Hi,
What would happen if the customer used private address space and NAT & ALGs to hook this into the two providers' CIDR space? I think that this is an excellent idea.
APNIC is in the process of doing something like this. We will be requesting a /27 from the provider blocks of each of our peers at the connection point we're at. Each Internet accessible machine will have mutiple IP addresses per interface (VIF for Suns and ifconfig alias for BSDI boxes). Our internal machines are, of course, behind a firewall (TIS's Gauntlet) and using net 10. Of course, we'll be burning much more address space than we 'need' to, but we'll be adding 0 routing entries, even though we are multiply multi-homed. However, as I'm only a registry person and I "don't run real routers", it is possible I am missing something obvious that will result in this not working. If so, please let me know before I turn APNIC into slag...
Would the registries have problems with this approach?
Clearly APNIC doesn't.
Would it matter if they did? :-)
Only when an ISP went to get more address space from their registry. Regards, -drc P.S.: last I checked the routing tables were at 40853.