Date: Fri, 25 May 2007 13:17:39 -0700 From: Chuck Swiger <cswiger@mac.com> To: Andrei Manescu <andrei.manescu@clicknet.ro> Cc: freebsd-net@freebsd.org Subject: Re: two public ip addresses on one interface Message-ID: <08556012-CA57-4B2A-A142-F5C1BC8D9009@mac.com> In-Reply-To: <000e01c79f03$b2cfce70$5501a8c0@ivorde> References: <000e01c79f03$b2cfce70$5501a8c0@ivorde>
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On May 25, 2007, at 12:34 PM, Andrei Manescu wrote: > If I want to put two public IP addresses, with different > subnetmasks (my ISP is changing some subnets and for two months I > will be able to use two public ip addresses) on the same interface > (xl0) my rc.conf shuld look like this: > > ifconfig_xl0="inet 84.125.210.108 netmask 255.255.252.0" > ifconfig_xl0_alias0="inet 81.66.10.36 netmask > 255.255.255.255" (this ip address has mask /24 ) If your aliases are part of the same subnet as the "primary" or first configured IP, then you want to use the all-1's netmask. In your case, however, the second IP is part of a completely different subnet, and you can (and should) use a /24 netmask.... -- -Chuck
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