[arin-ppml] ARIN-prop-127: Shared Transition Space for IPv4 Address Extension

Jack Bates jbates at brightok.net
Sat Jan 22 18:05:38 EST 2011

On 1/22/2011 5:00 PM, George Bonser wrote:
> 10 years down the road, Joe's Fish Farm wants to establish a VPN with
> Bob's Fish Feed and low and behold, Bob's Fish Feed is using exactly the
> same address space internally that the Fish Farm is.

No different than if they'd used RFC-1918 and established a VPN. What we 
care about is Bob's Fish Feed connecting to LSN ISP who's using the /10, 
which would break him unless he paid for public space.

> That is one reason why I would favor use of the old Class E space for
> this. Vendors of CPE and NAT devices could hack the stack to allow this
> space but end user workstations would be unable to use it.
I'm afraid E has been so polluted by code restraints, there is no proper 
recovery of it. You're asking for a support nightmare.


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