Date: Wed, 17 Dec 1997 17:42:39 -0600 (CST) From: "Matthew D. Fuller" <fullermd@futuresouth.com> To: sthaug@nethelp.no Cc: benedict@echonyc.com Subject: Re: ifconfig reports bogus netmask Message-ID: <Pine.BSF.3.96.971217173351.28812A-100000@shell.futuresouth.com> In-Reply-To: <26766.882398347@verdi.nethelp.no>
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On Wed, 17 Dec 1997 sthaug@nethelp.no wrote: > > This is only a problem if you want everyone to see your network topology. > > But why would someone need to traceroute you from another AS? > > - I traceroute to other ASes every day, and I find it extremely useful > to see for instance where a path stops. > > - traceroute is not the only use for ICMP. Finding private adresses in traceroutes IS annoying. For instance, from my box here at home, 1 anp-as10.erols.com (10.65.34.20) 229.273 ms 280.448 ms 199.593 ms 2 10.65.34.1 (10.65.34.1) 219.927 ms 271.672 ms 208.069 ms 3 10.2.4.50 (10.2.4.50) 277.771 ms 257.309 ms 248.005 ms 4 10.2.2.61 (10.2.2.61) 257.946 ms 228.212 ms 221.258 ms 5 207.124.117.209 (207.124.117.209) 199.419 ms 227.504 ms 177.854 ms 6 dcb-7513-2-h8-0.cwi.net (207.124.105.77) 267.632 ms 317.036 ms So, coming from the other direction, 9 blb-7513-1-h3-0.cwix.net (207.124.105.78) 61.949 ms 82.938 ms 10 207.124.117.210 (207.124.117.210) 97.334 ms * * 11 * * * 12 * * * 13 * * * 14 * anp-as10s19.erols.com (207.172.150.146) 274.060 ms 270.059 ms Now, if that was happening with the private adresses at the end AWAY from me, it really wouldn't help me figure out where the problem is. From the other end, I might well assume the problem would be in cwix.net, instead of erols.com where all those *'s really are. Not too helpful in sending complaints/notices. I'm going to exercise a little discretion here; I think this particular line has reached the end of it's useful life on -hackers. *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* | FreeBSD; the way computers were meant to be | * "The only reason I'm burning my candle at both ends, is * | that I haven't figured out how to light the middle yet."| * fullermd@futuresouth.com :-} MAtthew Fuller * | http://keystone.westminster.edu/~fullermd | *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
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