Date: Thu, 19 Dec 2002 13:39:33 -0600 From: Eric Anderson <anderson@centtech.com> To: "Gary W. Swearingen" <swear@attbi.com> Cc: "Jeffrey P.Bogert" <jbogert@mitre.org>, freebsd-doc@freebsd.org Subject: Re: FreeBSD Handbook Message-ID: <3E022075.4040703@centtech.com> References: <3E01FA5E.87B6FC46@mitre.org> <r1znr1g5x0.nr1@localhost.localdomain>
next in thread | previous in thread | raw e-mail | index | archive | help
Gary W. Swearingen wrote: > "Jeffrey P.Bogert" <jbogert@mitre.org> writes: > > >>2) on page 53 in the section "Netmask" >>the Class C block should be 192.168.0.0-192.168.0.255 instead of >>192.168.0.0-192.168.255.255 > > > Many understand this better than I, but let me flag this for review. > > My copy says: > > Netmask > > The address block being used for this local area network is a Class > C block (192.168.0.0 - 192.168.255.255). The default netmask is for > a Class C network (255.255.255.0). > > All of which is correct, methinks. That 192.168.0.0 - 192.168.255.255 > is the Class C block of addresses reserved for private use on a LAN such > as is being configured here. In these sub-netting days, the term > "block" needn't be limited to a "natural" Class C network of 256 hosts. A class C has 256 IP's in it - the above is incorrect. 192.168.0.0 - 192.168.255.255 would be the size of a class B network. If 192.168.0.0 - 192.168.255.255 were a class c, then a class b would have to be 192.0.0.0 - 192.255.255.255, and a class a would be 0.0.0.0 - 255.255.255.255, which would be all IP's on the ipv4 internet, which it is not. Eric -- ------------------------------------------------------------------ Eric Anderson Systems Administrator Centaur Technology Beware the fury of a patient man. ------------------------------------------------------------------ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-doc" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3E022075.4040703>