Owen DeLong <owen@delong.com> writes:
Sure, but this is a useless savings that comes at the cost of awkward traceroute output that will initially confuse your new employees and consistently confuse your customers.
Like MPLS or asymmetric routing... Noone wants unnecessarily confused employees or customers, but I don't think confusing traceroute output comes very high on the network design criteria list these days :) Whether the savings are useless depends on how you count the cost. Address space savings are of course pointless, but managing address allocations does have a cost. It doesn't have to be high, but it is a cost you have to consider. FWIW, we decided to go with an IA_NA based WAN GUA for CPE management purposes - we needed a management address and didn't want to steal from the customers IA_PD prefix. Bjørn