Most ISP's, if not all, null route 1.0.0.0/8 therefore you shouldn't encounter any problems using it in a private network. -----Original Message----- From: Michael Butler [mailto:imb@protected-networks.net] Sent: Monday, February 02, 2009 5:59 PM To: trey@kingfisherops.com Cc: nanog@nanog.org Subject: Re: Private use of non-RFC1918 IP space -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Trey Darley wrote:
Some colleagues and I are running into a bit of a problem. We've been using RFC 1918 Class A space but due to the way subnets have been allocated we are pondering the use of public IP space. As the network in question is strictly closed I don't anticipate any problems with this as the addresses would be unambiguous within our environment. I'm curious if anyone else is doing this.
This is a *VERY BAD IDEA* - why not take the hit now rather than exponentiate the problem and, in so doing, make it nearly impossible to reverse later? Michael -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (FreeBSD) iEYEARECAAYFAkmHGCgACgkQQv9rrgRC1JLWrACfTxrfxz/6DFCCByldBqMv/MjL ssYAn3Se0GRA+s3Szn9dMUN8c7AlQzj/ =FZWG -----END PGP SIGNATURE-----