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Date: Wed, 11 Jun 2008 15:03:13 -0500
To: freebsd-questions@freebsd.org
From: Len Conrad <LConrad@Go2France.com>
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Subject: Re: IPv4 loopback address is missing, why?
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and we can do this, too:

ifconfig lo 127.0.0.1 netmask 255.0.0.0 up

then ifconfig shows:

lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
         inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3
         inet6 ::1 prefixlen 128
         inet 127.0.0.1 netmask 0xff000000

thanks
Len