New on RIPE Labs: The Curious Case of 128.0/16
Henry Yen
henry at AegisInfoSys.com
Tue Dec 6 19:05:48 UTC 2011
On Tue, Dec 06, 2011 at 09:38:31AM -0600, Chris Adams wrote:
> Using RIPE's traceroute web interface, I can see that Sprint is
> filtering 128.0.0.0/16:
> I believe that Sprint is using Cisco, not Juniper. This is either a
> manual filter or there is another (unidentified) issue with some Cisco
> configurations.
I've been getting spam from NTT for several days in that range; a Sprint-based
traceroute:
2 sl-gw28-nyc-15-1-3-28-ts0.sprintlink.net (160.81.237.61) 10.880 ms 10.604 ms 9.359 ms
3 sl-crs1-nyc-0-6-3-0.sprintlink.net (144.232.3.188) 10.345 ms 10.559 ms
11.802 ms
4 144.232.4.87 (144.232.4.87) 9.178 ms 7.928 ms 144.232.4.91 (144.232.4.91) 9.304 ms
5 xe-0-2-0-2.r06.nycmny01.us.bb.gin.ntt.net (129.250.8.73) 8.841 ms 9.977 ms 7.947 ms
6 ae-2.r22.nycmny01.us.bb.gin.ntt.net (129.250.4.174) 11.497 ms 10.610 ms
11.682 ms
7 ae-4.r21.sttlwa01.us.bb.gin.ntt.net (129.250.2.51) 85.541 ms 86.744 ms
84.994 ms
8 ae-0.r20.sttlwa01.us.bb.gin.ntt.net (129.250.2.53) 88.498 ms 87.313 ms
88.387 ms
9 ae-3.r20.snjsca04.us.bb.gin.ntt.net (129.250.3.53) 95.862 ms 96.692 ms
96.558 ms
10 ae-2.r20.mlpsca01.us.bb.gin.ntt.net (129.250.5.6) 97.193 ms 96.742 ms 97.046 ms
11 * * *
12 ae-0.r01.mlpsca01.us.wh.verio.net (129.250.26.170) 98.053 ms 97.402 ms
95.332 ms
13 ge-26.a0410i.mlpsca01.us.wh.verio.net (204.202.1.226) 99.151 ms 99.001 ms 96.926 ms
14 ca1-lam00092.vwh.net (192.217.122.217) 95.274 ms 97.104 ms 96.247 ms
15 arnmarkt.org (128.121.86.33) 90.872 ms 91.109 ms 91.995 ms
--
Henry Yen Aegis Information Systems, Inc.
Senior Systems Programmer Hicksville, New York
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