From owner-freebsd-chat Thu May 27 18:58:33 1999 Delivered-To: freebsd-chat@freebsd.org Received: from beelzebubba.sysabend.org (beelzebubba.sysabend.org [208.243.107.6]) by hub.freebsd.org (Postfix) with ESMTP id 4834614FA9 for ; Thu, 27 May 1999 18:58:29 -0700 (PDT) (envelope-from ragnar@sysabend.org) Received: by beelzebubba.sysabend.org (Postfix, from userid 1004) id 68DA84035; Thu, 27 May 1999 21:58:42 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by beelzebubba.sysabend.org (Postfix) with SMTP id 5DC8F9A8E; Thu, 27 May 1999 21:58:42 -0400 (EDT) Date: Thu, 27 May 1999 21:58:42 -0400 (EDT) From: Jamie Bowden To: Dan Langille Cc: Jasper O'Malley , freebsd-chat@FreeBSD.ORG Subject: Re: Mickey Mouse networking... In-Reply-To: <199905271958.PAA01682@gatekeeper.itribe.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-chat@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Fri, 28 May 1999, Dan Langille wrote: :On 27 May 99, at 13:41, Jasper O'Malley wrote: :> Another reason Microsoft sucks...whilst attempting to set an IP address on :> a NIC in a Win98 box to 10.4.100.255/255.255.0.0, I encountered the error :> message: :> :> "The specified IP address is not valid." :> :> I say we take a collection to send the Microsoft programmers to a class on :> IP subnetting. : :OK. I'll be the lamb to the slaughter. : :I understood that ip addresses ending in either 0 or 255 were not to be :used. They are both used as broadcast addresses. Is that correct? : :If the above is correct, why is the IP address supplied above correct? The first address in a subnet (any subnet, from a /8 to a /30) is the network address. In 4.2 BSD it was also the braodcast address. The rest of the world, including BSD 4.3 and later use the last address in a subnet as the broadcast address. I don't think windows supports 4.2 BSD compatibility, so the above error is perfectly valid. Jamie Bowden -- If we've got to fight over grep, sign me up. But boggle can go. -Ted Faber (on Hasbro's request for removal of /usr/games/boggle) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message