nanog mailing list archives
Re: Maybe I'm misreading this but...
From: Chris Cappuccio <chris () empnet com>
Date: Wed, 14 Oct 1998 15:41:56 -0700 (PDT)
On Wed, 14 Oct 1998, Barry Shein wrote: | | The following traceroute seems to indicate, according to ARIN, that | someone is running routers for spammers in the IANA Reserved netspace? | You are mis-reading this because the 172 addresses are not routeable. In a traceroute, a router can say that it is any IP address it likes, but that does not mean that you can traceroute to 172.x.y.z... It just means that the routers are most likely using those IP addresses for private interconnect | First a traceroute: | | >world% traceroute www.libidomax.com | >traceroute to www.libidomax.com (209.149.111.17), 30 hops max, 40 byte packets | > 1 Boston-STD-F.std.com (199.172.62.80) 17 ms 4 ms 4 ms | > 2 553.Hssi2-0.GW2.BOS1.ALTER.NET (157.130.10.129) 59 ms 107 ms 69 ms | > 3 124.ATM3-0.XR1.BOS1.ALTER.NET (146.188.176.250) 77 ms 54 ms 37 ms | > 4 191.ATM2-0.TR1.NYC1.ALTER.NET (146.188.179.82) 38 ms 51 ms 51 ms | > 5 104.ATM7-0.TR1.ATL1.ALTER.NET (146.188.136.57) 80 ms 87 ms 133 ms | > 6 100.ATM7-0.XR1.ATL1.ALTER.NET (146.188.232.85) 91 ms 141 ms 63 ms | > 7 195.ATM10-0-0.GW1.JAX1.ALTER.NET (146.188.232.169) 53 ms 81 ms 107 ms | > 8 bs-jackson-gw.customer.alter.net (157.130.65.226) 107 ms 132 ms 96 ms | > 9 172.17.80.46 (172.17.80.46) 59 ms 53 ms 44 ms | >10 172.21.210.18 (172.21.210.18) 122 ms 96 ms 49 ms | >11 209.149.111.17 (209.149.111.17) 53 ms (ttl=118!) 58 ms (ttl=118!) 150 ms (ttl=118!) | | | | Ok, now let's look up the 172.* addresses: | | >world% arin 172.17.80.46 | >IANA (IANA-BBLK-RESERVED) | > Internet Assigned Numbers Authority | > Information Sciences Institute | > University of Southern California | > 4676 Admiralty Way, Suite 1001 | > Marina del Rey, CA 90292-6695 | > | > Netname: IANA-BBLK-RESERVED | > Netblock: 172.16.0.0 - 172.31.0.0 | > | > Coordinator: | > Internet Assigned Numbers Authority (IANA-ARIN) iana () iana org | > (310) 822-1511 | > | > Domain System inverse mapping provided by: | > | > BLACKHOLE.ISI.EDU 128.9.64.26 | > NS2.INTERNIC.NET 198.41.0.11 | | and I get the same result of course for the other 172 address so I'll | save you the redundant cut and paste. | | What's going on here? | | -- | -Barry Shein | | Software Tool & Die | bzs () world std com | http://www.world.com | Purveyors to the Trade | Voice: 617-739-0202 | Login: 617-739-WRLD | The World | Public Access Internet | Since 1989 *oo* | --- "Microsoft is to quality software what McDonalds is to gourmet cooking"
Current thread:
- Re: Maybe I'm misreading this but..., (continued)
- Re: Maybe I'm misreading this but... I Am Not An Isp (Oct 17)
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- Re: Maybe I'm misreading this but... I Am Not An Isp (Oct 16)
- Re: Maybe I'm misreading this but... Michael Shields (Oct 16)
- Re: Maybe I'm misreading this but... Marc Slemko (Oct 16)
- Re: Maybe I'm misreading this but... I Am Not An Isp (Oct 16)
- Re: Maybe I'm misreading this but... Marc Slemko (Oct 17)
- Re: Maybe I'm misreading this but... Michael Shields (Oct 17)
- Re: Maybe I'm misreading this but... I Am Not An Isp (Oct 17)
- Re: Maybe I'm misreading this but... Patrick Greenwell (Oct 18)
- Re: Maybe I'm misreading this but... Marc Slemko (Oct 18)
- Re: Maybe I'm misreading this but... Marc Slemko (Oct 14)
- Re: Maybe I'm misreading this but... Tim Wolfe (Oct 14)
- Re: Maybe I'm misreading this but... I Am Not An Isp (Oct 16)
- Re: Maybe I'm misreading this but... Jim Shankland (Oct 16)
- Re: Maybe I'm misreading this but... Phillip Vandry (Oct 16)
- Re: Maybe I'm misreading this but... I Am Not An Isp (Oct 16)