Subject: Re: mutating IPv4 aliases on NetBSD 2 systems
To: Jukka Salmi <>
From: Greg Troxel <>
List: tech-net
Date: 02/24/2006 10:18:02
  So, how do I correctly configure alias IP addresses? According to the
  FreeBSD [1]handbook only the first address should have a real netmask,
  and all aliases should be /32. But this seems to not work correctly
  if the order of the addresses might change suddenly...

If I use addresses on the same subnet, I use the same mask.  If the
aliases are from another prefix, I put them on lo0.

'correctly' very much depends on what you are trying to accomplish.

        Greg Troxel <>