bin/117214: ipfw(8) fwd with IPv6 treats input as IPv4

[Willem Jan Withagen]

Lars Eggert wrote:
> The following reply was made to PR bin/117214; it has been noted by GNATS.
> 
> From: Lars Eggert <lars.eggert at nokia.com>
> To: bug-followup at FreeBSD.org, fabian at wenks.ch
> Cc:  
> Subject: Re: bin/117214: ipfw(8) fwd with IPv6 treats input as IPv4
> Date: Sat, 22 Aug 2009 02:27:44 +0300
> 
>  I still see this on 7.2-STABLE:
>  
>  [root at fit: ~] uname -a
>  FreeBSD fit.nokia.com 7.2-STABLE FreeBSD 7.2-STABLE #18: Fri Jun 26  
>  15:43:17 EEST 2009     root at fit.nokia.com:/usr/obj/usr/src/sys/FIT  i386
>  
>  [root at fit: ~] ipfw add 64010 fwd 2001:2060:40:1::1 ip6 from  
>  2001:2060:40:1::123,2001:2060:40:1::124 to not  
>  2001:0708:0040:fff2::1/64 out
>  64010 fwd 0.0.7.209,2060 ip6 from  
>  2001:2060:40:1::123,2001:2060:40:1::124 to not 2001:708:40:fff2::/64 out
>  
>  [root at fit: ~] ipfw show 64010
>  64010         0           0 fwd 0.0.7.209,2060 ip6 from  
>  2001:2060:40:1::123,2001:2060:40:1::124 to not 2001:708:40:fff2::/64 out

The trouble is with the :'s and the fact that parsing doen't really take 
care of multiple :'s.
What I considering is changing it in such a way that one is allowed to 
specify ipv6 adresses as [a:bc::d] just like it works in firefox (and 
other places)

Question then is do we use [a:bc::d]/48:53 or [a:bc::d/48]:53?

--WjW