Date: Thu, 15 Sep 2005 10:07:09 -0500 From: Eric Schuele <e.schuele@computer.org> To: Grant Peel <gpeel@thenetnow.com> Cc: freebsd-questions@freebsd.org Subject: Re: IPs , Netmasks and Broadcast. Message-ID: <43298E1D.8090006@computer.org> In-Reply-To: <014f01c5b945$65df9280$6501a8c0@GRANT> References: <014f01c5b945$65df9280$6501a8c0@GRANT>
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Grant Peel wrote: > Hi All, > > Now I am really confused. > > Up until this morning I thought I had a good handle on when I need to > use the real Netmask and Broadcast. > > For example, If I have 3 servers, and my upline asigns me a block of 128 > addresses, for the first ip used (from this block) on each server, I > would need to specify the IP, true netmask and a broadcase. Then, when > using more IPs from that block, I would use a 255.255.255.255 netmask > and a broadcast equal to the IP. Google CIDR IP Netmask IP broadcast HTH. > > Today, I was in this exact position where I was tring to add an (the > first one one THAT machine, from that block) IP from a block that is > almost completely used up on another server, and the one I was adding it > to would not take it. When I tried adding it with a 255.255.255.255 > netmask, and a broadcast eaqual to the amount of IPs from that block - > it worked. > > this is on a FreeBSD 4.10 machine. > > WHich way is correct for 4.7 and higher? > > -Grant > > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to > "freebsd-questions-unsubscribe@freebsd.org" > -- Regards, Eric
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