Date: Thu, 24 Sep 1998 15:08:46 -0700 From: Ulf Zimmermann <ulf@Alameda.net> To: Bill Vermillion <bill@bilver.magicnet.net>, freebsd-isp@FreeBSD.ORG Subject: Re: Routing problem Message-ID: <19980924150846.C24890@Alameda.net> In-Reply-To: <199809240148.VAA29188@bilver.magicnet.net>; from Bill Vermillion on Wed, Sep 23, 1998 at 09:48:10PM -0400 References: <360938BE.3569E424@eaznet.com> <199809240148.VAA29188@bilver.magicnet.net>
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On Wed, Sep 23, 1998 at 09:48:10PM -0400, Bill Vermillion wrote: > Eddie Fry recently said: > > Randal, > > > > Ronald says he has 2 class C's so his mask should be 255.255.255.0. > > He says he has two class C's but he's using class A addressing. > > Shouldn't the netmask really be 254.0.0.0 ? That way it will > supernet the 10.1 and the 10.2 into two parallel blocks out of > address.. 10.1 thru 10.2. 254 would give you a supernet which includes 10.0.0.0/8 and 11.0.0.0/8. > > I know you can't use the 1 bit mask in the subnetting a c because > it will give a network address and a mask with nothing in between. > > Will a 254.0.0.0 set it up so that 10.1.0.0 is the base and > 10.2.255.255 is the broadcast. To do that, the netmask would be 255.252.0.0, but that would include 10.0.0.0/16, 10.1.0.0/16, 10.2.0.0/16 and 10.3.0.0/16, so the broadcast would be 10.3.255.255 > > Or have I TOTALLY screwed up my understanding of how this works? Yes, you do. > > There are days when a hand-cranked phone would be easier to deal > with. > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-isp" in the body of the message -- Regards, Ulf. --------------------------------------------------------------------- Ulf Zimmermann, 1525 Pacific Ave., Alameda, CA-94501, #: 510-769-2936 Alameda Networks, Inc. | http://www.Alameda.net | Fax#: 510-521-5073 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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