Loopback problem

[Paul Schmehl]

I have two machines (that I know of) that have the same problem.  The 
loopback interface has no ipv4 address, and it doesn't start up on boot. 
If I bring the interface up (ifconfig lo0 up),. it has no ipv4 address.  If 
I bring it up this way - ifconfig lo0 inet 127.0.0.1, then I have an ipv4 
address and everything works fine.

On box is 5.4 SECURITY.  The other is 6.0 SECURITY.  Both boxes have 
ifconfig="lo0 inet 127.0.0.1" in the /etc/defaults/rc.conf file.  Both 
boxes boot fine and work fine, except for this one problem, which has 
manifested odd symptoms from time to time but never merited investigation 
(until now.)

Since I did the installs on both boxes, I've obviously missed something 
during the install (or chosen the wrong option).  Does anyone have a clue 
what it might be?  Or how I might fix this problem so the boxes will bring 
up lo0 at boot?

Paul Schmehl (pauls at utdallas.edu)
Adjunct Information Security Officer
University of Texas at Dallas
AVIEN Founding Member
http://www.utdallas.edu/