Re: IPv6 Type 0 Routing Header issues

[David Malone <dwmalone at maths.tcd.ie>]

On Mon, Apr 30, 2007 at 05:43:04PM -0700, james woodyatt wrote:
> I  
> further recommend the draft standards be amended to require that RH0  
> be rejected with an ICMP error when received at the first destination  
> and dropped silently in all other cases.  This will allow operators  
> to identify and neutralize preemptively exactly those nodes which do  
> not comply with the amended standard.

I was wondering if this is actually useful. I would expect that
operators would want to find hosts that blindly process RH0 headers,
not machines that send them or machines that don't process them.
Sending an ICMP message would seem only to flag up machines that
send RH0 or machines that don't process RH0, which doesn't seem so
useful.

If an operator wanted to scan for machines that process RH0 headers,
then patched machines sending ICMP messages might nearly be a
hinderance.

	David.

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