Date: Wed, 25 Oct 1995 13:02:23 -0400 From: "Garrett A. Wollman" <wollman@lcs.mit.edu> To: Mark Tinguely <tinguely@plains.nodak.edu> Cc: davidg@root.com, mikebo@tellabs.com, bugs@freebsd.org, hackers@freebsd.org Subject: Re: 2.1.0-951020-SNAP: Major bug in NFS again! Message-ID: <9510251702.AA15161@halloran-eldar.lcs.mit.edu> In-Reply-To: <199510251458.JAA09084@plains.nodak.edu> References: <199510251458.JAA09084@plains.nodak.edu>
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<<On Wed, 25 Oct 1995 09:58:04 -0500, Mark Tinguely <tinguely@plains.nodak.edu> said: > used lowest IP number whether the lowest IP was the real (ifconfig without > an alias) interface address or not There is no such distinction. All the alias flag does is tell the `ifconfig' program not to delete the old interface address before adding the new one. As far as the kernel is concerned, all aliases are equal. This becomes more clear if you consider the case for which aliases were originally written (multiple logical IP subnets on one wire). In any case, FreeBSD does the right thing when serving NFS: it sends replies from the address to which the request was send; this is unlike Sun's behavior---they never bothered to think about multi-homing---which sends a reply back from any (effectively) randomly-chosen address on the host regardless of where the request was sent. (This fits in with Sun's demonstrated philosophy of no security and brokenness in the case of network failures.) -GAWollman -- Garrett A. Wollman | Shashish is simple, it's discreet, it's brief. ... wollman@lcs.mit.edu | Shashish is the bonding of hearts in spite of distance. Opinions not those of| It is a bond more powerful than absence. We like people MIT, LCS, ANA, or NSA| who like Shashish. - Claude McKenzie + Florent Vollant
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