conf/159846: routing_stop_inet6() logic doesn't handle ipv6_network_interfaces properly

[Garrett Cooper]

>Number:         159846
>Category:       conf
>Synopsis:       routing_stop_inet6() logic doesn't handle ipv6_network_interfaces properly
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Aug 17 20:30:09 UTC 2011
>Closed-Date:
>Last-Modified:
>Originator:     Garrett Cooper
>Release:        9.0-BETA1
>Organization:
iXsystems Inc
>Environment:
FreeBSD akai-ntbk.local 9.0-BETA1 FreeBSD 9.0-BETA1 #0 r224653M: Fri Aug 12 04:49:31 PDT 2011     root@:/usr/obj/usr/src/sys/NETBOOK_NOSMP  i386
>Description:
As stated in /etc/defaults/rc.conf...

### IPv6 options: ###
ipv6_network_interfaces="auto"  # List of IPv6 network interfaces
                                # (or "auto" or "none").

So, the only accepted values are auto and none.

This doesn't make sense though when used in routing_stop_inet6 though:

routing_stop_inet6()
{
        local i

        route -n flush -inet6
        for i in ${ipv6_network_interfaces}; do
               ifconfig $i inet6 -defaultif
        done
}

Currently it's cosmetic noise, for the most part, but this also doesn't remove the default interface value either properly.
>How-To-Repeat:

>Fix:


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