from the ARIN address blocks: 135040 ARIN Region origin ASes present in the Internet Routing Table: 19216 ARIN Prefixes per ASN: 15.05 ARIN Region origin ASes announcing only one prefix: 7013 ARIN Region transit ASes present in the Internet Routing Table: 2004 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 39 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5133 Number of ARIN addresses announced to Internet: 1344975616 Equivalent to 80 /8s, 42 /16s and 179 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-402332 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 271458 Total RIPE prefixes after maximum aggregation: 131838 RIPE Deaggregation factor: 2.06 Prefixes being announced from the RIPE address blocks: 268496 Unique aggregates announced from the RIPE address blocks: 171529 RIPE Region origin ASes present in the Internet Routing Table: 28850 RIPE Prefixes per ASN: 9.31 RIPE Region origin ASes announcing only one prefix: 12059 RIPE Region transit ASes present in the Internet Routing Table: 3992 Average RIPE Region AS path length visible: 5.3 Max RIPE Region AS path length visible: 43 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12232 Number of RIPE addresses announced to Internet: 732340096 Equivalent to 43 /8s, 166 /16s and 159 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 123921 Total LACNIC prefixes after maximum aggregation: 29092 LACNIC Deaggregation factor: 4.26 Prefixes being announced from the LACNIC address blocks: 121260 Unique aggregates announced from the LACNIC address blocks: 48836 LACNIC Region origin ASes present in the Internet Routing Table: 11196 LACNIC Prefixes per ASN: 10.83 LACNIC Region origin ASes announcing only one prefix: 2661 LACNIC Region transit ASes present in the Internet Routing Table: 2512 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 56 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9128 Number of LACNIC addresses announced to Internet: 177903616 Equivalent to 10 /8s, 154 /16s and 152 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 34663 Total AfriNIC prefixes after maximum aggregation: 6685 AfriNIC Deaggregation factor: 5.19 Prefixes being announced from the AfriNIC address blocks: 47528 Unique aggregates announced from the AfriNIC address blocks: 15322 AfriNIC Region origin ASes present in the Internet Routing Table: 1912 AfriNIC Prefixes per ASN: 24.86 AfriNIC Region origin ASes announcing only one prefix: 689 AfriNIC Region transit ASes present in the Internet Routing Table: 378 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 65 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1268 Number of AfriNIC addresses announced to Internet: 104378624 Equivalent to 6 /8s, 56 /16s and 177 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 10342 8754 93 CHINAMOBILE-CN China Mobile Communication 7545 6206 843 661 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4809 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4183 528 274 BBIL-AP BHARTI Airtel Ltd., IN 7552 3912 1331 25 VIETEL-AS-AP Viettel Group, VN 7713 3672 1036 72 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3266 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2836 852 538 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4766 2294 11519 596 KIXS-AS-KR Korea Telecom, KR 4755 2219 434 193 TATACOMM-AS TATA Communications formerly Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 12684 38941 3720 AMAZON-02, US 11492 4697 312 552 CABLEONE, US 7155 4177 287 86 VIASAT-SP-BACKBONE, US 174 4108 8758 876 COGENT-174, US 6327 3615 1320 81 SHAW, CA 22773 3385 3033 186 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 16625 2926 1258 2160 AKAMAI-AS, US 396982 2906 3657 446 GOOGLE-CLOUD-PLATFORM, US 30036 2573 358 283 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7759 1711 144 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3923 3395 129 AKAMAI-ASN1, NL 9009 3694 318 1911 M247, RO 12389 2991 2302 890 ROSTELECOM-AS, RU 34984 2370 361 581 TELLCOM-AS, TR 212238 1905 136 1405 CDNEXT, GB 8452 1616 1852 14 TE-AS TE-AS, EG 13188 1607 100 26 TRIOLAN, UA 62240 1495 99 748 CLOUVIDER Clouvider - Global ASN, GB Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11674 3224 602 UNINET, MX 10620 3540 492 954 Telmex Colombia S.A., CO 13999 2513 539 366 Mega Cable, S.A. de C.V., MX 11830 1992 369 64 Instituto Costarricense de Electricidad y 28573 1336 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1328 777 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1155 278 33 Techtel LMDS Comunicaciones Interactivas 6503 1137 374 163 Axtel, S.A.B. de C.V., MX 6147 1104 371 22 Telefonica del Peru S.A.A., PE 22884 1076 98 370 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1681 601 30 RAYA-AS, EG 24863 1650 389 16 LINKdotNET-AS, EG 29571 1547 98 102 ORANGE-COTE-IVOIRE, CI 36992 1425 1518 286 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1002 521 42 Vodafone-, EG 20011 978 180 282 INTERNET-SOLUTIONS, ZA 37069 867 1083 15 MOBINIL, EG 6713 557 1861 35 IAM-AS, MA 36914 550 82 3 KENET-AS, KE Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 12684 38941 3720 AMAZON-02, US 8151 11674 3224 602 UNINET, MX 9808 10342 8754 93 CHINAMOBILE-CN China Mobile Communication 12479 7759 1711 144 UNI2-AS, ES 7545 6206 843 661 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4809 4192 76 ERX-CERNET-BKB China Education and Resear 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4697 312 552 CABLEONE, US 9498 4183 528 274 BBIL-AP BHARTI Airtel Ltd., IN 7155 4177 287 86 VIASAT-SP-BACKBONE, US Complete listing at https://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 11674 11072 UNINET, MX 9808 10342 10249 CHINAMOBILE-CN China Mobile Communications Grou 12479 7759 7615 UNI2-AS, ES 7545 6206 5545 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 4538 4809 4733 ERX-CERNET-BKB China Education and Research Net 11492 4697 4145 CABLEONE, US 7155 4177 4091 VIASAT-SP-BACKBONE, US 9498 4183 3909 BBIL-AP BHARTI Airtel Ltd., IN 7552 3912 3887 VIETEL-AS-AP Viettel Group, VN Complete listing at https://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 400866 UNALLOCATED 2.59.148.0/23 21859 ZEN-ECN, US 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D 40493 UNALLOCATED 8.17.26.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 46887 CROWNCASTLE-AS46887, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US Complete listing at https://thyme.apnic.net/current/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://thyme.apnic.net/current/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 6939 HURRICANE, US 23.132.192.0/24 Origin: 30500 WOLFPAWSERVICES, CA 23.132.192.0/24 Transit: 6939 HURRICANE, US 23.140.16.0/24 Origin: 63371 RESERVED, ZZ 23.140.16.0/24 Transit: 10796 TWC-10796-MIDWEST, US 23.140.48.0/24 Origin: 63371 RESERVED, ZZ 23.140.48.0/24 Transit: 7018 ATT-INTERNET4, US 23.140.176.0/24 Origin: 40676 AS40676, US 23.140.176.0/24 Transit: 7922 COMCAST-7922, US Complete listing at https://thyme.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:16 /10:42 /11:92 /12:308 /13:586 /14:1216 /15:2148 /16:13940 /17:8322 /18:13791 /19:24798 /20:44710 /21:52523 /22:112563 /23:101098 /24:598341 /25:697 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6719 7759 UNI2-AS, ES 8151 5887 11674 UNINET, MX 11492 3555 4697 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3410 3615 SHAW, CA 7155 3125 4177 VIASAT-SP-BACKBONE, US 22773 2520 3385 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2269 12684 AMAZON-02, US 30036 2234 2573 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2180 3540 Telmex Colombia S.A., CO Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1664 2:1533 3:568 4:9 5:4497 6:165 7:6 8:1550 9:1 11:172 12:1383 13:352 14:2538 15:343 16:270 17:362 18:915 20:450 21:4 22:188 23:7258 24:2735 25:2 27:2665 29:19 31:3115 32:41 34:71 35:183 36:2419 37:4613 38:9122 39:895 40:151 41:4195 42:969 43:2511 44:345 45:18207 46:4959 47:295 49:1994 50:1868 51:590 52:1568 54:307 55:1142 56:9 57:235 58:2156 59:1247 60:1162 61:2796 62:2937 63:1830 64:5495 65:2203 66:4637 67:3028 68:1182 69:4020 70:1103 71:607 72:2863 74:2781 75:1639 76:632 77:2612 78:1854 79:1575 80:2231 81:2047 82:2129 83:1410 84:1804 85:3289 86:1004 87:2437 88:1277 89:4354 90:755 91:8332 92:2775 93:2875 94:3928 95:4170 96:1293 97:308 98:990 99:735 100:71 101:1141 102:3659 103:32287 104:4653 105:751 106:1015 107:2603 108:1175 109:4084 110:2222 111:3409 112:2047 113:1524 114:1943 115:2132 116:2030 117:2745 118:2432 119:1924 120:1890 121:1409 122:2758 123:2161 124:1607 125:2891 126:94 128:1574 129:964 130:1269 131:1875 132:810 133:451 134:1519 135:322 136:1331 137:1150 138:2905 139:1579 140:1542 141:1477 142:1830 143:1605 144:1036 145:459 146:2144 147:2054 148:2586 149:2847 150:1197 151:1642 152:2065 153:504 154:7911 155:1611 156:3494 157:1872 158:1254 159:2435 160:3508 161:1811 162:3647 163:1787 164:1700 165:2177 166:1325 167:1875 168:4093 169:797 170:5065 171:999 172:4301 173:3198 174:918 175:1261 176:3601 177:4827 178:3786 179:2198 180:2547 181:3958 182:3368 183:1825 184:2262 185:21445 186:5094 187:4320 188:4235 189:4143 190:9556 191:1540 192:11249 193:9383 194:7719 195:5474 196:3213 197:3608 198:6179 199:8297 200:8154 201:6293 202:10563 203:10516 204:4556 205:3667 206:4669 207:3605 208:4193 209:5151 210:4791 211:2620 212:4519 213:3747 214:1050 215:42 216:6612 217:3104 218:1388 219:538 220:2111 221:1053 222:848 223:2336 End of report

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Issues connecting to Cloudflare over IPv4 in Nashville
by Landy Bible 31 Jan '25

31 Jan '25

A client reported issues connecting to various websites this evening and I've narrowed it down to cloudflare hosted sites specifically on ipv4. My traceroutes go through my upstream all the way to Comcast in Nashville where they die. IPv6 cloudflare addresses work just fine, but several v4 addresses I tested fail. Is anybody else seeing similar issues, or anybody from cloudflare here able to help me troubleshoot? Thanks! Landy

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Akamai contact | access denied to ups.com
by Vinny Abello 31 Jan '25

31 Jan '25

Hello folks, Are there any kind Akamai contacts that could contact me off list relating to random access denied issues reaching ups.com from my network? Naturally, I have no idea how to reach someone at UPS that is in charge of their web site, but I'll happily take a contact from there instead. We recently started announcing our own address space from our own ASN. I don't know if this problem coincides with that, but it's quite possible. It's intermittent, however. Here's a reference ID from one of the access denied messages. Reference #18.66a6d017.1738338236.f99e2bd TIA -Vinny

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3 Days Until N93! ***Agenda Has Been Updated — Changes to Workshops + Schedule!
by Nanog News 30 Jan '25

30 Jan '25

*** The Future is Here! 3 Days Until NANOG 93!* ------------------------------------------------------------ ****Please Note: Recent Changes Have Been Made to Agenda* Please check out the *latest version of the N93 agenda as recent changes have been made, *including Keynote Speaker times/dates + workshops. ***Workshops on Tuesday + Wednesday are for in-person attendees only and require an additional sign-up—seating is limited. *Save your seat directly from the agenda.* (https://nanog.org/events/nanog-93/agenda/) *Can't make it in person? *Virtual registration is available for just $100. Ask speakers questions and participate in real-time chat sessions! *VIEW MORE * <https://nanog.org/events/nanog-93/>( https://nanog.org/events/nanog-93/) *** NANOG's New IPv6 Clinic to Ft. Netflix Guest Speaker* ------------------------------------------------------------ *Free Clinic Open to All! Spots Still Available—Don't Miss Out on This Amazing Opportunity!* This free clinic is available to all and will feature guest speaker Donavan Fritz, a staff network platform engineer at Netflix. Discover how Netflix leverages IPv6 to achieve substantial cost savings and streamline its network operations. Walk away with actionable insights and strategies to advance your IPv6 adoption journey. Don't miss this opportunity—sign-ups are still open! *REGISTER NOW * <https://nanog.org/events/n93-ipv6clinic-waitlist/>( https://nanog.org/events/n93-ipv6clinic-waitlist/) *** Women in Tech Mixer Before N93 – Connect, Inspire, Lead!* ------------------------------------------------------------ *Join Us on Sunday, 02 Feb., to Kick Off NANOG 93!* Network with trailblazing women in technology, share experiences, and gain insights to elevate your career. *SEE MORE <https://nanog.org/events/nanog-93/socials/>*( https://nanog.org/events/nanog-93/socials/) *** Committee Nominations Deadline is Approaching!* ------------------------------------------------------------ *The Nomination Form Will Close at 9pm EST on Tuesday, 04 Feb.* We ask volunteers to serve on the following committees: Program, Audit, Community Engagement, Election, Hackathon, Moderation, Mentorship, and Workshop. *SEE MORE <https://nanog.org/members/elections/committee-nominations/2025-committee-no…> *( https://nanog.org/members/elections/committee-nominations/2025-committee-no… ) *** Stay Connected* ------------------------------------------------------------ http://www.facebook.com http://www.instagram.com/nanog_org/ http://www.linkedin.com/company/nanog/ https://www.twitter.com/nanog/ http://nanog.org

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Big bump in SE USA?
by Alex Buie 30 Jan '25

30 Jan '25

Hi NANOG, We saw a pretty big bump today in our SE USA footprint (POP is in Lithia Springs/Atlanta Metro) - for about 40 minutes significantly reduced traffic flows from all three of our primary upstreams. You can see it in the "valley" in the below Cacti graphs. We saw broad swaths of the southeastern US (greater Alabama/Georgia/Florida region) affected with an increase in errors and fail-open of a portion of our SD-WAN footprint And here's an example from the SD-WAN telemetry of an affected customer site - and this is un-tunneled trying to reach AWS and our datacenter infrastructure. Curious if any other operators in the region saw or felt this netquake? Alex

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ARIN RPKI Trust Anchor Issue
by Christopher Hawker 30 Jan '25

30 Jan '25

Hello folks, Has anyone received any similar event notifications (from PacketVis or other)? Trying to work out if it's a false-positive. Regards, Christopher Hawker ________________________________ From: PacketVis <notifications(a)packetvis.com> Sent: Thursday, January 30, 2025 9:40 PM To: Christopher Hawker <chris(a)thesysadmin.au> Subject: bgp ta-malfunction - low severity - PacketVis Possible TA malfunction: 29.17% of the ROAs disappeared from ARIN. Type: ta-malfunction Severity: low Monitored: ASarin When: 2025-01-30 10:40 UTC See more details about the event: https://packetvis.com/bgp/event/554c1692012ae202467afe3a38ae5075-dca21ae6-f…

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