Date: Wed, 14 Sep 2005 12:00:12 -0400 From: "Grant Peel" <gpeel@thenetnow.com> To: <freebsd-questions@freebsd.org> Subject: IPs , Netmasks and Broadcast. Message-ID: <014f01c5b945$65df9280$6501a8c0@GRANT>
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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. 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
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