[AusNOG] massive amount of icmpv6 traffic compared to normal

Mark Andrews marka at isc.org
Wed Aug 7 08:02:59 EST 2013


Did anyone else see a massive amount of directed icmpv6 echo traffic
around 7 am this morning?  I happened to have a tcpdump running in
a window overnight with a decent history buffer.  The counts cover
around 20 minutes of externally originated icmpv6 echo request
traffic.  It looks like these were all directed at addresses that
have generated traffic in the past.

  15 2001:388:1:3806::cb0d:a10d		[AARNet]
  25 2001:388:1:5062::cb05:4c2d		[AARNet]
  73 2001:388:30d0:20::cb0d:a1e5	[AARNet]
  33 2001:4478:1820:101::cbd9:1797	[iinet]
 327 2001:4478:1820:101::cbd9:17a4	[iinet]
 368 2001:4478:2220:100::cbce:5434	[iinet]
  90 2001:4478:4120::3ba7:1214		[iinet]
 365 2001:44b8:2020:8::3ba7:911e	[iinet/internode]
  32 2001:44b8:3070:5::9665:c344	[iinet/internode]
 365 2001:44b8:3070:5::9665:c35d	[iinet/internode]
  32 2001:c78:203:1::d209:5804		[AAPT]
  18 2001:c78:203:2::d20b:8e29		[AAPT]
 370 2401:1c00:3000::cba1:a45		[nextgen]
 357 2406:3c00:6000:2::cb09:b945	[CITEC]
   8 2600:1402:a::174d:cf3b		[AKAMAI]
   9 2600:1402:a::b833:223f		[AKAMAI]
   9 2600:1406:19::b833:783f		[AKAMAI]
   6 2600:140b:12::48f6:bed2		[AKAMAI]
   9 2600:1415:1::3cfe:ba26		[AKAMAI]
   1 2600:1415:1::b854:df45		[AKAMAI]
   1 2600:1415:1::b854:df81		[AKAMAI]
  24 2600:1415:1::b854:df91		[AKAMAI]
  18 2600:1415:7::173e:e021		[AKAMAI]
   6 2600:1415:7::173e:e02e		[AKAMAI]
  18 2600:1415:8::173e:9d0f		[AKAMAI]
   6 2600:1417:9::b854:efb7		[AKAMAI]

The requests were spread out pretty evenly over
the target addresses.  The last one is the HE
tunnel endpoint.

  66 2001:470:1f00:820:1957:4b69:2ac6:e9f:
  60 2001:470:1f00:820:1c21:6ba2:fb2b:9bfd:
  62 2001:470:1f00:820:1cf0:cf26:5e6:d8db:
  62 2001:470:1f00:820:1d24:1a12:b873:4a42:
  66 2001:470:1f00:820:1dc7:7cf5:9186:822:
  63 2001:470:1f00:820:1e0:16bb:8c30:6e72:
  62 2001:470:1f00:820:28c9:9f76:1511:f655:
  61 2001:470:1f00:820:294e:fc16:cac0:875e:
  62 2001:470:1f00:820:395b:ff7c:3c9c:b937:
  62 2001:470:1f00:820:3d3a:685e:6df2:5498:
  63 2001:470:1f00:820:4445:250:5814:6cdb:
  61 2001:470:1f00:820:50f4:de9:cd26:2516:
  66 2001:470:1f00:820:54f8:696b:5031:ea34:
  60 2001:470:1f00:820:59c9:c923:816b:8b7d:
  61 2001:470:1f00:820:6113:2702:9988:340b:
  64 2001:470:1f00:820:6533:8688:73a5:fff8:
  62 2001:470:1f00:820:6de7:3deb:8b0f:ff40:
  62 2001:470:1f00:820:75af:c5c0:a467:3e92:
  69 2001:470:1f00:820:7968:d8e:79de:8f92:
  61 2001:470:1f00:820:9453:af6f:87e1:74d8:
  59 2001:470:1f00:820:9c03:a1e:80ea:5bb8:
  66 2001:470:1f00:820:9d39:9440:eca6:b46c:
  62 2001:470:1f00:820:9d79:8e43:6952:e195:
 127 2001:470:1f00:820:a0d0:3ba5:749f:5208:
  62 2001:470:1f00:820:a46a:cf6d:a101:9c8f:
  63 2001:470:1f00:820:a5b1:d071:6eb6:688e:
  65 2001:470:1f00:820:a5e4:f68e:4e76:bad3:
  62 2001:470:1f00:820:adcd:8ff6:1fc1:6f54:
 114 2001:470:1f00:820:b5a3:6e0c:d14f:4bca:
  62 2001:470:1f00:820:b943:3351:3ec7:1be7:
  60 2001:470:1f00:820:c52:d7b2:88e:beba:
  61 2001:470:1f00:820:c959:c2e2:207e:2165:
  63 2001:470:1f00:820:d125:e343:cbb0:29f:
  66 2001:470:1f00:820:e90c:7e26:cd6:b1c1:
  65 2001:470:1f00:820:e9a6:b550:4082:7072:
  61 2001:470:1f00:820:ecfe:8286:8258:dcb3:
  63 2001:470:1f00:820:fc06:7033:750a:a307:
  62 2001:470:1f00:820:fce3:ec69:66eb:18fc:
  87 2001:470:1f00:ffff::5a1:

-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE:	+61 2 9871 4742		         INTERNET: marka at isc.org



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