amd64/150023: network subsystem does not work at all

[Eugen Konkov]

>Number:         150023
>Category:       amd64
>Synopsis:       network subsystem does not work at all
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-amd64
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Aug 26 18:00:33 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Eugen Konkov
>Release:        7.3-RELEASE-p2
>Organization:
FreeLine
>Environment:
FreeBSD vpn_shadow.in 7.3-RELEASE-p2 FreeBSD 7.3-RELEASE-p2 #3: Mon Jul 26 01:56:03 EEST 2010     kes at vpn_shadow.in:/usr/obj/usr/src/sys/vpn  amd64
here are same problem
FreeBSD flux.in 7.2-RELEASE FreeBSD 7.2-RELEASE #6: Sat Nov 14 17:19:22 EET 2009     dark at flux.in:/usr/obj/usr/src/sys/flux  i386
>Description:
cloned_interfaces="vlan4"
ifconfig_vlan4="inet 77.93.38.34 netmask 255.255.255.252 vlan 4 vlandev rl0"

reboot machine. and there are no trafic on vlan4 and rl0 interface
if I add any address to rl0 network will start to work. Now I can remove that fake address until reboot. 
>How-To-Repeat:

>Fix:
work around: add fake address to parent device
ifconfig_rl0="inet 192.168.254.254 netmask 255.255.255.255"

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