From: Bradley Dunn <bradley@dunn.org>

...

I do not know of any organization that would allow internal network information to be made available to an outside party. I think this ranks pretty high up on any security policy. It would probably not even be possible on correctly secured network. And on one that wasn't properly secured, you would probably hear lots of complaints about scanning or searching that network.

If the internal network is that "top secret" it should be behind a firewall and using RFC 1918 space.

Yes. Last year, when I was scanning the Class A's to determine number of actually connected hosts, my service provider kept getting complaints from so-called security folks at the affected companies. Oh, and I found a lot of routing problems (loops, etc) which are really aggravated when you hit them 255 times (each address in the range, all of them looping).... WSimpson@UMich.edu Key fingerprint = 17 40 5E 67 15 6F 31 26 DD 0D B9 9B 6A 15 2C 32 BSimpson@MorningStar.com Key fingerprint = 2E 07 23 03 C5 62 70 D3 59 B1 4F 5E 1D C2 C1 A2