loopback won't enable automatically

[Pollywog]

On Wednesday 05 September 2007 04:48:53 Ian Smith wrote:
> On Wed, 5 Sep 2007 01:47:47 +0000 Pollywog <lists-fbsd at shadypond.com> wrote:
>  > I have to manually set the loopback interface after each reboot on one
>  > machine (it is a laptop):
>  >
>  > ifconfig lo0 127.0.0.1 netmask 255.0.0.0
>  >
>  > Then everything is fine.
>  >
>  > I added ifconfig_lo0="127.0.0.1 netmask 255.0.0.0"  to /etc/rc.conf
>  > but for unknown reasons it now looks like this and I still need to set
>  > lo0 manually after reboots:
>  >
>  > ifconfig_lo0="inet 127.0.0.1 netmask 255.0.0.0"
>  >
>  > Any ideas?  I am running FreeBSD 7
>
> I noticed before when you posted your ifconfig with missing localhost
> IPv4 address.  You shouldn't have had to add it to rc.conf in the first
> place, as you should find this line existing in /etc/defaults/rc.conf:
>
> ifconfig_lo0="inet 127.0.0.1"   # default loopback device configuration.
>
> Check that nothing has messed with /etc/defaults/rc.conf, and also that
> you have no later ifconfig_lo0 entry in rc.conf.  The last one found
> there is the one that applies, later entries overriding earlier ones.
>
> Apart from that, I can't imagine what might be deleting your default
> localhost configuration, unless you're using rc.local?  Otherwise I'd be
> searching any active scripts in /usr/local/etc/rc.d/ for any oddnesses
> that may hae been installed by some port or other?
>
> Cheers, Ian
I did find it in /etc/default/rc.conf:

ifconfig_lo0="inet 127.0.0.1"   # default loopback device configuration.