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Date: Fri, 24 Aug 2007 15:02:51 +0100
From: Tom Judge <tom@tomjudge.com>
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Cc: freebsd-isp@freebsd.org
Subject: Re: Loosing alias IPs
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Buki wrote:
> On Fri, Aug 24, 2007 at 02:11:58PM +0100, Tom Judge wrote:
>> Buki wrote:
> 
> [snip]
> 
>>> Also, aliased Ip addresses must be configured with netmask /32
>>>
>> This is only true if the IP aliases are in the same network as the first 
>> IP address. The following would be a valid configuration:
>>
>> ifconfig_em0="inet 192.168.0.1/24"
>> ifconfig_em0_alias0="inet 192.168.0.2/32"
>> ifconfig_em0_alias1="inet 192.168.1.1/24"
>> ifconfig_em0_alias2="inet 192.168.1.2/32"
> 
> yeah, after sending the mail I immediately thought of that scenario, but
> then again, from the original poster I got the idea the aliases were on
> the same network as the DHCP-assigned address
> 
> 
> Buki

In the original post all the masks should be /32 this is correct, 
however I just wanted to clear up for the archives that this is not 
always true.

Tom