January 2019 - Test - lists.nanog.org

Since today is a day ending in "Y" it's route hijack day? (Excelcom - as24203 please call)
by Christopher Morrow 28 Jan '19

28 Jan '19

Howdy! ExcelCom, you are being difficult to reach today AND you are originating prefixes which are not yours to originate: * 176.119.0.0/24 me 24203 I * 176.119.1.0/24 me 24203 I * 176.119.2.0/24 me 24203 I * 176.119.3.0/24 me 24203 I * 176.119.4.0/24 me 24203 I * 176.119.5.0/24 me 24203 I * 176.119.6.0/24 me 24203 I * 176.119.7.0/24 me 24203 I * 176.119.8.0/22 me 24203 I * 176.119.12.0/22 me 24203 I These prefixes are part of: inetnum: 176.119.0.0 - 176.119.15.255 netname: VSERVER-NET country: UA org: ORG-FGLP1-RIPE admin-c: LPG-RIPE tech-c: LPG-RIPE tech-c: VSRV-RIPE status: ASSIGNED PI mnt-by: RIPE-NCC-END-MNT mnt-by: VSERVER-MNT mnt-routes: VSERVER-MNT mnt-domains: VSERVER-MNT created: 2012-06-06T09:08:16Z last-modified: 2017-06-06T13:41:24Z source: RIPE # Filtered sponsoring-org: ORG-ML410-RIPE Looking at IRR data for AS24203: $ ./bgpq3 AS24203 | grep 176 $ ./bgpq3 AS24203 | grep 140 ip prefix-list NN permit 140.213.0.0/16 but the proper owner does have this content in their IRR data: $ ./bgpq3 AS58271 | grep 176 ip prefix-list NN permit 176.119.0.0/20 ip prefix-list NN permit 176.119.0.0/21 ip prefix-list NN permit 176.119.0.0/22 ip prefix-list NN permit 176.119.0.0/24 ip prefix-list NN permit 176.119.1.0/24 ip prefix-list NN permit 176.119.2.0/24 ip prefix-list NN permit 176.119.3.0/24 ip prefix-list NN permit 176.119.4.0/24 ip prefix-list NN permit 176.119.5.0/24 ip prefix-list NN permit 176.119.6.0/24 ip prefix-list NN permit 176.119.7.0/24 ip prefix-list NN permit 176.119.8.0/22 ip prefix-list NN permit 176.119.12.0/22 Could you please stop breaking someone's internet? :) -chris

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Comcast email contact
by Josh Smith 27 Jan '19

27 Jan '19

Can someone from comcast email please contact me off-list. You all appear to be black holing email received from $DAYJOBS domain. Your support from indicates we are not blocked. Our logs indicate the mail is accepted for delivery but they never make it to users inboxes, or junk/spam folders. Thanks, Josh Smith

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Process for deploying new BGP attributes (experimentally or otherwise)
by Amir Herzberg 27 Jan '19

27 Jan '19

Following our recent attempts to experiment with potential use of BGP attributes, I would like to understand better the desired process for using new BGP attributes. As mentioned earlier, we investigate currently one usage of BGP attributes for improving BGP security - specifically, adoption of RPKI. I also have some future ideas on other ways BGP attributes may be useful to improve BGP security; and surely other applications, security or otherwise, may exist. So I think we need an acceptable process to do it. Indeed, while we aborted that experiment, I doubt that the right conclusion is that one should simply never use a new BGP attribute... And I even hope that the community would want us to complete our research, to see if the particular approach we evaluate may indeed be beneficial. I think that these sentiments were also expressed by many members of this community. So: - Is there some document discussing the desired (best practice) process? [if not, maybe such document should be written?] - We used unassigned attribute. Should one always assign an attribute before using it? That's a possibility, but has some `costs' - and may yet fail to prevent problems to some non-conforming networks. - Is there an agreed-upon list of the forums and mailing lists on which one should warn in advance about such planned announcements, and the details that should be included? Thanks, Amir -- Amir Herzberg Comcast professor for security innovation Dept. of Computer Science and Engineering, University of Connecticut Homepage: https://sites.google.com/site/amirherzberg/home Publications and projects: https://www.researchgate.net/profile/Amir_Herzberg/contributions <https://www.researchgate.net/profile/Amir_Herzberg/publications> Lecture notes in intro to cyber: https://www.researchgate.net/project/Lecture-notes-on-Introduction-to-Cyber…

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Re: BGP Experiment
by Jakob Heitz (jheitz) 25 Jan '19

25 Jan '19

It does, Ytti. And not just in testing. In feature development too. Often in design discussions, someone pipes up: "someone does bla bla, Let's not break it". One I remember from years ago was setting two route reflectors as clients of each other and thinking route reflection wasn't designed for that. It's being aware of such customer "creativity" that keeps us on our toes. Regards, Jakob. -----Original Message----- From: Saku Ytti <saku(a)ytti.fi> Lot of vendor, maybe all, accept your configuration and test them for releases. I think this is only viable solution vendors have for blackbox, gather configs from customers and test those, instead of try to guess what to test. I've done that with Cisco in two companies, unfortunately I can't really tell if it impacted quality, but I like to think it did. -- ++ytti

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[ROUTING] Settle a pointless debate - more commonly used routing protocol in total deployments - OSPF vs IS-IS
by Steven Bahnsen 25 Jan '19

25 Jan '19

Hi, First time poster looking for some input on a debate and I apologise if I've done this completely wrong, but I don't think my colleague will be convinced until he hears it from this community. Granted I'm relatively green when it comes to networking, but it was my understand that other than BGP, the most widely used/implemented IGP would be OSPF. However, my colleague insists that I'm 100 percent wrong and that is IS-IS. I want to be clear, I'm not debating which protocol is better or worse, as they both have their strengths and weaknesses and ultimately it comes down to several factors based on a particular use-case on which routing protocol is the best way forward for a network. However in saying that, I believe that, when it comes to sheer numbers of where an IGP is implemented, OSPF is far more widely used in the world today, whether it be in small to medium to large businesses, Enterprise networks and even Service Provider networks (where as per my understanding, is where IS-IS really shines) I understand that this isn't really quantifiable, but I would like to get the opinions/experiences from this list and see what the outcome of this question is out of sheer curiosity. Thanks! Steve

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Weekly Routing Table Report
by cscora＠apnic.net 25 Jan '19

25 Jan '19

This is an automated weekly mailing describing the state of the Internet 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 http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. Routing Table Report 04:00 +10GMT Sat 26 Jan, 2019 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 735087 Prefixes after maximum aggregation (per Origin AS): 282856 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 353977 Total ASes present in the Internet Routing Table: 63043 Prefixes per ASN: 11.66 Origin-only ASes present in the Internet Routing Table: 54340 Origin ASes announcing only one prefix: 23554 Transit ASes present in the Internet Routing Table: 8703 Transit-only ASes present in the Internet Routing Table: 266 Average AS path length visible in the Internet Routing Table: 4.2 Max AS path length visible: 31 Max AS path prepend of ASN ( 16327) 25 Prefixes from unregistered ASNs in the Routing Table: 21 Number of instances of unregistered ASNs: 23 Number of 32-bit ASNs allocated by the RIRs: 25565 Number of 32-bit ASNs visible in the Routing Table: 20801 Prefixes from 32-bit ASNs in the Routing Table: 90165 Number of bogon 32-bit ASNs visible in the Routing Table: 16 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 280 Number of addresses announced to Internet: 2842185859 Equivalent to 169 /8s, 104 /16s and 80 /24s Percentage of available address space announced: 76.8 Percentage of allocated address space announced: 76.8 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.1 Total number of prefixes smaller than registry allocations: 246520 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 200062 Total APNIC prefixes after maximum aggregation: 57154 APNIC Deaggregation factor: 3.50 Prefixes being announced from the APNIC address blocks: 197213 Unique aggregates announced from the APNIC address blocks: 81461 APNIC Region origin ASes present in the Internet Routing Table: 9401 APNIC Prefixes per ASN: 20.98 APNIC Region origin ASes announcing only one prefix: 2654 APNIC Region transit ASes present in the Internet Routing Table: 1385 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 26 Number of APNIC region 32-bit ASNs visible in the Routing Table: 4402 Number of APNIC addresses announced to Internet: 769479202 Equivalent to 45 /8s, 221 /16s and 82 /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, 131072-139577 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: 217564 Total ARIN prefixes after maximum aggregation: 103205 ARIN Deaggregation factor: 2.11 Prefixes being announced from the ARIN address blocks: 216843 Unique aggregates announced from the ARIN address blocks: 103859 ARIN Region origin ASes present in the Internet Routing Table: 18333 ARIN Prefixes per ASN: 11.83 ARIN Region origin ASes announcing only one prefix: 6813 ARIN Region transit ASes present in the Internet Routing Table: 1849 Average ARIN Region AS path length visible: 3.9 Max ARIN Region AS path length visible: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2556 Number of ARIN addresses announced to Internet: 1079577248 Equivalent to 64 /8s, 89 /16s and 10 /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, 393216-399260 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, 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: 201876 Total RIPE prefixes after maximum aggregation: 96105 RIPE Deaggregation factor: 2.10 Prefixes being announced from the RIPE address blocks: 198122 Unique aggregates announced from the RIPE address blocks: 117149 RIPE Region origin ASes present in the Internet Routing Table: 25785 RIPE Prefixes per ASN: 7.68 RIPE Region origin ASes announcing only one prefix: 11496 RIPE Region transit ASes present in the Internet Routing Table: 3619 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 28 Number of RIPE region 32-bit ASNs visible in the Routing Table: 7780 Number of RIPE addresses announced to Internet: 716486080 Equivalent to 42 /8s, 180 /16s and 181 /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 196608-210331 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: 95321 Total LACNIC prefixes after maximum aggregation: 22183 LACNIC Deaggregation factor: 4.30 Prefixes being announced from the LACNIC address blocks: 96713 Unique aggregates announced from the LACNIC address blocks: 42119 LACNIC Region origin ASes present in the Internet Routing Table: 8009 LACNIC Prefixes per ASN: 12.08 LACNIC Region origin ASes announcing only one prefix: 2174 LACNIC Region transit ASes present in the Internet Routing Table: 1495 Average LACNIC Region AS path length visible: 5.0 Max LACNIC Region AS path length visible: 31 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 5558 Number of LACNIC addresses announced to Internet: 173208064 Equivalent to 10 /8s, 82 /16s and 242 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-270748 + 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: 20242 Total AfriNIC prefixes after maximum aggregation: 4191 AfriNIC Deaggregation factor: 4.83 Prefixes being announced from the AfriNIC address blocks: 25916 Unique aggregates announced from the AfriNIC address blocks: 9144 AfriNIC Region origin ASes present in the Internet Routing Table: 1233 AfriNIC Prefixes per ASN: 21.02 AfriNIC Region origin ASes announcing only one prefix: 417 AfriNIC Region transit ASes present in the Internet Routing Table: 244 Average AfriNIC Region AS path length visible: 4.4 Max AfriNIC Region AS path length visible: 20 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 505 Number of AfriNIC addresses announced to Internet: 103030272 Equivalent to 6 /8s, 36 /16s and 30 /24s AfriNIC AS Blocks 36864-37887, 327680-328703 & 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 4538 4653 4192 74 ERX-CERNET-BKB China Education and Rese 7545 4594 526 522 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3048 1160 100 VIETEL-AS-AP Viettel Group, VN 45899 3000 1721 111 VNPT-AS-VN VNPT Corp, VN 4766 2811 11127 767 KIXS-AS-KR Korea Telecom, KR 9829 2749 1496 550 BSNL-NIB National Internet Backbone, IN 9808 2475 8699 26 CMNET-GD Guangdong Mobile Communication 9394 2406 4906 29 CTTNET China TieTong Telecommunications 4755 2145 438 183 TATACOMM-AS TATA Communications formerl 17974 2036 968 50 TELKOMNET-AS2-AP PT Telekomunikasi Indo Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6327 3536 1322 87 SHAW - Shaw Communications Inc., CA 11492 3486 225 616 CABLEONE - CABLE ONE, INC., US 22773 3313 2980 174 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi 16509 2621 5377 1003 AMAZON-02 - Amazon.com, Inc., US 16625 2272 1248 1714 AKAMAI-AS - Akamai Technologies, Inc., 20115 2153 2759 536 CHARTER-20115 - Charter Communications, 18566 2136 405 108 MEGAPATH5-US - MegaPath Corporation, US 30036 2122 356 114 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom 5650 2089 3074 1462 FRONTIER-FRTR - Frontier Communications 209 2071 5076 580 CENTURYLINK-US-LEGACY-QWEST - CenturyLi Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 5320 1628 138 UNI2-AS, ES 39891 3778 203 20 ALJAWWALSTC-AS, SA 8551 3277 378 43 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 2625 561 1923 AKAMAI-ASN1, US 12389 2228 2220 631 ROSTELECOM-AS, RU 34984 2067 339 528 TELLCOM-AS, TR 9121 1685 1691 17 TTNET, TR 13188 1604 100 46 TRIOLAN, UA 9009 1309 144 735 M247, GB 8402 1305 545 15 CORBINA-AS OJSC "Vimpelcom", RU Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 5532 3323 587 Uninet S.A. de C.V., MX 10620 3003 453 963 Telmex Colombia S.A., CO 11830 2683 371 60 Instituto Costarricense de Electricidad 6503 1583 449 55 Axtel, S.A.B. de C.V., MX 7303 1441 965 226 Telecom Argentina S.A., AR 6147 1271 377 29 Telefonica del Peru S.A.A., PE 28573 1181 2239 183 CLARO S.A., BR 3816 1029 511 115 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 11172 932 144 67 Alestra, S. de R.L. de C.V., MX 18881 920 1114 28 TELEFÔNICA BRASIL S.A, BR Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1145 393 21 LINKdotNET-AS, EG 37611 904 107 9 Afrihost, ZA 36992 800 1411 44 ETISALAT-MISR, EG 36903 797 401 139 MT-MPLS, MA 24835 684 634 21 RAYA-AS, EG 8452 629 1731 20 TE-AS TE-AS, EG 29571 485 70 13 ORANGE-COTE-IVOIRE, CI 37492 468 470 57 ORANGE-, TN 15399 425 45 11 WANANCHI-, KE 37342 418 32 1 MOVITEL, MZ Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 5532 3323 587 Uninet S.A. de C.V., MX 12479 5320 1628 138 UNI2-AS, ES 4538 4653 4192 74 ERX-CERNET-BKB China Education and Rese 7545 4594 526 522 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 3778 203 20 ALJAWWALSTC-AS, SA 6327 3536 1322 87 SHAW - Shaw Communications Inc., CA 11492 3486 225 616 CABLEONE - CABLE ONE, INC., US 22773 3313 2980 174 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi 8551 3277 378 43 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 7552 3048 1160 100 VIETEL-AS-AP Viettel Group, VN Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 12479 5320 5182 UNI2-AS, ES 4538 4653 4579 ERX-CERNET-BKB China Education and Research Net 7545 4594 4072 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 3778 3758 ALJAWWALSTC-AS, SA 6327 3536 3449 SHAW - Shaw Communications Inc., CA 8551 3277 3234 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 22773 3313 3139 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 3048 2948 VIETEL-AS-AP Viettel Group, VN 45899 3000 2889 VNPT-AS-VN VNPT Corp, VN 11492 3486 2870 CABLEONE - CABLE ONE, INC., US Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 230105 UNALLOCATED 38.110.79.0/24 23015 CMC180-TOR-AS - Cambridge Merc 266842 UNALLOCATED 45.238.156.0/22 265680 HNTELCO S.A, HN 64339 UNALLOCATED 143.0.108.0/22 18747 IFX18747 - IFX Corporation, US 64355 UNALLOCATED 156.40.196.0/24 30387 NIH-NET-NCCS - National Instit 64011 UNALLOCATED 166.133.128.0/18 20057 ATT-MOBILITY-LLC-AS20057 - AT& 64011 UNALLOCATED 166.133.192.0/18 20057 ATT-MOBILITY-LLC-AS20057 - AT& 64011 UNALLOCATED 166.184.9.0/24 20057 ATT-MOBILITY-LLC-AS20057 - AT& 64011 UNALLOCATED 166.220.64.0/19 20057 ATT-MOBILITY-LLC-AS20057 - AT& 64011 UNALLOCATED 166.220.96.0/19 20057 ATT-MOBILITY-LLC-AS20057 - AT& 64141 UNALLOCATED 181.119.152.0/24 264619 Wireless Provider, AR Complete listing at http://thyme.rand.apnic.net/current/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 198.18.1.19/32 7497 CSTNET-AS-AP Computer Network Information Cente Complete listing at http://thyme.rand.apnic.net/current/data-dsua Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 23.170.96.0/24 29916 AS-TIC - The Internet Company Limited Partnership, 27.100.7.0/24 56096 UNKNOWN 27.126.156.0/22 55827 UNKNOWN 27.126.156.0/23 55827 UNKNOWN 27.126.158.0/23 55827 UNKNOWN 41.76.136.0/22 37500 -Reserved AS-, ZZ 41.76.140.0/22 37500 -Reserved AS-, ZZ 41.78.92.0/22 14988 BTC-GATE1, BW 41.78.180.0/23 37265 -Reserved AS-, ZZ 43.255.80.0/24 36351 SOFTLAYER - SoftLayer Technologies Inc., US Complete listing at http://thyme.rand.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 /8:12 /9:10 /10:36 /11:99 /12:292 /13:568 /14:1128 /15:1917 /16:13372 /17:7875 /18:13833 /19:25553 /20:39707 /21:46145 /22:91375 /23:74966 /24:415370 /25:918 /26:821 /27:865 /28:20 /29:6 /30:7 /31:0 /32:192 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 4166 5320 UNI2-AS, ES 6327 3302 3536 SHAW - Shaw Communications Inc., CA 39891 2946 3778 ALJAWWALSTC-AS, SA 11492 2758 3486 CABLEONE - CABLE ONE, INC., US 8551 2733 3277 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 22773 2551 3313 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 18566 2031 2136 MEGAPATH5-US - MegaPath Corporation, US 11830 2029 2683 Instituto Costarricense de Electricidad y Telec 30036 1868 2122 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi 5650 1761 2089 FRONTIER-FRTR - Frontier Communications of Amer Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1613 2:897 4:23 5:2787 6:43 7:1 8:1174 12:1869 13:314 14:1866 15:37 16:2 17:219 18:59 20:49 23:2597 24:2461 25:2 27:2562 31:2044 32:92 35:35 36:832 37:3010 38:1609 39:288 40:122 41:3125 42:726 43:2001 44:139 45:6534 46:3214 47:248 49:1331 50:1087 51:321 52:1072 54:360 55:1 56:6 57:41 58:1716 59:1055 60:481 61:2076 62:2208 63:1807 64:5093 65:2199 66:4829 67:2685 68:1158 69:3476 70:1151 71:604 72:2287 74:2757 75:418 76:543 77:1727 78:1755 79:2313 80:1645 81:1432 82:1101 83:905 84:1084 85:2137 86:556 87:1550 88:985 89:2420 90:211 91:6559 92:1241 93:2433 94:2497 95:3215 96:917 97:349 98:941 99:169 100:87 101:1226 102:364 103:19892 104:3555 105:246 106:879 107:1816 108:695 109:3656 110:1649 111:1870 112:1404 113:1405 114:1150 115:1724 116:1653 117:1918 118:2186 119:1642 120:1044 121:1027 122:2359 123:1641 124:1408 125:1950 128:1227 129:677 130:523 131:1639 132:718 133:218 134:1047 135:230 136:547 137:680 138:1948 139:820 140:570 141:791 142:802 143:995 144:900 145:504 146:1248 147:798 148:1715 149:801 150:780 151:987 152:982 153:324 154:2420 155:966 156:1644 157:894 158:656 159:1907 160:1497 161:918 162:2672 163:771 164:1122 165:1574 166:438 167:1377 168:3259 169:870 170:4010 171:500 172:1071 173:2171 174:999 175:876 176:2299 177:4041 178:2564 179:1292 180:2088 181:2442 182:2688 183:1060 184:1142 185:14630 186:3701 187:2434 188:2955 189:2038 190:8354 191:1420 192:10058 193:6528 194:5338 195:4039 196:2926 197:1732 198:5719 199:5963 200:7325 201:5058 202:10143 203:10133 204:4616 205:3006 206:3303 207:3271 208:3948 209:4232 210:3925 211:1985 212:3056 213:2843 214:1081 215:52 216:5985 217:2193 218:916 219:573 220:1842 221:994 222:980 223:1432 End of report

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Los Angeles Meet Up
by Mehmet Akcin 25 Jan '19

25 Jan '19

Hey there We are (couple of NANOGers) planning a small get together in LA area(still deciding the date). If you are interested in meeting up with others from industry. Please feel free to drop me a message offlist. Thank you -- Mehmet +1-424-298-1903

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Looking for contact from AS24218
by Grzegorz Dabrowski 24 Jan '19

24 Jan '19

Hello, I've already send to all address I could get from whois/web page and got nothing :(. Please be so kinde and write to me privately. Regards, -- Grzegorz Dabrowski

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IPv6 Residential Deployment Survey
by John Curran 24 Jan '19

24 Jan '19

NANOGers - If you are providing residential Internet service with IPv6 (or are a customer of same), please take a moment to complete Jordi’s survey - this will help provide insight into the actual technical practices being used in residential IPv6 deployment. More details in attached email - Thanks! /John Begin forwarded message: From: John Curran <jcurran(a)arin.net<mailto:jcurran@arin.net>> Subject: [arin-ppml] IPv6 Residential Deployment Survey Date: May 22, 2016 at 6:24:17 AM GMT+2 To: ARIN PPML <ppml(a)arin.net<mailto:ppml@arin.net>> Folks - Jordi Palet Martínez is conducting a brief survey regarding IPv6 deployment in residential Internet service. Having insight into the various practices that are in use may help to inform IPv6 number resource policy development, and thus I ask that you take a moment to complete the survey if you are providing such services (whether production or trial basis.) Jordi notes - "The results will be published and updated every month or so - No personal data will be published. (If you know your network, it takes less than 2 minutes to complete it) The survey can be responded even if is not yet a commercial service, and customers can also respond, not just the ISP. However, to avoid duplicate data, make sure to include the country and ISP name.” The IPv6 Residential Deployment Survey may be found here - <http://survey.consulintel.es/index.php/175122> Thanks! /John John Curran President and CEO ARIN

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A survey about networking incidents
by Yu, Minlan 24 Jan '19

24 Jan '19

Hi Nanog, We all know that networks are at the heart of many of the systems we use today. When these systems break, the underlying networks are often the first suspects. Networks are hard to diagnose and they are most likely to be blamed for problems even if they are completely healthy. As networking engineers, we have all seen cases where another part of the system was causing an issue but the network was held the suspect until the problem was resolved. We are researchers from Harvard and The University of Pennsylvania who are interested in understanding this problem and its impact better in order to build a solution. Our goal is to be able to quickly rule out the network as a root cause for incidents in order to be able to speed up diagnosis and also to improve operator efficiency. We are interested in learning the answer to a few questions. Specifically, we would like to know: How often do you see problems where the network is blamed but after investigating you find the problem to be caused by some other part of the system? How often have you had incidents where the cause of the incident was outside of the boundary of your organization? How much do you think fixing this problem can help you and your organization more quickly diagnose problems? We have created a *very* short survey to be able to get an operator's perspective on these questions. It should take less than 15 minutes to finish. The findings should help us as well as the research community at large to be able to build a solution that can benefit all types of networks, of different sizes, to improve how they do the diagnosis. We will be presenting the results of this anonymous survey in a scientific article later this year. We will report back our research once it's finished. Survey URL: https://docs.google.com/forms/d/e/1FAIpQLScx-U54eQFQi5AdBCOOucMaI6BVmLwcMFi… We would greatly appreciate it if you could help us with this research. Please feel free forward this survey to other operators you know. Thank you! Minlan Yu http://minlanyu.seas.harvard.edu/

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