Date: Tue, 07 May 2002 10:47:46 -0700 From: Michael Sierchio <kudzu@tenebras.com> To: "R. David Murray" <bitz@bitdance.com> Cc: Ian <freebsd@damnhippie.dyndns.org>, Erich Zigler <erichz@superhero.org>, freebsd-stable@FreeBSD.ORG Subject: Re: Unable to alias IP's in 4.5 Message-ID: <3CD81342.6090009@tenebras.com> References: <20020507133834.I31920-100000@twirl.bitdance.com>
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R. David Murray wrote: > On Mon, 6 May 2002, Ian wrote: > >>What changed is that the code now enforces that you do it the right way, >>which is to use 255.255.255.255 as the netmask for the alias IPs. That is, >>use the normal/proper netmask for the primary IP for that NIC, then use >>255.255.255.255 for any alias IPs on the same subnet for that NIC. > > > That's rather counter-intuitive. Is that behavior mandated by > some standard or other? Some things appear counter-intuitive due to poor design, while others do because we're ignorant ;-) There are possible side effects to IP aliases in routing tables and arp handling -- using a netmask of 0xffffffff was always the proper approach, and now it is enforced. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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