I eventually located the problem to the enabling of forwarding for IPv6. I don't (yet) need the forwarding on IPv6 but am going to need to once I use the /48;<BR><BR>Does anyone have any ideas?

This post explains what is IP routing and the various Routing protocols - Distance vector (RIP, IGRP) and Link state (OSPF, IS-IS).

NP-1c is the only 10-Gigabit network processor to complete the NPF MPLS Forwarding and the demanding LinleyBench benchmarks. The third benchmark, the NPF IP Forwarding, was performed by NP-1c using ...

Only use this if you really have a good reason to do so. DHCP Reservations One of the annoying aspects of port forwarding is that your router dynamically assigns IP addresses to your computers.