From owner-freebsd-net  Wed Nov  6  9:25:36 2002
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Date: Wed, 6 Nov 2002 09:25:34 -0800
From: Maxime Henrion <mux@freebsd.org>
To: Hajimu UMEMOTO <ume@mahoroba.org>
Cc: net@FreeBSD.org
Subject: Re: problems with stf(4) and ipv6_gateway_enable
Message-ID: <20021106172533.GQ26605@elvis.mu.org>
References: <20021106010040.GJ26605@elvis.mu.org> <ygevg3azlj9.wl%ume@mahoroba.org>
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Hajimu UMEMOTO wrote:
> Hi,
> 
> >>>>> On Tue, 5 Nov 2002 17:00:40 -0800
> >>>>> Maxime Henrion <mux@freebsd.org> said:
> 
> mux> 	ipv6_enable="YES"
> mux> 	ipv6_defaultrouter="2002:c058:6301::"  # Use this for 6to4 (RFC 3068)
> mux> 	ipv6_prefix_xl1="2002:5143:8351:"
> mux> 	stf_interface_ipv4addr="81.67.131.81"
> 
> It seems you do configure your box as follows:
> 
> 	 (6to4 router)
> 	      | 2002:c058:6301::
> 	      |
>               |
> 	      | stf0
>               | 2002:5143:8351:0::1
>            (your box)
> 	      | xl1
> 	      | 2002:5143:8351:0:EUI-64
> 	      |
> 	------+------------------------------------
> 	                      2002:5143:8351:0::/64
> 
> You cannot share 2002:5143:8351:0::/64 between xl1 and stf0.  Please
> don't use same SLA-ID for xl1 and stf0.  If you want to use 0 for stf0
> (default of stf_interface_ipv6_slaid), please use non-zero SLA-ID for
> xl1 like:
> 
> 	ipv6_prefix_xl1="2002:5143:8351:1"
> 
> Or, if you want to use 0 for xl1, please set stf_interface_ipv6_slaid.

I changed my ipv6_prefix_xl1 variable as you suggested, and I'm not
getting any errors at boot now, thanks!

However, it still doesn't seem to work properly.  When pinging an IPv6
host from a box in my local subnet, I'm getting this warning on the box
running rtadvd(8) :

cannot forward src fe80:0001::0a00:20ff:fef9:8c7a, dst 3ffe:8114:1000::036b, nxt 58, rcvif xl0, outif stf0

And I don't receive any ping back, though it works if I ping from the
router.  Moreover, the boot scripts still display :

IPv4 mapped IPv6 address support=NO

Even though stf(4) is configured properly.  Any ideas ?

Thanks,
Maxime

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