On Wed, Mar 30, 2011 at 06:07:28PM -0400, Edward Ned Harvey wrote:
<snip>
> Therefore, a stateful firewall packet filter at the perimeter is necessary
> to block inbound unsolicited traffic.
> 
> Therefore, p2p in general is broken.  Unless....
> 
Having nodes as peers implies that they can participate in bidirectional 
communication.

Whether they will be allowed to do so or not is a policy issue. There is 
every option to assign IP blocks from an IPv6 subnet routed to a null device.

If you want to expose a server to the Internet, route it. If there's 
communication which shouldn't be routed, use the null routed subnet.
There's a lot of IP addresses available in IPv6.

Devdas Bhagat
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