[9730] in North American Network Operators' Group
Re: 10.0.0
daemon@ATHENA.MIT.EDU (Dave O'Shea)
Sat May 31 01:06:29 1997
From: "Dave O'Shea" <doshea@mail.wiltel.net>
To: "Janet Pippin" <jdp@cyberramp.net>, <nanog@merit.edu>
Cc: "Larry Rosenman-CyberRamp System Administration" <ler@cyberramp.net>
Date: Fri, 30 May 1997 23:43:08 -0500
I've noted several providers, including a couple of better-known ones,
using RFC1597 addresses internally. While not a Really Optimal Solution, it
does work, and if you find yourself with only a couple of class C's to work
with.. I'd probably rather preserve them for my customers, and go with
whatever I had to internally, as long as packets still got from A to B.
The only services that should be affected by the use of such "bogus"
addresses will be traceroute and any routing information passed by the
device.
Much more interesting is when you have to connect to several different
customers, many of whom have chosen 10/8, 172.16/16, or 192.168.1/24 as
their core network addresses.
Looks like Sierra is a customer of Phoenix Fiberlink, who is likely
dual-homed, since he's got a Sprint netblock transiting UUnet.
Hope that helps.
----------
> From: Janet Pippin <jdp@cyberramp.net>
> To: nanog@merit.edu
> Cc: Larry Rosenman-CyberRamp System Administration <ler@cyberramp.net>
> Subject: 10.0.0
> Date: Friday, May 30, 1997 10:53 PM
>
> ALL:
> Upon trying to discover an abuse site's network location, I
> happened upon this:
>
> Now, first it goes to sierra.. Then right after the trace finishes,
> I ran the second one..
>
> traceroute to ns1.sierra.net (207.135.224.247), 30 hops max, 40 byte
packets
> 1 cisco.cyberramp.net (207.158.64.1) 2 ms 1 ms 1 ms
> 2 166.48.80.9 (166.48.80.9) 6 ms 8 ms 13 ms
> 3 core3.Dallas.mci.net (204.70.4.13) 5 ms 7 ms 16 ms
> 4 uunet-hssi.Dallas.mci.net (206.157.77.130) 26 ms 7 ms 56 ms
> 5 Fddi0-0.CR1.DFW1.Alter.Net (137.39.37.35) 103 ms 13 ms 15 ms
> 6 108.Hssi5-0.CR1.SFO1.Alter.Net (137.39.70.221) 135 ms 312 ms 348
ms
> 7 133.Hssi4-0.GW1.SLT1.Alter.Net (137.39.68.10) 104 ms 121 ms 122 ms
> 8 pfi-gw.customer.ALTER.NET (137.39.167.18) 108 ms 171 ms 106 ms
> 9 207.49.13.50 (207.49.13.50) 114 ms 117 ms 112 ms
> 10 207.14.235.22 (207.14.235.22) 112 ms 116 ms 113 ms
> 11 10.0.0.2 (10.0.0.2) 116 ms 108 ms 114 ms
> 12 rock.sierra.net (207.135.224.247) 116 ms 112 ms 113 ms
>
> jdp@mailhost 18 ~ > wi 10.0.0
> IANA (RESERVED-6)
>
> Netname: RESERVED-10
> Netnumber: 10.0.0.0
>
> hrmm... and the second one:
>
> jdp@mailhost 17 ~ > t ns1.sierra.net
> traceroute to ns1.sierra.net (198.60.22.2), 30 hops max, 40 byte packets
> 1 cisco.cyberramp.net (207.158.64.1) 2 ms 1 ms 1 ms
> 2 166.48.80.9 (166.48.80.9) 29 ms * 5 ms
> 3 bordercore1-loopback.Denver.mci.net (166.48.92.1) 210 ms 252 ms
281 ms
> 4 electric-light.Denver.mci.net (166.48.93.254) 274 ms 273 ms 260 ms
> 5 F0-0.slkcib01.eli.net (207.0.56.18) 59 ms 59 ms 62 ms
> 6 XMISSION-DOM.slkcib01.eli.net (207.49.20.86) 64 ms 67 ms 69 ms
> 7 xmission.xmission.com (198.60.22.2) 60 ms * 88 ms
> jdp@mailhost 18 ~ >
>
> enlighten me, someone... :(
>
> -janet
>
>
> Janet Pippin * CyberRamp Internet Services
> Network Administrator *** 11350 Hillguard Road
> jdp@cyberramp.net * Dallas, Texas 75243-8311
> http://www.cyberramp.net * (214) 340-2020 (817) 226-2020
