conf/121812: ipv6_gateway_enable incorrectly disables rtsol

[Mark Andrews]

>Number:         121812
>Category:       conf
>Synopsis:       ipv6_gateway_enable incorrectly disables rtsol
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Mar 18 00:30:01 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator:     Mark Andrews
>Release:        FreeBSD 6.3-PRERELEASE i386
>Organization:
ISC
>Environment:
System: FreeBSD drugs.dv.isc.org 6.3-PRERELEASE FreeBSD 6.3-PRERELEASE #18: Mon Dec 10 14:45:13 EST 2007 marka at drugs.dv.isc.org:/usr/obj/usr/src/sys/DRUGS i386


>Description:

	It is perfectly legal to use rtsol on one interface and
	rtadvd on a different interface.  The current startup
	scripts assume that this is illegal which was not the
	intent of the IPv6 RFC's.  See the audio transcripts
	of IETF71 ipv6ops meeting, second day, for conformation.

	A model where one or more (upstream) interface gets their
	address via router solitations and then performs prefix
	discover over those interface to configure (downstream)
	interfaces which advertise those prefixes via rtadvd is
	expected to be supported.

>How-To-Repeat:

	By inspection.

        case ${ipv6_gateway_enable} in
        [Yy][Ee][Ss])
                rtsol_available=no
                ;;
        *)
                rtsol_available=yes
                ;;
        esac

>Fix:

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