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Re: Spamhaus flags any IP announced by our ASN as a criminal
by Martin Hotze 21 Mar '23

21 Mar '23

> Date: Mon, 20 Mar 2023 14:15:08 -0700 > From: Randy Bush <randy(a)psg.com> > Subject: Re: Spamhaus flags any IP announced by our ASN as a criminal network > (...) > > we reject automagically on spamhaus, mail-abuse.org, and sorbs. really > appreciate their services. > > randy > Sorbs? Really? *doh* #m

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Cisco Nexus Odd sFlow Implementation
by Mike Hammett 20 Mar '23

20 Mar '23

Cisco is sending the in and out packets in their sFlow implementation on their Nexus switches. Obviously, this double counts the information. Are there solutions that process those flows and remove one of those directions? ----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP

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Verizon/Qwest single end-user difficulty vs Xfinity
by Jeff Woolsey 19 Mar '23

19 Mar '23

Verizon 5G Internet Support is not at a high-enough pay grade to assess this problem... So I'm turning to y'all. I'm trying to save $$$ and increase speed, using Verizon 5G Home Internet to replace XFinity, even though they gave me a faster modem a few weeks ago. I run both of the modems in Bridge/Passthrough mode. A friend of mine is nice enough to offer some offsite backup space, and I use rsync over ssh to get there. He's 1500 miles away. He uses a non-standard ssh port (keeps the doorknob twisters away). This sort of thing has been working without difficulty over Xfinity (my end) for years. He also changed his connection almost a month ago now, to Qwest, I believe. I try the same thing over Verizon [1] and ssh always times out, no response. We are also NTP peers, and that doesn't work well over Verizon either. ICMP traceroutes and pings succeed. UDP traceroutes do not get any further than 207.109.3.78 (last hop before destination) . Not every traceroute offers TCP, but MacOS does, and nothing responds to any of that, even at the usual ssh port. UDP traceroutes to either port behave like an ordinary one, which it is. Since I can get there via xfinity, I can traceroute, ping, but not ssh back through Verizon. I also set up an incoming (xfinity) port from the same non-standard ssh port forwarding to regular ssh on a different system on my LAN, and when I ssh -p <port> that from Verizon (even cellphone data), I get that other system, and that works fine. The 207... router is not in that path. I can also ping the Verizon connection from Xfinity (and vice versa). Go figure. [1] This same difficulty occurs in Verizon's Looking Glass, from several different places, and other Looking Glasses (e.g. Cogent, Equinix). It also occurs on my Verizon phone data connection (not WiFi). If he were serving more stuff out of his home, this would be a bigger problem. -- Jeff Woolsey {woolsey,jlw}(a){jlw,jxh}.com first.last(a){gmail,jlw}.com Spum bad keming. Nature abhors a straight antenna, a clean lens, and empty storage. "Delete! Delete! OK!" -Dr. Bronner on disk space management "Card sorting, Joel." -me, re Solitaire

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Land Mobile Radio (LMR) for Information Technology (IT) Professionals
by Sean Donelan 19 Mar '23

19 Mar '23

IT professionals are often tasked with planning, provisioning, implementing, and managing LMR networks with the assumption that all computer networks are basically the same and have the same general requirements. However, in some cases this assumption has resulted in LMR networks being inadequately provisioned, resourced, and managed or maintained. While each system is a network, significant differences between the two must be considered to address the infrastructure, planning, and lifecycle needs of typical IT networks versus the unique requirements of LMR networks. https://www.cisa.gov/news-events/news/safecom-and-ncswic-develop-land-mobil…

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RFC6598 100.64/10: to bogon or not to bogon (team-cymru et all)
by Lukas Tribus 19 Mar '23

19 Mar '23

Hello, so 100.64/10 is used in CGNAT deployments requiring service providers (that is AS operators) to drop 100.64/10 on the border to other AS in BGP and in the dataplane, as per RFC6598 section #6 Security Considerations [1]. Within an AS though traffic from 100.64/10 can very well bypass CGNAT for AS local traffic to reduce state/logging. This appears to be quite common and it makes a lot of sense to me. At the same time folks like team-cymru are picking up this prefix for their bogon lists with the following description [2]: > A packet routed over the public Internet (not including > over VPNs or other tunnels) should never have an address > in a bogon range. It would be quite a bad idea to drop 100.64/10 on a firewall or servers, when legitimate traffic can very well hit your infrastructure with those source IPs. Thoughts? Lukas [1] https://www.rfc-editor.org/rfc/rfc6598#section-6 [2] https://www.team-cymru.com/bogon-networks

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Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 17 Mar '23

17 Mar '23

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 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 18 Mar, 2023 BGP Table (Global) as seen in Japan. Report Website: https://thyme.apnic.net Detailed Analysis: https://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 915803 Prefixes after maximum aggregation (per Origin AS): 347771 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 446837 Total ASes present in the Internet Routing Table: 74244 Prefixes per ASN: 12.34 Origin-only ASes present in the Internet Routing Table: 63706 Origin ASes announcing only one prefix: 26134 Transit ASes present in the Internet Routing Table: 10538 Transit-only ASes present in the Internet Routing Table: 451 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 55 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 1100 Number of instances of unregistered ASNs: 1115 Number of 32-bit ASNs allocated by the RIRs: 41464 Number of 32-bit ASNs visible in the Routing Table: 34345 Prefixes from 32-bit ASNs in the Routing Table: 168511 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 525 Number of addresses announced to Internet: 3063819264 Equivalent to 182 /8s, 158 /16s and 44 /24s Percentage of available address space announced: 82.8 Percentage of allocated address space announced: 82.8 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: 306446 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 241990 Total APNIC prefixes after maximum aggregation: 69156 APNIC Deaggregation factor: 3.50 Prefixes being announced from the APNIC address blocks: 236593 Unique aggregates announced from the APNIC address blocks: 97811 APNIC Region origin ASes present in the Internet Routing Table: 13365 APNIC Prefixes per ASN: 17.70 APNIC Region origin ASes announcing only one prefix: 3904 APNIC Region transit ASes present in the Internet Routing Table: 1786 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 38 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8647 Number of APNIC addresses announced to Internet: 773747584 Equivalent to 46 /8s, 30 /16s and 115 /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, 131072-151865 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: 268067 Total ARIN prefixes after maximum aggregation: 122019 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 270188 Unique aggregates announced from the ARIN address blocks: 130292 ARIN Region origin ASes present in the Internet Routing Table: 19066 ARIN Prefixes per ASN: 14.17 ARIN Region origin ASes announcing only one prefix: 6963 ARIN Region transit ASes present in the Internet Routing Table: 1963 Average ARIN Region AS path length visible: 3.7 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4758 Number of ARIN addresses announced to Internet: 1286591232 Equivalent to 76 /8s, 175 /16s and 211 /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, 393216-401308 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, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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: 257872 Total RIPE prefixes after maximum aggregation: 121512 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 254293 Unique aggregates announced from the RIPE address blocks: 157170 RIPE Region origin ASes present in the Internet Routing Table: 28269 RIPE Prefixes per ASN: 9.00 RIPE Region origin ASes announcing only one prefix: 12022 RIPE Region transit ASes present in the Internet Routing Table: 3955 Average RIPE Region AS path length visible: 4.3 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11091 Number of RIPE addresses announced to Internet: 718396288 Equivalent to 42 /8s, 209 /16s and 219 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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: 117489 Total LACNIC prefixes after maximum aggregation: 28509 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 116871 Unique aggregates announced from the LACNIC address blocks: 48990 LACNIC Region origin ASes present in the Internet Routing Table: 10976 LACNIC Prefixes per ASN: 10.65 LACNIC Region origin ASes announcing only one prefix: 2650 LACNIC Region transit ASes present in the Internet Routing Table: 2288 Average LACNIC Region AS path length visible: 4.9 Max LACNIC Region AS path length visible: 55 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8778 Number of LACNIC addresses announced to Internet: 176575232 Equivalent to 10 /8s, 134 /16s and 83 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 29285 Total AfriNIC prefixes after maximum aggregation: 5792 AfriNIC Deaggregation factor: 5.06 Prefixes being announced from the AfriNIC address blocks: 37333 Unique aggregates announced from the AfriNIC address blocks: 12155 AfriNIC Region origin ASes present in the Internet Routing Table: 1726 AfriNIC Prefixes per ASN: 21.63 AfriNIC Region origin ASes announcing only one prefix: 595 AfriNIC Region transit ASes present in the Internet Routing Table: 334 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 40 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1071 Number of AfriNIC addresses announced to Internet: 108120320 Equivalent to 6 /8s, 113 /16s and 201 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 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 9472 8884 51 CHINAMOBILE-CN China Mobile Communicati 7545 5759 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4862 4192 75 ERX-CERNET-BKB China Education and Rese 7713 3531 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 7552 3460 1331 21 VIETEL-AS-AP Viettel Group, VN 45899 3364 1874 95 VNPT-AS-VN VNPT Corp, VN 9498 2851 499 238 BBIL-AP BHARTI Airtel Ltd., IN 4766 2555 11251 591 KIXS-AS-KR Korea Telecom, KR 24560 2361 837 441 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 45090 2184 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 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 8098 10765 2858 AMAZON-02, US 11492 4530 300 621 CABLEONE, US 7155 3966 279 45 VIASAT-SP-BACKBONE, US 22773 3650 3065 299 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3506 1320 64 SHAW, CA 16625 3174 1597 2343 AKAMAI-AS, US 749 3037 50520 2304 DNIC-AS-00749, US 396982 2621 3587 354 GOOGLE-CLOUD-PLATFORM, US 7018 2558 24118 1564 ATT-INTERNET4, US 30036 2506 361 490 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 7067 1705 149 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4042 3399 164 AKAMAI-ASN1, NL 8551 3887 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2955 2292 912 ROSTELECOM-AS, RU 9009 2634 250 1382 M247, RO 34984 2268 359 610 TELLCOM-AS, TR 6849 2164 339 19 UKRTELNET, UA 58224 1848 949 545 TCI, IR 13188 1607 100 27 TRIOLAN, UA 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 11174 3340 584 Uninet S.A. de C.V., MX 10620 3474 504 880 Telmex Colombia S.A., CO 13999 2290 373 612 Mega Cable, S.A. de C.V., MX 11830 2264 369 64 Instituto Costarricense de Electricidad 28573 1371 2325 248 Claro NXT Telecomunicacoes Ltda, BR 3816 1301 763 161 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1298 339 513 Axtel, S.A.B. de C.V., MX 6147 1130 370 22 Telefonica del Peru S.A.A., PE 11664 1100 180 459 Techtel LMDS Comunicaciones Interactiva 26615 1029 2498 45 TIM SA, BR 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 24863 1564 393 19 LINKdotNET-AS, EG 24835 1542 533 30 RAYA-AS, EG 36992 1343 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1017 67 53 ORANGE-COTE-IVOIRE, CI 36935 868 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 506 54 48 WANANCHI-, KE 24757 495 73 5 EthioNet-AS, ET 37342 493 32 1 MOVITEL, MZ 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 8151 11174 3340 584 Uninet S.A. de C.V., MX 9808 9472 8884 51 CHINAMOBILE-CN China Mobile Communicati 16509 8098 10765 2858 AMAZON-02, US 12479 7067 1705 149 UNI2-AS, ES 7545 5759 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4862 4192 75 ERX-CERNET-BKB China Education and Rese 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4530 300 621 CABLEONE, US 20940 4042 3399 164 AKAMAI-ASN1, NL 7155 3966 279 45 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 9808 9472 9421 CHINAMOBILE-CN China Mobile Communications Grou 12479 7067 6918 UNI2-AS, ES 16509 8098 5240 AMAZON-02, US 7545 5759 5068 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4862 4787 ERX-CERNET-BKB China Education and Research Net 39891 4833 4774 ALJAWWALSTC-AS, SA 7155 3966 3921 VIASAT-SP-BACKBONE, US 11492 4530 3909 CABLEONE, US 20940 4042 3878 AKAMAI-ASN1, NL 8551 3887 3850 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 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 3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V., 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 396894 UNALLOCATED 8.28.201.0/24 46887 LIGHTOWER, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 18798 UNALLOCATED 8.40.106.0/24 6461 ZAYO-6461, 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 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 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 /9:13 /10:39 /11:103 /12:299 /13:579 /14:1201 /15:2042 /16:13482 /17:8275 /18:13848 /19:25223 /20:44271 /21:51582 /22:109717 /23:97592 /24:546780 /25:741 /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 6125 7067 UNI2-AS, ES 8151 5140 11174 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3438 4530 CABLEONE, US 8551 3359 3887 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3314 3506 SHAW, CA 7155 3041 3966 VIASAT-SP-BACKBONE, US 22773 2697 3650 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2164 2506 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2028 3474 Telmex Colombia S.A., CO Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1699 2:1227 3:170 4:5 5:4422 6:118 7:6 8:1553 9:1 11:172 12:1575 13:395 14:2322 15:296 16:111 17:368 18:401 20:249 21:4 22:188 23:6122 24:2505 25:6 27:2492 29:19 31:2507 32:104 34:10 35:107 36:1910 37:4623 38:4364 39:807 40:150 41:3989 42:966 43:2335 44:312 45:16456 46:4247 47:379 49:1752 50:1839 51:570 52:1587 54:389 55:867 56:8 57:90 58:1750 59:1129 60:972 61:2438 62:2641 63:1934 64:5663 65:2317 66:4932 67:3023 68:1365 69:4127 70:1268 71:665 72:2973 74:2600 75:1459 76:608 77:2427 78:1855 79:3166 80:2064 81:1741 82:1503 83:1231 84:1528 85:2998 86:748 87:1959 88:1246 89:3621 90:612 91:7672 92:2020 93:2571 94:3556 95:3959 96:1327 97:332 98:1165 99:748 100:77 101:1070 102:2645 103:31116 104:4604 105:481 106:907 107:2553 108:985 109:4388 110:2071 111:3241 112:2061 113:1558 114:1629 115:2027 116:1918 117:2542 118:2279 119:1979 120:1769 121:1119 122:2596 123:2181 124:1621 125:2485 128:1307 129:1069 130:1007 131:2001 132:799 133:422 134:1902 135:301 136:867 137:935 138:2558 139:1522 140:1202 141:1473 142:1438 143:1502 144:1165 145:356 146:1919 147:1565 148:2261 149:1959 150:872 151:1147 152:1849 153:488 154:4272 155:1419 156:1688 157:1278 158:1053 159:2268 160:2540 161:1474 162:3541 163:1505 164:1596 165:1684 166:859 167:1708 168:3889 169:933 170:4603 171:888 172:3502 173:2937 174:1023 175:1165 176:3682 177:4611 178:3635 179:2184 180:2405 181:3416 182:3353 183:1932 184:2351 185:20157 186:4681 187:3977 188:4093 189:3594 190:9134 191:1460 192:10967 193:8823 194:7254 195:5148 196:3091 197:2387 198:5963 199:6096 200:7846 201:5876 202:10760 203:10195 204:4626 205:3540 206:3904 207:3457 208:4092 209:4872 210:4452 211:2500 212:4093 213:3545 214:1094 215:58 216:6597 217:2659 218:1287 219:580 220:2014 221:974 222:878 223:2167 End of report

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Most Recent Episode of "Internet Innovators," Daigle Joins NANOG Board + More
by Nanog News 16 Mar '23

16 Mar '23

*Most Recent Episode of "Internet Innovators"**Sadowsky Discusses Making Internet Accessible to over 50 Economically Developing Countries * George Sadowsky is an Internet Hall of Famer and a recent Johnathon B. Postal award recipient. He is known for his decades-long work in economically developing countries. Why it's worth your time: Learn about the humanitarian behind the tech, surprising stories about the diverse cultures he met abroad, his thoughts on the current state of the Internet, and the future of Internet connectivity + accessibility. *WATCH NOW * <https://www.nanog.org/news-stories/nanog-tv/internet-innovators/internet-in…> *Meet Your New Board Chair * *NANOG Welcomes Leslie Daigle * Chief Technical Officer (CTO) of Global Cyber Alliance and former Chief Internet Technology Officer (CITO) of Internet Society (ISOC), Leslie Daigle Helms the NANOG Board of Directors as Chair for 2023. NANOG caught up with Daigle to ask about the present and future of the organization from her Chair and what she hopes to contribute during her term. *READ NOW * <https://www.nanog.org/stories/meet-nanogs-new-board-chair/> *What's Hot on the Mailing List?* *Join a Conversation or Find a Solution Via our Community Forum Online Discussion Boards* ****Remember you must log in or create an account to access the Community Forum.* - Is malicious asymmetrical routing still a thing? <https://nanog.us20.list-manage.com/track/click?u=4d708401d0e69d9dc73d1c204&…> <https://nanog.us20.list-manage.com/track/click?u=4d708401d0e69d9dc73d1c204&…> Replies 10 - A blatant podcast plug <https://nanog.us20.list-manage.com/track/click?u=4d708401d0e69d9dc73d1c204&…> <https://nanog.us20.list-manage.com/track/click?u=4d708401d0e69d9dc73d1c204&…> Replies 6 - Any Wave/Astound clue on the list? <https://nanog.us20.list-manage.com/track/click?u=4d708401d0e69d9dc73d1c204&…> <https://nanog.us20.list-manage.com/track/click?u=4d708401d0e69d9dc73d1c204&…> Replies 2 - 2023 State of Network Automation Survey <https://nanog.us20.list-manage.com/track/click?u=4d708401d0e69d9dc73d1c204&…> Replies 10 - VM hosting with full BGP feed <https://nanog.us20.list-manage.com/track/click?u=4d708401d0e69d9dc73d1c204&…> <https://nanog.us20.list-manage.com/track/click?u=4d708401d0e69d9dc73d1c204&…> Replies 2 *COMMUNITY FORUM * <https://community.nanog.org/latest>

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Is malicious asymmetrical routing still a thing?
by John Levine 13 Mar '23

13 Mar '23

Back in the olden days, a spammer would set up a server with a fast broadband connection and a dialup connection, and send out lots of spam over the broadband connection using the dialup's IP address. Since mail traffic is quite asymmetric, this got them most of the broadband speed, and when the dialup provider cancelled their service, they could just dial into someone else. Or maybe work through that giant pile of AOL CD-ROMs we all had. The broadband provider often wouldn't notice since it wasn't their IP and they didn't get the complaints. Is this still a thing? Broadband providers fixed this by some combination of filtering port 25 traffic both ways, and BCP38 so you can only send packets with your own address. Do providers do both of these? More of one than the other? TIA. R's, John

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Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 10 Mar '23

10 Mar '23

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 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 11 Mar, 2023 BGP Table (Global) as seen in Japan. Report Website: https://thyme.apnic.net Detailed Analysis: https://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 915007 Prefixes after maximum aggregation (per Origin AS): 347222 Deaggregation factor: 2.64 Unique aggregates announced (without unneeded subnets): 446319 Total ASes present in the Internet Routing Table: 74206 Prefixes per ASN: 12.33 Origin-only ASes present in the Internet Routing Table: 63674 Origin ASes announcing only one prefix: 26136 Transit ASes present in the Internet Routing Table: 10532 Transit-only ASes present in the Internet Routing Table: 450 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 55 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 1094 Number of instances of unregistered ASNs: 1110 Number of 32-bit ASNs allocated by the RIRs: 41406 Number of 32-bit ASNs visible in the Routing Table: 34306 Prefixes from 32-bit ASNs in the Routing Table: 168053 Number of bogon 32-bit ASNs visible in the Routing Table: 49 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 540 Number of addresses announced to Internet: 3063655424 Equivalent to 182 /8s, 155 /16s and 172 /24s Percentage of available address space announced: 82.8 Percentage of allocated address space announced: 82.8 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: 306150 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 241976 Total APNIC prefixes after maximum aggregation: 69078 APNIC Deaggregation factor: 3.50 Prefixes being announced from the APNIC address blocks: 236589 Unique aggregates announced from the APNIC address blocks: 97821 APNIC Region origin ASes present in the Internet Routing Table: 13346 APNIC Prefixes per ASN: 17.73 APNIC Region origin ASes announcing only one prefix: 3893 APNIC Region transit ASes present in the Internet Routing Table: 1790 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 26 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8624 Number of APNIC addresses announced to Internet: 773734784 Equivalent to 46 /8s, 30 /16s and 65 /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, 131072-151865 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: 267839 Total ARIN prefixes after maximum aggregation: 121700 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 269935 Unique aggregates announced from the ARIN address blocks: 130374 ARIN Region origin ASes present in the Internet Routing Table: 19066 ARIN Prefixes per ASN: 14.16 ARIN Region origin ASes announcing only one prefix: 6969 ARIN Region transit ASes present in the Internet Routing Table: 1958 Average ARIN Region AS path length visible: 3.7 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4755 Number of ARIN addresses announced to Internet: 1286731520 Equivalent to 76 /8s, 177 /16s and 247 /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, 393216-401308 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, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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: 257352 Total RIPE prefixes after maximum aggregation: 121375 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 253836 Unique aggregates announced from the RIPE address blocks: 156754 RIPE Region origin ASes present in the Internet Routing Table: 28239 RIPE Prefixes per ASN: 8.99 RIPE Region origin ASes announcing only one prefix: 12007 RIPE Region transit ASes present in the Internet Routing Table: 3949 Average RIPE Region AS path length visible: 4.3 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11073 Number of RIPE addresses announced to Internet: 718252672 Equivalent to 42 /8s, 207 /16s and 170 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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: 117404 Total LACNIC prefixes after maximum aggregation: 28499 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 116794 Unique aggregates announced from the LACNIC address blocks: 48887 LACNIC Region origin ASes present in the Internet Routing Table: 10986 LACNIC Prefixes per ASN: 10.63 LACNIC Region origin ASes announcing only one prefix: 2672 LACNIC Region transit ASes present in the Internet Routing Table: 2278 Average LACNIC Region AS path length visible: 4.9 Max LACNIC Region AS path length visible: 55 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8784 Number of LACNIC addresses announced to Internet: 176436224 Equivalent to 10 /8s, 132 /16s and 52 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 29342 Total AfriNIC prefixes after maximum aggregation: 5781 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 37313 Unique aggregates announced from the AfriNIC address blocks: 12056 AfriNIC Region origin ASes present in the Internet Routing Table: 1724 AfriNIC Prefixes per ASN: 21.64 AfriNIC Region origin ASes announcing only one prefix: 595 AfriNIC Region transit ASes present in the Internet Routing Table: 337 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 30 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1070 Number of AfriNIC addresses announced to Internet: 108099840 Equivalent to 6 /8s, 113 /16s and 121 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 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 9462 8884 51 CHINAMOBILE-CN China Mobile Communicati 7545 5770 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4862 4192 75 ERX-CERNET-BKB China Education and Rese 7552 3675 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3533 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3368 1874 95 VNPT-AS-VN VNPT Corp, VN 9498 2818 499 238 BBIL-AP BHARTI Airtel Ltd., IN 4766 2551 11251 591 KIXS-AS-KR Korea Telecom, KR 24560 2359 834 441 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 45090 2184 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 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 8051 10754 2882 AMAZON-02, US 11492 4529 300 616 CABLEONE, US 7155 3959 270 44 VIASAT-SP-BACKBONE, US 22773 3650 3064 297 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3505 1320 64 SHAW, CA 16625 3190 1601 2359 AKAMAI-AS, US 749 3037 50520 2304 DNIC-AS-00749, US 396982 2622 3586 356 GOOGLE-CLOUD-PLATFORM, US 7018 2559 24119 1565 ATT-INTERNET4, US 30036 2521 362 445 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 7064 1705 149 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4039 3399 171 AKAMAI-ASN1, NL 8551 3895 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2950 2292 911 ROSTELECOM-AS, RU 9009 2638 250 1382 M247, RO 34984 2266 359 609 TELLCOM-AS, TR 6849 2163 339 19 UKRTELNET, UA 58224 1847 949 546 TCI, IR 13188 1607 100 27 TRIOLAN, UA 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 11136 3329 593 Uninet S.A. de C.V., MX 10620 3466 504 879 Telmex Colombia S.A., CO 13999 2281 372 608 Mega Cable, S.A. de C.V., MX 11830 2264 369 64 Instituto Costarricense de Electricidad 28573 1365 2325 254 Claro NXT Telecomunicacoes Ltda, BR 3816 1301 763 161 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1298 339 513 Axtel, S.A.B. de C.V., MX 6147 1130 370 22 Telefonica del Peru S.A.A., PE 11664 1097 180 461 Techtel LMDS Comunicaciones Interactiva 26615 1029 2498 45 TIM SA, BR 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 24863 1556 393 19 LINKdotNET-AS, EG 24835 1542 533 30 RAYA-AS, EG 36992 1343 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1013 67 53 ORANGE-COTE-IVOIRE, CI 36935 868 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 528 54 47 WANANCHI-, KE 24757 496 73 5 EthioNet-AS, ET 37342 493 32 1 MOVITEL, MZ 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 8151 11136 3329 593 Uninet S.A. de C.V., MX 9808 9462 8884 51 CHINAMOBILE-CN China Mobile Communicati 16509 8051 10754 2882 AMAZON-02, US 12479 7064 1705 149 UNI2-AS, ES 7545 5770 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4862 4192 75 ERX-CERNET-BKB China Education and Rese 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4529 300 616 CABLEONE, US 20940 4039 3399 171 AKAMAI-ASN1, NL 7155 3959 270 44 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 9808 9462 9411 CHINAMOBILE-CN China Mobile Communications Grou 12479 7064 6915 UNI2-AS, ES 16509 8051 5169 AMAZON-02, US 7545 5770 5079 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4862 4787 ERX-CERNET-BKB China Education and Research Net 39891 4561 4503 ALJAWWALSTC-AS, SA 7155 3959 3915 VIASAT-SP-BACKBONE, US 11492 4529 3913 CABLEONE, US 20940 4039 3868 AKAMAI-ASN1, NL 8551 3895 3858 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 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 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 396894 UNALLOCATED 8.28.201.0/24 46887 LIGHTOWER, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 18798 UNALLOCATED 8.40.106.0/24 6461 ZAYO-6461, US 394856 UNALLOCATED 8.40.216.0/24 3356 LEVEL3, 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 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 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 /9:13 /10:39 /11:103 /12:299 /13:579 /14:1201 /15:2041 /16:13485 /17:8277 /18:13832 /19:25209 /20:44307 /21:51700 /22:109721 /23:97586 /24:545777 /25:822 /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 6122 7064 UNI2-AS, ES 8151 5125 11136 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3437 4529 CABLEONE, US 8551 3367 3895 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3313 3505 SHAW, CA 7155 3036 3959 VIASAT-SP-BACKBONE, US 22773 2697 3650 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2178 2521 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2020 3466 Telmex Colombia S.A., CO Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1700 2:1231 3:168 4:5 5:4343 6:118 7:6 8:1554 9:1 11:172 12:1579 13:391 14:2327 15:293 16:111 17:369 18:398 20:249 21:4 22:188 23:6131 24:2494 25:4 27:2502 29:19 31:2505 32:110 34:8 35:106 36:1913 37:4621 38:4349 39:806 40:151 41:4016 42:949 43:2335 44:308 45:16413 46:4187 47:382 49:1749 50:1834 51:378 52:1588 54:389 55:869 56:8 57:89 58:1741 59:1126 60:974 61:2435 62:2641 63:1937 64:5652 65:2324 66:4934 67:3002 68:1354 69:4133 70:1269 71:665 72:2974 74:2598 75:1459 76:605 77:2423 78:1853 79:3168 80:2058 81:1738 82:1509 83:1234 84:1528 85:3009 86:756 87:1954 88:1243 89:3595 90:611 91:7650 92:2014 93:2575 94:3542 95:3956 96:1326 97:331 98:1161 99:747 100:77 101:1062 102:2644 103:31031 104:4591 105:483 106:911 107:2546 108:937 109:4395 110:2071 111:3289 112:2046 113:1558 114:1625 115:2042 116:1929 117:2563 118:2274 119:1970 120:1772 121:1115 122:2598 123:2184 124:1617 125:2455 128:1316 129:1074 130:1001 131:2006 132:793 133:421 134:1906 135:299 136:867 137:933 138:2541 139:1555 140:1195 141:1471 142:1432 143:1475 144:1209 145:356 146:1911 147:1565 148:2309 149:1929 150:876 151:1142 152:1848 153:486 154:4248 155:1424 156:1679 157:1285 158:1052 159:2267 160:2550 161:1446 162:3539 163:1500 164:1594 165:1681 166:860 167:1721 168:3825 169:931 170:4582 171:900 172:3505 173:2950 174:1017 175:1162 176:3737 177:4583 178:3626 179:2185 180:2363 181:3413 182:3350 183:1935 184:2334 185:20121 186:4692 187:3936 188:4134 189:3581 190:9137 191:1481 192:10959 193:8830 194:7243 195:5134 196:3076 197:2389 198:5967 199:6098 200:7766 201:5854 202:10734 203:10191 204:4604 205:3535 206:3844 207:3453 208:4083 209:4873 210:4454 211:2499 212:4100 213:3548 214:1094 215:58 216:6602 217:2659 218:1288 219:580 220:2015 221:972 222:876 223:2148 End of report

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ITNOG7 may 19th
by Brian Turnbow 10 Mar '23

10 Mar '23

Hello everyone, Itnog7 is taking place in Bologna May 9th and 10th and we have published our CFP. Topics Past event feedback has shown interest from the attendees in sessions that are practical and applicable to their networks. This year we will be giving preference to presentations and tutorials that benefit the Italian operators community on the following topics * Ever changing network technologies drive the question of how to define a "network engineer". What is the evolution? * Share your experiences, choices, best practices, and business decisions on ipv6 deployment and ipv4 exhaustion * SDN, Telemetry and Artificial intelligence are redefining Network monitoring and orchestration, what are you doing? * Strategic Italian infrastructure from new undersea cables, new datacenters to ixps, Investments are being made tell us about them and who decides what is "strategic"? * Access and backbone networks: design , technologies and operations * Peering and Interconnections: tools, strategies and useful information for building and maintaining a resilient Italian Internet Have another topic? If it is technical and can be of interest to the community send it in. Submissions will only be accepted if they match the requirements defined herein. The topic of the presentation should be technical, with strong focus on the development, engineering and operation of internet networks. The ITNOG community is quite sensitive to keeping presentations non-commercial, and product marketing talks will not be accepted. For example, presenters wishing to describe a commercial solution should focus on the underlying technology and not attempt a product demonstration. Repeated audience feedback shows that the most successful talks are lightning talks that focus on operational experience, research results, or case studies. To submit a presentation to the Program Committee make sure to include: * An abstract of your presentation ( in English or Italian ) * The requested time frame * A draft or the final version of the slide deck to be presented. * Presentations may be in English or Italian, and will be divided between lightning talks (max7 minutes) and tutorials or presentation between 10 and 30 minutes in length. A 5 minute Q&A session will follow each presentation. Submissions should be sent to itnog-pc(a)lists.itnog.it no later than 15th of April 2023. Event information is available here https://www.itnog.it/itnog7/ Even if you do not want to present, you are welcome to come and experience an Italian style Nog. Bologna you know is the home of lasagna. Brian

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