Date: Sun, 25 May 2003 12:07:06 +0930 From: Malcolm Kay <malcolm.kay@internode.on.net> To: Andy Farkas <andyf@speednet.com.au>, Grant Peel <grant@thenetnow.com> Cc: freebsd-questions@freebsd.org Subject: Re: IP alias Networking Errors. Message-ID: <200305251207.06527.malcolm.kay@internode.on.net> In-Reply-To: <200305251200.55652.malcolm.kay@internode.on.net> References: <20030525121135.C23835-100000@hewey.af.speednet.com.au> <200305251200.55652.malcolm.kay@internode.on.net>
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On Sun, 25 May 2003 12:00, Malcolm Kay wrote: > On Sun, 25 May 2003 11:51, Andy Farkas wrote: > > On Sat, 24 May 2003, Grant Peel wrote: > > > fxp0: flags=3D8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> = mtu > > > 1500 inet 65.39.193.154 netmask 0xfffffff0 broadcast 65.39.193.159 = inet > > > 65.39.193.155 netmask 0xffffffff broadcast 65.39.193.155 inet > > > 65.39.193.156 netmask 0xffffffff broadcast 65.39.193.156 inet > > > 65.39.193.157 netmask 0xffffffff broadcast 65.39.193.157 inet > > > 216.187.107.125 netmask 0xffffffff broadcast 216.187.107.125 inet > > > 216.187.107.126 netmask 0xffffffff broadcast 216.187.107.126 inet > > > 216.187.107.123 netmask 0xffffffff broadcast 216.187.107.123 inet > > > 216.187.107.124 netmask 0xffffffff broadcast 216.187.107.124 ether > > > 00:06:5b:ee:40:32 > > > media: Ethernet autoselect (100baseTX <full-duplex>) > > > status: active > > > > ... > > > > > When the next group of IP were assigned to me, and I set them as > > > aliases on this machine, thats when I started getting the errors. > > > > When you add aliases for a different subnet, the netmask should be th= e > > proper one for the subnet ie. netmask 0xfffffff0. > > From the man pages (ifconfig(8)): > alias Establish an additional network address for this interface. Th= is > is sometimes useful when changing network numbers, and one > wishes to accept packets addressed to the old interface. If the addres= s is > on the same subnet as the first network address for this interface, a > non-conflicting netmask must be given. Usually 0xffffffff is most > appropriate. > > Malcolm Aah yes; I see I misinterpreted your statement -- sorry! Malcolm
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