October 2017 - Test - lists.nanog.org

100G - Whitebox
by Mike Hammett 04 Dec '17

04 Dec '17

I first sent to an IX-specific mailing list, but as I have yet to see the message hit the list, I figured I would post it here as well. We've had multiple requests for 100G interfaces (instead of Nx10G) and no one seems to care about the 40G interfaces we have available. Looking at cost effective options brings us to whitebox switches. Obviously there's a wide range of hardware vendors and there are a few OSes available as well. Cumulus seems to be the market leader, while IPinFusion seems to be the most feature-rich. We're not doing any automation on the switches at this time, so it would still need decent manual configuration. It wouldn't need a Cisco-centric CLI as we're quite comfortable managing standard Linux-type config files. We're not going all-in on some overlay either given that we wouldn't be replacing our entire infrastructure, only supplementing it where we need 100G. I know that LINX has gone IPinfusion. What OS would be appropriate for our usage? I'm not finding many good comparisons of the OSes out there. I'm assuming any of them would work, but there may be gotchas that a "cheapest that meets requirements" doesn't quite unveil. Any particular hardware platforms to go towards or avoid? Broadcom Tomahawk seems to be quite popular with varying control planes. LINX went Edgecore, which was on my list given my experience with other Accton brands. Fiberstore has a switch where they actually publish the pricing vs. a bunch of mystery. Thoughts? ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest-IX http://www.midwest-ix.com

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IPv6 first hop security on a budget?
by Joel Whitehouse 11 Nov '17

11 Nov '17

What's a good budget option for switching a small lab or office ipv6 with RA Guard, DHCP6 snooping, and ICMP6 snooping?

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Calgary <-> Toronto 100% Canadian Fibre Resiliency on failover
by Jacques Latour 02 Nov '17

02 Nov '17

Hi, Does anyone know if there's fibre resiliency between Calgary and Toronto over the Great lakes, I thinking redundancy could be achieved by using two paths one following the railroad and the other following the Trans-Canadian highway. Does anyone know if there is fibre following the Trans-Canadian highway and who owns it? Is this achievable? Thanks, Jacques CTO, CIRA

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What's the point of prepend communities?
by Jason Lixfeld 01 Nov '17

01 Nov '17

Hi, Of all the ISPs that I am familiar with that have a BGP community structure usable by their peering partners and/or downstream customers, among other things, they allow the customer to signal the ISP to prepend their own AS to the as-path of a particular prefix announcement. What functionality does a provider prepend support that is otherwise lost in the absence of such a feature, but all the while, the customer would be able to prepend their own AS to the same prefix announcement anyway? Is this a relic from before ISPs allowed for local preference adjustment, or is there actually a use case for this? Thanks!

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Physical Layer fiber Software Tools?
by Craig 30 Oct '17

30 Oct '17

I am hoping someone could help me out with some suggestions for any software that is available, for individuals that are doing physical layer wiring in a data center? The idea is the technician is performing the fiber runs from say RACK 111 router AAA port 1/1/1 to RACK 222 router BBB port 1/1/1 The fiber is connected to a LIU in the TOP of the rack, and then will require various cross connects to get to the other rack. If the various racks and LIU's are pre-populated into the software, and then a standard for the fiber labels is also installed ahead of time into the software tool. The technician has a tablet or laptop to enter the data, and then it will print out a cable label based on the info entered into the tool. The back-end data base is updated for each fiber so the complete path is known. This way its a one step process. Maybe my description of this is readily available or have other companies developed a custom software tool to achieve this? Appreciate any feedback.

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Weekly Routing Table Report
by cscora＠apnic.net 27 Oct '17

27 Oct '17

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, CaribNOG TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG, IRNOG 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 28 Oct, 2017 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 666071 Prefixes after maximum aggregation (per Origin AS): 259795 Deaggregation factor: 2.56 Unique aggregates announced (without unneeded subnets): 322065 Total ASes present in the Internet Routing Table: 58852 Prefixes per ASN: 11.32 Origin-only ASes present in the Internet Routing Table: 50848 Origin ASes announcing only one prefix: 22395 Transit ASes present in the Internet Routing Table: 8004 Transit-only ASes present in the Internet Routing Table: 234 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 30 Max AS path prepend of ASN (206156) 26 Prefixes from unregistered ASNs in the Routing Table: 88 Number of instances of unregistered ASNs: 88 Number of 32-bit ASNs allocated by the RIRs: 20390 Number of 32-bit ASNs visible in the Routing Table: 16223 Prefixes from 32-bit ASNs in the Routing Table: 66799 Number of bogon 32-bit ASNs visible in the Routing Table: 21 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 385 Number of addresses announced to Internet: 2857706336 Equivalent to 170 /8s, 85 /16s and 35 /24s Percentage of available address space announced: 77.2 Percentage of allocated address space announced: 77.2 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 98.7 Total number of prefixes smaller than registry allocations: 219410 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 184054 Total APNIC prefixes after maximum aggregation: 52741 APNIC Deaggregation factor: 3.49 Prefixes being announced from the APNIC address blocks: 183169 Unique aggregates announced from the APNIC address blocks: 75547 APNIC Region origin ASes present in the Internet Routing Table: 8433 APNIC Prefixes per ASN: 21.72 APNIC Region origin ASes announcing only one prefix: 2350 APNIC Region transit ASes present in the Internet Routing Table: 1211 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 29 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3283 Number of APNIC addresses announced to Internet: 766194656 Equivalent to 45 /8s, 171 /16s and 51 /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, 131072-137529 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: 199932 Total ARIN prefixes after maximum aggregation: 96511 ARIN Deaggregation factor: 2.07 Prefixes being announced from the ARIN address blocks: 201370 Unique aggregates announced from the ARIN address blocks: 94150 ARIN Region origin ASes present in the Internet Routing Table: 18008 ARIN Prefixes per ASN: 11.18 ARIN Region origin ASes announcing only one prefix: 6660 ARIN Region transit ASes present in the Internet Routing Table: 1778 Average ARIN Region AS path length visible: 3.8 Max ARIN Region AS path length visible: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2237 Number of ARIN addresses announced to Internet: 1110357280 Equivalent to 66 /8s, 46 /16s and 181 /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, 393216-397212 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: 178976 Total RIPE prefixes after maximum aggregation: 87538 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 174947 Unique aggregates announced from the RIPE address blocks: 105618 RIPE Region origin ASes present in the Internet Routing Table: 24529 RIPE Prefixes per ASN: 7.13 RIPE Region origin ASes announcing only one prefix: 11210 RIPE Region transit ASes present in the Internet Routing Table: 3493 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 6305 Number of RIPE addresses announced to Internet: 713466496 Equivalent to 42 /8s, 134 /16s and 162 /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 196608-207259 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: 85317 Total LACNIC prefixes after maximum aggregation: 19009 LACNIC Deaggregation factor: 4.49 Prefixes being announced from the LACNIC address blocks: 86557 Unique aggregates announced from the LACNIC address blocks: 39214 LACNIC Region origin ASes present in the Internet Routing Table: 6516 LACNIC Prefixes per ASN: 13.28 LACNIC Region origin ASes announcing only one prefix: 1823 LACNIC Region transit ASes present in the Internet Routing Table: 1193 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 25 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 4037 Number of LACNIC addresses announced to Internet: 172714208 Equivalent to 10 /8s, 75 /16s and 104 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-268700 + 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: 17702 Total AfriNIC prefixes after maximum aggregation: 3921 AfriNIC Deaggregation factor: 4.51 Prefixes being announced from the AfriNIC address blocks: 19643 Unique aggregates announced from the AfriNIC address blocks: 7220 AfriNIC Region origin ASes present in the Internet Routing Table: 1095 AfriNIC Prefixes per ASN: 17.94 AfriNIC Region origin ASes announcing only one prefix: 351 AfriNIC Region transit ASes present in the Internet Routing Table: 214 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 21 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 361 Number of AfriNIC addresses announced to Internet: 94477824 Equivalent to 5 /8s, 161 /16s and 158 /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 5270 4192 76 ERX-CERNET-BKB China Education and Rese 7545 4017 408 407 TPG-INTERNET-AP TPG Telecom Limited, AU 4766 2787 11128 752 KIXS-AS-KR Korea Telecom, KR 17974 2784 900 77 TELKOMNET-AS2-AP PT Telekomunikasi Indo 9829 2764 1499 541 BSNL-NIB National Internet Backbone, IN 9808 2398 8699 32 CMNET-GD Guangdong Mobile Communication 45899 2344 1490 147 VNPT-AS-VN VNPT Corp, VN 9394 2174 4931 27 CTTNET China TieTong Telecommunications 4755 2109 422 222 TATACOMM-AS TATA Communications formerl 7552 2084 1170 77 VIETEL-AS-AP Viettel Corporation, VN 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 3344 1325 92 SHAW - Shaw Communications Inc., CA 22773 3306 2952 158 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi 18566 2175 405 107 MEGAPATH5-US - MegaPath Corporation, US 6389 2045 3671 39 BELLSOUTH-NET-BLK - BellSouth.net Inc., 20115 2045 2281 435 CHARTER-NET-HKY-NC - Charter Communicat 209 1947 5066 651 CENTURYLINK-US-LEGACY-QWEST - Qwest Com 16509 1872 4035 567 AMAZON-02 - Amazon.com, Inc., US 30036 1835 328 305 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom 11492 1625 237 573 CABLEONE - CABLE ONE, INC., US 701 1577 10589 626 UUNET - MCI Communications Services, In 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 39891 3387 186 23 ALJAWWALSTC-AS, SA 20940 2828 847 2053 AKAMAI-ASN1, US 8551 2468 378 42 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 34984 2065 331 427 TELLCOM-AS, TR 12389 1880 1679 714 ROSTELECOM-AS, RU 12479 1815 1063 72 UNI2-AS, ES 9121 1795 1691 17 TTNET, TR 13188 1602 100 67 TRIOLAN, UA 6849 1225 355 21 UKRTELNET, UA 8402 1220 544 14 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 10620 3547 538 286 Telmex Colombia S.A., CO 8151 3222 3463 582 Uninet S.A. de C.V., MX 11830 2329 367 41 Instituto Costarricense de Electricidad 6503 1596 437 53 Axtel, S.A.B. de C.V., MX 7303 1482 1014 195 Telecom Argentina S.A., AR 6147 1272 377 27 Telefonica del Peru S.A.A., PE 3816 1031 509 103 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 28573 1001 2304 179 CLARO S.A., BR 11172 913 126 86 Alestra, S. de R.L. de C.V., MX 18881 902 1060 26 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 1218 398 48 LINKdotNET-AS, EG 37611 778 91 8 Afrihost, ZA 36903 704 354 142 MT-MPLS, MA 36992 668 1383 31 ETISALAT-MISR, EG 24835 515 850 15 RAYA-AS, EG 8452 510 1730 17 TE-AS TE-AS, EG 29571 428 36 10 CITelecom-AS, CI 37492 416 354 77 ORANGE-, TN 15399 356 35 7 WANANCHI-, KE 2018 298 327 73 TENET-1, ZA 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 4538 5270 4192 76 ERX-CERNET-BKB China Education and Rese 7545 4017 408 407 TPG-INTERNET-AP TPG Telecom Limited, AU 10620 3547 538 286 Telmex Colombia S.A., CO 39891 3387 186 23 ALJAWWALSTC-AS, SA 6327 3344 1325 92 SHAW - Shaw Communications Inc., CA 22773 3306 2952 158 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi 8151 3222 3463 582 Uninet S.A. de C.V., MX 20940 2828 847 2053 AKAMAI-ASN1, US 4766 2787 11128 752 KIXS-AS-KR Korea Telecom, KR 17974 2784 900 77 TELKOMNET-AS2-AP PT Telekomunikasi Indo Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 7545 4017 3610 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 3387 3364 ALJAWWALSTC-AS, SA 10620 3547 3261 Telmex Colombia S.A., CO 6327 3344 3252 SHAW - Shaw Communications Inc., CA 22773 3306 3148 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 17974 2784 2707 TELKOMNET-AS2-AP PT Telekomunikasi Indonesia, I 8151 3222 2640 Uninet S.A. de C.V., MX 8551 2468 2426 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 9808 2398 2366 CMNET-GD Guangdong Mobile Communication Co.Ltd. 11830 2329 2288 Instituto Costarricense de Electricidad y Telec Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 65602 UNALLOCATED 8.225.192.0/24 30372 SUNESYS2 - Sunesys, LLC, US 64525 PRIVATE 45.119.143.0/24 133275 GIGANTIC-AS Gigantic Infotel P 64525 PRIVATE 45.125.62.0/24 133275 GIGANTIC-AS Gigantic Infotel P 65530 PRIVATE 45.249.40.0/24 133720 SOFTCALLCOC-AS SOFT CALL CUST- 65001 PRIVATE 46.237.40.0/21 13118 ASN-YARTELECOM PJSC Rostelecom 65534 PRIVATE 58.68.109.0/24 10201 DWL-AS-IN Dishnet Wireless Lim 64513 PRIVATE 62.150.101.0/24 9155 QNET Kuwait, KW 290012147 UNALLOCATED 63.65.43.0/24 7046 RFC2270-UUNET-CUSTOMER - MCI C 65538 DOCUMENT 64.27.253.0/24 1273 CW Vodafone Group PLC, GB 65543 DOCUMENT 79.98.33.0/24 43950 SPILSBY-AS =================== Complete listing at http://thyme.rand.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 14.128.14.0/23 10247 NETLINE, ZA 14.192.50.0/23 10247 NETLINE, ZA 14.192.58.0/23 10247 NETLINE, ZA 27.100.7.0/24 56096 UNKNOWN 36.255.250.0/23 10247 NETLINE, ZA 41.78.180.0/23 37265 -Reserved AS-, ZZ 43.228.144.0/22 9829 BSNL-NIB National Internet Backbone, IN 43.251.20.0/22 9381 WTT-AS-AP WTT HK Limited, HK 43.251.84.0/22 133676 PNPL-AS Precious netcom pvt ltd, IN 43.251.84.0/23 133676 PNPL-AS Precious netcom pvt ltd, IN 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 /8:15 /9:13 /10:36 /11:106 /12:285 /13:552 /14:1053 /15:1862 /16:13397 /17:7751 /18:13618 /19:25274 /20:39127 /21:43017 /22:80637 /23:65697 /24:371409 /25:847 /26:624 /27:651 /28:35 /29:21 /30:15 /31:2 /32:27 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6327 3138 3344 SHAW - Shaw Communications Inc., CA 39891 2946 3387 ALJAWWALSTC-AS, SA 22773 2527 3306 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 18566 2070 2175 MEGAPATH5-US - MegaPath Corporation, US 8551 1932 2468 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11830 1699 2329 Instituto Costarricense de Electricidad y Telec 30036 1607 1835 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi 10620 1533 3547 Telmex Colombia S.A., CO 11492 1445 1625 CABLEONE - CABLE ONE, INC., US 34984 1369 2065 TELLCOM-AS, TR Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1573 2:840 4:18 5:2491 6:36 7:1 8:1064 9:1 12:1850 13:164 14:1712 15:29 16:3 17:176 18:76 20:60 23:2462 24:1677 25:2 27:2359 29:1 31:1941 32:87 35:21 36:424 37:2409 38:1415 39:79 40:99 41:3033 42:509 43:1928 44:85 45:3138 46:2825 47:171 49:1331 50:1019 51:19 52:872 54:353 55:1 56:4 57:43 58:1570 59:995 60:356 61:2020 62:1738 63:1845 64:4604 65:2226 66:4443 67:2303 68:1190 69:3163 70:1129 71:588 72:2093 74:2626 75:390 76:409 77:1513 78:1558 79:1948 80:1413 81:1409 82:1019 83:747 84:981 85:1943 86:468 87:1206 88:855 89:2255 90:174 91:6194 92:1033 93:2321 94:2398 95:2640 96:649 97:352 98:963 99:97 100:153 101:1306 102:1 103:16097 104:3077 105:209 106:577 107:1696 108:825 109:2870 110:1497 111:1758 112:1294 113:1260 114:1058 115:1578 116:1655 117:1841 118:2158 119:1654 120:913 121:1074 122:2435 123:1873 124:1496 125:1817 128:955 129:661 130:445 131:1499 132:603 133:193 134:809 135:227 136:382 137:498 138:1940 139:538 140:380 141:666 142:750 143:916 144:797 145:188 146:1114 147:701 148:1519 149:592 150:707 151:1005 152:720 153:301 154:928 155:751 156:695 157:744 158:598 159:1600 160:815 161:732 162:2496 163:508 164:998 165:1442 166:388 167:1333 168:3059 169:818 170:3524 171:371 172:995 173:1906 174:814 175:760 176:1870 177:4007 178:2482 179:1125 180:2205 181:2092 182:2469 183:815 184:879 185:11210 186:3315 187:2305 188:2611 189:1866 190:8161 191:1351 192:9690 193:5841 194:4734 195:3954 196:2204 197:1237 198:5536 199:5872 200:7169 201:4601 202:10340 203:9976 204:4526 205:2854 206:3021 207:3126 208:3983 209:3893 210:3935 211:2092 212:2851 213:2572 214:843 215:65 216:5696 217:2104 218:921 219:599 220:1670 221:941 222:724 223:1298 End of report

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Ping a Comcast Business DNS Admin?
by Aaron C. de Bruyn 26 Oct '17

26 Oct '17

I'm hoping a Comcast engineer can clear something up for me: If I recall correctly siteprotect.com is used by Comcast Business hosting. We have a mutual customer who has their domain NS pointed at ADNS.CS.SITEPROTECT.COM and BDNS.CS.SITEPROTECT.COM and those servers resolve their domain properly, but as of two weeks ago I no longer have the option to edit the customer's zone when signing in to businessclass.comcast.net. Phone reps have said "we don't manage you DNS" or "NetSol is their registrar", or even "Hmm...you're right, there's something wrong, but I don't know what's going on". On top of all of that, Comcast told this mutual customer to update their DNS records because they are being migrated to Office 365. But the customer can't access it to edit it. Feel free to contact me off-list for the domain and customer details. -A

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Optimum network loop to peerless
by Dovid Bender 25 Oct '17

25 Oct '17

Is there anyone from Optimum on here see why you are internally looping traffic to 208.93.46.128/25?

1 0

Large amount of TCP resets today
by Zach Underwood 25 Oct '17

25 Oct '17

We are seeing a large number of tcp reset alerts today with a source AS of GOOGLE (15169), AMAZON-02 (16509), APPLE (714), APPLE-AUSTIN (6185), FACEBOOK (32934) and AKAMAI-ASN1 (20940). Does any one here know if something is going on like big os updates. -- Zach Underwood (RHCE,RHCSA,RHCT,UACA) My website <http://zachunderwood.me/> advance-networking.com

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Google DNS intermittent ServFail for Disney subdomain
by David Sotnick 25 Oct '17

25 Oct '17

Hi Nanog, I am principal network engineer for sister-studio to Disney Studios. They have been struggling with DNS issues since Thursday 12th October. By all accounts it appears as though *some* of the Google DNS resolvers cannot reach the authoritative nameservers for "studio.disney.com". This is causing ~20-30% of all DNS requests against Google Public DNS 8.8.8.8 / 8.8.4.4 to fail for requests in this subdomain. The name servers reside in 153.7.233.0/24. Might someone be able to *connect me* with someone at Google to assist my poor colleagues who are banging their heads against a brick wall here. Thank you, David

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