-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Sun, 17 Nov 2002 14:33:54 -0500, Michael H. Warfield wrote:
> > > > Actually that is a class B address. > > > > > > > > The first octet of a class A is 1-126 (127 reserved for loop > > > > back) > > > > class B is 128-191 > > > > class C is 192-223 > > > > > > > > since 172 is between the ranges of 128-191 that would make it > > > > class B > > > > > > > > Class B subnet 255.255.0.0 or /16 > > > > > > The step from Class B to /16 is beyond me. If memory serves > > > correctly, the Class B subnet in RFC1918 is 172.16.0.0/12 > > > which would be netmask 255.240.0.0. > > > I want to know how do you know the the netmask is 255.240.0.0 ? > > He doesn't. He's wrong. An old Class B was a /16 by > definition. > What he's quoting is the definition for the 16 Class B addresses which > were specified for private address space usage. The formed a /12 > band. He has not answered the original question and has provided > erronious information about the old Class B addresses based on a > missreading an missunderstanding of the Private Address Space RFC > 1918. Wow, what a nice way of replying to a message where I explicitly wrote "if memory serves correctly". ;) Consider helping more often instead of lurking in the background until someone makes a small mistake. It's so easy to dig out RFC1918 and look up the section which mentions the 16 contiguous class B network numbers 172.16.0.0 - - 172.31.255.255 in Class B (128.0.0.0 - 191.255.255.255). Bundled together they still don't have a netmask of 255.255.0.0, but 255.240.0.0. Btw, you didn't answer the question either. It was: > What is the subnet-mask of IP "172.16.0.1" - "172.16.0.253" Which would be impossible, because it is missing 172.16.0.254. Leaving that minor detail aside, the answer would be a netmask of 255.255.255.0, because actually it is an 8-bit subnet of class B. - -- -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) iD8DBQE92ADJ0iMVcrivHFQRAmQjAJ9ppcFE/lI3oC7lO7/8gLVQMK4P7ACfbUvo lmWpOFcI476z150k8iGexsw= =tlWj -----END PGP SIGNATURE----- -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe https://listman.redhat.com/mailman/listinfo/redhat-list
