conf/161885: FreeBSD 9 BETA 3 apparently ignores ifconfig_alias settings from rc.conf

[Dutch Daemon]

>Number:         161885
>Category:       conf
>Synopsis:       FreeBSD 9 BETA 3 apparently ignores ifconfig_alias settings from rc.conf
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Oct 21 17:10:10 UTC 2011
>Closed-Date:
>Last-Modified:
>Originator:     Dutch Daemon
>Release:        FreeBSD 9.0-BETA3 i386 and amd64
>Organization:
FreeBSD Forums
>Environment:
Both
FreeBSD 9.0-BETA3 #0 i386 and amd64 (several different machines, no GENERIC kernels); this problem seems to have existed for a couple of months (in -CURRENT / 9.0). This config was without problems in 8-STABLE.
>Description:
Please see this thread on the FreeBSD Forums:

http://forums.freebsd.org/showthread.php?t=27108
>How-To-Repeat:
Set ifconfig_nic0 and ifconfig_nic0_alias0 entries in rc.conf, and reboot. The primary IP address comes up, the alias is absent, and no activity can be found in dmesg -a.
>Fix:
Using the ipv4_addrs_nic0 type syntax does not have this problem. Creating the alias from the command line is also not a problem.

>Release-Note:
>Audit-Trail:
>Unformatted: