No, the restricted ranges are only Class A: 10.0.0.0 to 10.255.255.255 Class b: 172.16.0.0 to 172.31.255.255 Class C: 192.168.0.0 to 192.168.255.255 Class D: for multicast 224.0.0.0 to 239.255.255.255 Class E: reserved for experimental use 224.0.0.0 - 239.255.255.255 And the APIPA ... Automatic private ip address: 169.254.0.0 to 169.254.255.255 And then there's obviously specific IP's like 0.0.0.0, 127.0.0.1, 255.255.255.255, and so forth. Actually, note that 0.0.0.0 to 0.255.255.255 isn't allocated And also note that 127.0.0.0 to 127.255.255.255 is reserved for loop back. Not just 127.0.0.1. Take care, Sina -----Original Message----- From: speakup-bounces@xxxxxxxxxxxxxx [mailto:speakup-bounces at braille.uwo.ca] On Behalf Of Charles Hallenbeck Sent: Friday, July 14, 2006 12:04 PM To: Speakup is a screen review system for Linux. Subject: private vs. public IP addresses -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I was intrigued by the discussion of Tyler's IP address issue. I know about the 10.X range, and the 192.168.X range, and I seem to recall that there are other restricted ranges. Is one of them a 72.X range? I am having a bit of an issue right now with a user whose ISP hands him a dynamic address starting with 72, and wonder if it might be a restricted IP address. - -- The Moon is Waning Gibbous (83% of Full) Get downloads from http://www.mhcable.com/~chuckh and remember, INFORMATION WANTS TO BE FREE! -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (GNU/Linux) iD8DBQFEt8BjXnuiIOyDVQURAgH4AKCAjsndnAvlAs3Q9PW3uu5km+7MMgCcDtkx eQxx8FryU0wd84XkGQ75rW0= =U8fM -----END PGP SIGNATURE----- _______________________________________________ Speakup mailing list Speakup at braille.uwo.ca http://speech.braille.uwo.ca/mailman/listinfo/speakup