Date: Mon, 28 Jan 2008 16:46:19 +0100 (CET) From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> To: Siraj Shaikh <siraj.shaikh@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: IP Aliasing Message-ID: <20080128164447.D3391@wojtek.tensor.gdynia.pl> In-Reply-To: <3b2ddd940801280627m6d747cd1g27682bcd9e50ceb7@mail.gmail.com> References: <3b2ddd940801280627m6d747cd1g27682bcd9e50ceb7@mail.gmail.com>
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> > I am wondering if anyone has some experience in using it, and what I > want to know > > 1) is there an upper limit to configuring a number of alias addresses? no idea, i have 37 without problems. > > 2) if an interface is configured with an alias address, then what > address is shown on the traffic leaving this interface? So, for > example, if I were to ping this machine on its primary address, I > expect to get a response from the primary address of the interface. > What happens if I ping an alias address, would I get a response from > this alias address (as source IP on packets?), or would I get a yes you will get from the IP you pinged. > 3) In the above scenario, all traffic leaving the interface > (regardless of the source IP on it) will have the same MAC address > (the one of the interface) - is that right? yes. > > 4) Does anyone know if there are there any other network > characteristics or behaviour by which we can distinguish a machine > having more than one IP address (primary plus alias) configued on one > of its interface? it depends how services are configured.
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