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40G reforming
by Baldur Norddahl 06 Feb '18

06 Feb '18

Hello Is it possible to reform a 40G signal as individual 10G links? The idea is to use a 40G QSFP multimode MTP module such as https://www.fs.com/products/44058.html. Then connect it using a MTP breakout cable such as https://www.fs.com/products/68049.html to get four dual fiber connectors. These are then connected to four 10G SFP+ multimode modules such as https://www.fs.com/products/11589.html. The reformer could be https://www.fs.com/products/43721.html. And finally the reformed signal can be transported using anything including DWDM modules such as https://www.fs.com/products/44058.html. Just using fs.com as a reference to the kind of equipment I am talking about. Many other vendors offer simelar products. The motivation for doing this is to get access to the many options that are available for 10G optics but not possible with 40G. Regards, Baldur

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Re: improving signal to noise ratio from centralized network syslogs
by Scott Weeks 05 Feb '18

05 Feb '18

--- jmaimon(a)jmaimon.com wrote: Centralized logging is a good thing. However, what happens is that every repetitive, annoying but not (usually) important thing fills up the log with reams of what you are not looking for. --------------------------------------- Apologies, I'm late to the party. But I just want to add one thing for the archives. It's along with what Rich Kulawiec said, "it forces you to look at your own data, which is really helpful. You'll be surprised at what you find if you've never done it before." This is accurate. It's fun to see what your network is putting out. This is all from memory (I've done it so many times it's in there permanently... :-) as I don't have a unix server or a router in front of me to use, so don't hold me to exact details... And it's mainly for the newbies. Have all the routers send to one syslog file, switches to another and other devices to a third on a *nix box: For example, send the router messages to /var/log/router.log and the switch messages to /var/log/switch.log This is done with the 'logging facility' command on the devices: After defining your syslog server's IP address and the level of messaging you want (I set it to debug because I want to see everything): on the routers: logging facility local0 on the switches: logging facility local1 on the logging server in: /etc/rsyslog.conf local0.* /var/log/router.log local1.* /var/log/switch.log Use logrotate to manage the log files as they can get quite large. Then, you can watch your network in real time like so (below is all one line): tail -f /var/log/router.log /var/log/switch.log | egrep -vi 'term1|term2|termN' 'egrep -v' takes out all the lines you don't want to see while the syslog messages scroll across the screen. Say there is a battery condition on router1 and a duplex mismatch on a switch I don't want to see: tail -f /var/log/router.log /var/log/switch.log | egrep -vi 'router1.*battery|switch1.*duplex.*mismatch' For me, N can get to 40-50 sometimes, so I put it into a shell script like so: vi log.sh --------------------------- #! /bin/sh tail -f /var/log/router.log /var/log/switch.log | egrep -v 'term1|term2|termN' --------------------------- then, run it like so: ./log.sh It's all netgeek fun-n-games from there on. :) scott

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Akamai caches hammering Sophos XG firewalls
by Jeremy Parr 05 Feb '18

05 Feb '18

Somewhat OT, but before I was a jack of all trades enterprise sysadmin, I was a jack of all trades ISP sysadmin. I'm seeing an issue at a few sites where I have Sophos XG firewalls deployed where the XG gets hammered on it's WAN interface by Akamai hosts with TCP re-transmissions. Anyone at Akamai who may have some background on this issue please reach out to me. The hosts currently in question are 24.244.145.137 and 24.244.145.139, but I suspect that is only due to these being closest to me, colocated at my ISP AS15146.

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Re: improving signal to noise ratio from centralized network syslogs
by Scott Weeks 05 Feb '18

05 Feb '18

--- shane(a)short.id.au wrote: In addition to that, you can use some fancy awk colour coding, so you can make it highlight certain lines based on content.. I use this for my e-mail logs, but I’m sure it could be adapted: tail -n 1000 -f /var/log/mail-submission.log | grep smtp.*relay | awk ' /sent/ {print "\033[32m" $0 "\033[39m"} /bounced/ {print "\033[31m" $0 "\033[39m"} /deferred/ {print "\033[33m" $0 "\033[39m"} ---------------------------------------------------- The main thing for me is to find things that your network is doing that you weren't aware of. Not normal things you want to see that a monitoring system will alert you about. scott

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RADB - aut-num policy question
by Ryan, Spencer 04 Feb '18

04 Feb '18

Hello all, I'm a bit out of my element on this one and hoping someone can help. I'm putting together an aut-num entry for RADB and have a question about our Comcast peerings. We peer with AS7922 in several sites, but if you look at the actual pathing via bgp.he.net or just the routes themselves you can see that the first AS in the path after ours is either 7015 or 33668 depending on region for the paths that prefer comcast's network. For the import/export policy can I just reference 7922 or do I also need to include the others? Thanks in advance! Spencer Ryan | Senior Systems Administrator | sryan(a)arbor.net<mailto:sryan@arbor.net> Arbor Networks | The security division of NETSCOUT +1.734.794.5033 (d) | +1.734.846.2053 (m) www.arbornetworks.com<http://www.arbornetworks.com/>

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Merit radb https interface, TLS1.0 only?
by Eric Kuhnke 03 Feb '18

03 Feb '18

Is the radb login page supposed to be TLS1.0 only? This is with the latest version of Firefox. Screenshot: https://imgur.com/nnlFmLZ I also noticed that the registration page is plain http/non TLS. for reference: https://www.google.com/search?client=ubuntu&channel=fs&q=tls+1.0+deprecated…

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listserv hosed? [Was: Fwd: nanog.org mailing list memberships reminder]
by Paul Ferguson 02 Feb '18

02 Feb '18

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 oh noes. the listserv deded. Started getting a series of these just now from the past. :-) And yes, the headers reveal that they are indeed coming from the NANOG listserv/MailMan. Can someone please fix that? kthxbai. :-) - - ferg - -------- Forwarded Message -------- Subject: nanog.org mailing list memberships reminder Date: Fri, 01 Sep 2017 05:00:40 +0000 From: mailman-owner(a)nanog.org To: fergdawgster(a)mykolab.com This is a reminder, sent out once a month, about your nanog.org mailing list memberships. It includes your subscription info and how to use it to change it or unsubscribe from a list. [...] - -- Paul Ferguson ICEBRG.io, Seattle USA -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iF4EAREIAAYFAlpz4g8ACgkQKJasdVTchbIYkwD/YKFV2FP6R+Ow0o2HuiWfAD/H +7s2kWMowu0L3rpu1ssA/j+NTaDvydw99/BHG3ZAfj8XYItxDU8zYC976kS81AvF =Rexp -----END PGP SIGNATURE-----

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Weekly Routing Table Report
by cscora＠apnic.net 02 Feb '18

02 Feb '18

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 03 Feb, 2018 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 683343 Prefixes after maximum aggregation (per Origin AS): 264741 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 329756 Total ASes present in the Internet Routing Table: 59719 Prefixes per ASN: 11.44 Origin-only ASes present in the Internet Routing Table: 51573 Origin ASes announcing only one prefix: 22679 Transit ASes present in the Internet Routing Table: 8146 Transit-only ASes present in the Internet Routing Table: 249 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 34 Max AS path prepend of ASN ( 30873) 32 Prefixes from unregistered ASNs in the Routing Table: 59 Number of instances of unregistered ASNs: 60 Number of 32-bit ASNs allocated by the RIRs: 21370 Number of 32-bit ASNs visible in the Routing Table: 17156 Prefixes from 32-bit ASNs in the Routing Table: 70940 Number of bogon 32-bit ASNs visible in the Routing Table: 13 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 336 Number of addresses announced to Internet: 2858256034 Equivalent to 170 /8s, 93 /16s and 134 /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: 98.8 Total number of prefixes smaller than registry allocations: 225749 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 188424 Total APNIC prefixes after maximum aggregation: 53664 APNIC Deaggregation factor: 3.51 Prefixes being announced from the APNIC address blocks: 187544 Unique aggregates announced from the APNIC address blocks: 77378 APNIC Region origin ASes present in the Internet Routing Table: 8617 APNIC Prefixes per ASN: 21.76 APNIC Region origin ASes announcing only one prefix: 2448 APNIC Region transit ASes present in the Internet Routing Table: 1264 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3523 Number of APNIC addresses announced to Internet: 767340322 Equivalent to 45 /8s, 188 /16s and 175 /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: 203949 Total ARIN prefixes after maximum aggregation: 97708 ARIN Deaggregation factor: 2.09 Prefixes being announced from the ARIN address blocks: 204769 Unique aggregates announced from the ARIN address blocks: 96443 ARIN Region origin ASes present in the Internet Routing Table: 18070 ARIN Prefixes per ASN: 11.33 ARIN Region origin ASes announcing only one prefix: 6682 ARIN Region transit ASes present in the Internet Routing Table: 1797 Average ARIN Region AS path length visible: 3.8 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2301 Number of ARIN addresses announced to Internet: 1108936224 Equivalent to 66 /8s, 25 /16s and 6 /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: 184591 Total RIPE prefixes after maximum aggregation: 89911 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 180884 Unique aggregates announced from the RIPE address blocks: 108562 RIPE Region origin ASes present in the Internet Routing Table: 24840 RIPE Prefixes per ASN: 7.28 RIPE Region origin ASes announcing only one prefix: 11318 RIPE Region transit ASes present in the Internet Routing Table: 3483 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 6610 Number of RIPE addresses announced to Internet: 713614976 Equivalent to 42 /8s, 136 /16s and 230 /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: 88114 Total LACNIC prefixes after maximum aggregation: 19461 LACNIC Deaggregation factor: 4.53 Prefixes being announced from the LACNIC address blocks: 89454 Unique aggregates announced from the LACNIC address blocks: 39866 LACNIC Region origin ASes present in the Internet Routing Table: 6803 LACNIC Prefixes per ASN: 13.15 LACNIC Region origin ASes announcing only one prefix: 1867 LACNIC Region transit ASes present in the Internet Routing Table: 1257 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 31 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 4331 Number of LACNIC addresses announced to Internet: 172324320 Equivalent to 10 /8s, 69 /16s and 117 /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: 18204 Total AfriNIC prefixes after maximum aggregation: 3951 AfriNIC Deaggregation factor: 4.61 Prefixes being announced from the AfriNIC address blocks: 20356 Unique aggregates announced from the AfriNIC address blocks: 7237 AfriNIC Region origin ASes present in the Internet Routing Table: 1114 AfriNIC Prefixes per ASN: 18.27 AfriNIC Region origin ASes announcing only one prefix: 363 AfriNIC Region transit ASes present in the Internet Routing Table: 223 Average AfriNIC Region AS path length visible: 4.7 Max AfriNIC Region AS path length visible: 21 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 391 Number of AfriNIC addresses announced to Internet: 95656192 Equivalent to 5 /8s, 179 /16s and 153 /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 5429 4195 92 ERX-CERNET-BKB China Education and Rese 7545 3752 406 407 TPG-INTERNET-AP TPG Telecom Limited, AU 4766 2878 11132 769 KIXS-AS-KR Korea Telecom, KR 9829 2770 1499 539 BSNL-NIB National Internet Backbone, IN 17974 2767 934 77 TELKOMNET-AS2-AP PT Telekomunikasi Indo 9394 2635 4923 27 CTTNET China TieTong Telecommunications 7552 2615 1160 65 VIETEL-AS-AP Viettel Group, VN 45899 2580 1550 154 VNPT-AS-VN VNPT Corp, VN 9808 2166 8699 32 CMNET-GD Guangdong Mobile Communication 4755 2088 417 209 TATACOMM-AS TATA Communications formerl 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 3385 1323 86 SHAW - Shaw Communications Inc., CA 22773 3265 2951 144 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi 18566 2167 405 108 MEGAPATH5-US - MegaPath Corporation, US 20115 2081 2367 437 CHARTER-NET-HKY-NC - Charter Communicat 16509 1999 4162 575 AMAZON-02 - Amazon.com, Inc., US 6389 1938 3671 39 BELLSOUTH-NET-BLK - BellSouth.net Inc., 209 1912 5059 619 CENTURYLINK-US-LEGACY-QWEST - Qwest Com 30036 1894 334 214 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom 11492 1735 231 557 CABLEONE - CABLE ONE, INC., US 7018 1681 20183 1248 ATT-INTERNET4 - AT&T Services, Inc., US 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 3520 187 21 ALJAWWALSTC-AS, SA 20940 2837 832 2057 AKAMAI-ASN1, US 8551 2232 378 43 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12479 2211 1123 272 UNI2-AS, ES 12389 2120 1859 701 ROSTELECOM-AS, RU 34984 2002 332 474 TELLCOM-AS, TR 9121 1936 1691 17 TTNET, TR 13188 1605 100 46 TRIOLAN, UA 8402 1281 544 14 CORBINA-AS OJSC "Vimpelcom", RU 6849 1240 355 21 UKRTELNET, UA 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 4143 3386 590 Uninet S.A. de C.V., MX 10620 3595 542 237 Telmex Colombia S.A., CO 11830 2636 370 66 Instituto Costarricense de Electricidad 6503 1629 437 53 Axtel, S.A.B. de C.V., MX 7303 1505 1025 192 Telecom Argentina S.A., AR 6147 1030 377 27 Telefonica del Peru S.A.A., PE 28573 1016 2242 191 CLARO S.A., BR 3816 1014 509 114 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 11172 920 126 85 Alestra, S. de R.L. de C.V., MX 18881 906 1067 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 1192 398 50 LINKdotNET-AS, EG 37611 789 91 8 Afrihost, ZA 36903 739 371 135 MT-MPLS, MA 36992 672 1380 37 ETISALAT-MISR, EG 8452 565 1730 18 TE-AS TE-AS, EG 24835 478 786 17 RAYA-AS, EG 29571 462 68 12 ORANGE-COTE-IVOIRE, CI 37492 450 368 78 ORANGE-, TN 37342 360 32 1 MOVITEL, MZ 15399 355 35 7 WANANCHI-, KE 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 5429 4195 92 ERX-CERNET-BKB China Education and Rese 8151 4143 3386 590 Uninet S.A. de C.V., MX 7545 3752 406 407 TPG-INTERNET-AP TPG Telecom Limited, AU 10620 3595 542 237 Telmex Colombia S.A., CO 39891 3520 187 21 ALJAWWALSTC-AS, SA 6327 3385 1323 86 SHAW - Shaw Communications Inc., CA 22773 3265 2951 144 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi 4766 2878 11132 769 KIXS-AS-KR Korea Telecom, KR 20940 2837 832 2057 AKAMAI-ASN1, US 9829 2770 1499 539 BSNL-NIB National Internet Backbone, IN Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 8151 4143 3553 Uninet S.A. de C.V., MX 39891 3520 3499 ALJAWWALSTC-AS, SA 10620 3595 3358 Telmex Colombia S.A., CO 7545 3752 3345 TPG-INTERNET-AP TPG Telecom Limited, AU 6327 3385 3299 SHAW - Shaw Communications Inc., CA 22773 3265 3121 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 17974 2767 2690 TELKOMNET-AS2-AP PT Telekomunikasi Indonesia, I 9394 2635 2608 CTTNET China TieTong Telecommunications Corpora 11830 2636 2570 Instituto Costarricense de Electricidad y Telec 7552 2615 2550 VIETEL-AS-AP Viettel Group, VN Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 65249 PRIVATE 5.42.234.0/23 35753 ITC ITC AS number, SA 65249 PRIVATE 5.42.234.0/24 35753 ITC ITC AS number, SA 65456 PRIVATE 31.171.126.0/23 199311 AZRT-LX Local Internet Exchang 65001 PRIVATE 46.237.40.0/21 13118 ASN-YARTELECOM PJSC Rostelecom 64513 PRIVATE 62.150.101.0/24 9155 QNET Kuwait, KW 419333 UNALLOCATED 84.17.91.0/24 41933 IPRAGAZ-AS Istanbul/ TURKEY, T 65024 PRIVATE 87.103.234.0/24 39407 CHITATELECOM-AS, RU 65000 PRIVATE 95.179.2.0/24 65001 -Private Use AS-, ZZ 65000 PRIVATE 95.179.3.0/24 65001 -Private Use AS-, ZZ 65000 PRIVATE 95.179.69.0/24 65001 -Private Use AS-, ZZ 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 23.159.192.0/24 54726 AET - AET Hosting Solutions, Inc., US 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 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 /9:12 /10:37 /11:100 /12:290 /13:563 /14:1092 /15:1895 /16:13330 /17:7774 /18:13638 /19:25295 /20:38825 /21:44967 /22:83912 /23:67887 /24:381470 /25:840 /26:605 /27:658 /28:36 /29:20 /30:18 /31:4 /32:60 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6327 3177 3385 SHAW - Shaw Communications Inc., CA 39891 2946 3520 ALJAWWALSTC-AS, SA 22773 2528 3265 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 18566 2061 2167 MEGAPATH5-US - MegaPath Corporation, US 11830 1981 2636 Instituto Costarricense de Electricidad y Telec 8551 1696 2232 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 30036 1654 1894 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi 10620 1587 3595 Telmex Colombia S.A., CO 11492 1516 1735 CABLEONE - CABLE ONE, INC., US 9121 1420 1936 TTNET, TR Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1575 2:846 4:18 5:2649 6:58 8:1094 9:1 12:1849 13:198 14:1757 15:26 16:3 17:184 18:65 20:49 21:3 23:2538 24:2057 25:2 27:2357 31:1954 32:88 35:23 36:486 37:2538 38:1451 39:243 40:100 41:3065 42:539 43:1952 44:93 45:3618 46:3035 47:197 49:1378 50:1039 51:47 52:941 54:350 55:4 56:7 57:42 58:1584 59:1013 60:388 61:2053 62:1820 63:1813 64:4693 65:2228 66:4493 67:2350 68:1175 69:3193 70:1135 71:560 72:2084 74:2665 75:398 76:420 77:1546 78:1642 79:1683 80:1480 81:1401 82:1056 83:786 84:994 85:1975 86:555 87:1233 88:905 89:2335 90:178 91:6280 92:1163 93:2373 94:2392 95:2719 96:645 97:358 98:928 99:114 100:79 101:1513 102:16 103:17026 104:3272 105:210 106:523 107:1806 108:704 109:2960 110:1574 111:1775 112:1294 113:1388 114:1113 115:1583 116:1644 117:1700 118:2207 119:1683 120:957 121:1050 122:2465 123:1803 124:1458 125:1838 128:1020 129:598 130:440 131:1638 132:597 133:194 134:1003 135:227 136:437 137:474 138:1958 139:557 140:401 141:682 142:778 143:989 144:799 145:446 146:1161 147:745 148:1503 149:710 150:735 151:981 152:763 153:310 154:979 155:752 156:818 157:774 158:613 159:1610 160:858 161:728 162:2557 163:521 164:1223 165:1359 166:395 167:1405 168:3126 169:797 170:3663 171:407 172:1017 173:1903 174:878 175:762 176:1879 177:3912 178:2416 179:1173 180:2233 181:2128 182:2446 183:1102 184:906 185:12330 186:3441 187:2343 188:2628 189:2007 190:8116 191:1286 192:9767 193:5875 194:4772 195:3989 196:2352 197:1435 198:5540 199:5911 200:7295 201:4877 202:10394 203:9984 204:4533 205:2850 206:3054 207:3111 208:4018 209:3921 210:4019 211:2143 212:2962 213:2617 214:895 215:62 216:5831 217:2125 218:901 219:624 220:1734 221:995 222:1050 223:1231 End of report

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improving signal to noise ratio from centralized network syslogs
by Joe Maimon 31 Jan '18

31 Jan '18

Hey All, Centralized logging is a good thing. However, what happens is that every repetitive, annoying but not (usually) important thing fills up the log with reams of what you are not looking for. Networks are a noisy place and silencing every logged condition is impractical and sometimes undesirable. What I am interested in is an automated zoom-in zoom-out tool to mask the repetition of "normal" events and allow the unusual to stand out. Add to that an ability to identify gaps in the background noise. (The dog that didnt bark) What I am not interested in are solutions based upon preconfigured filters and definitions and built in analysis for supported (prepopulated definitions) platforms, this is all about pattern mining/masking and should be self discoverable. Ideally a command tool to generate static versions of the analysis coupled with a web platform (with zoom +- buttons) for realtime. I made a crude run of it with SLCT, using its generated patterns to grep -v, and that in and of itself was useful, but needs a bit of work. Also, its not quite real time. Any ideas would be greatly appreciated. Joe

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list blockchain
by Randy Bush 29 Jan '18

29 Jan '18

why is no one exploring converting this mailing list to a blockchain? major missed opportunity. </dripping sarcasm> randy

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