Date: Wed, 9 Jan 2002 12:50:35 -0500 From: "Ron Hensley" <ronh@intercom.net> To: <teslik@yahoo.com>, <freebsd-questions@FreeBSD.ORG> Subject: Re: subnetting / ifconfig ip allocation problem Message-ID: <006a01c19936$298329b0$0273150a@woodstock.lanalyse.com> References: <20020109174233.57855.qmail@web12202.mail.yahoo.com>
next in thread | previous in thread | raw e-mail | index | archive | help
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 > When I set the machines like: > WindowsME > ip xxx.xxx.xxx.91 > subnet 255.255.255.252 > > FreeBSD > ip xxx.xxx.xxx.92 > subnet 255.255.255.252 > > I cannot ping each machine and FreeBSD gives me an error from ifconfig that The reason is that 255.255.255.252 subnet is saying break the class c int 64 networks, each with 4 hosts apiece. Of those 4 hosts, the first is unusable as its the 'Network Address' and the fourth is u nusable as its the 'Broadcast Address'. So anyways we have 64 blocks of 4 0-3, 4-7, 8-11, ... , 88-91, 92-95, ..., 252-255 So your Windows box is saying "Im on network xxx.xxx.xxx.88 but im trying to use my networks broadcast address as my IP Address!" Your FreeBSD box is saying "Im on network xxx.xxx.xxx.92 but im trying to use my network address as my IP Address!" The fix,. either use IPs 89 and 90 with a 255.255.255.252 mask, or use IPs 93 and 94 with a 255.255.255.252 address. Main thing is you need to use the 2 ips that are in the middle of a block of 4 addresses. -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 6.5.8 for non-commercial use <http://www.pgp.com>; iQA/AwUBPDyC6lFb04N5DzUjEQIa9wCggtGdTaE9zov/g/1XUPBwHu6ntCwAoKUX BTNRzKgq3RHhxX3o6UATk+zy =qWqW -----END PGP SIGNATURE----- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?006a01c19936$298329b0$0273150a>