This sentence jumped out at me from the hardware section, in the switches discussion:

“All of there current layer two products from these vendors support IPv6 for management.”

At least in my experience, this is only sorta-kinda true. I’ve seen many cases where a switch (or a router, firewall, VPN concentrator, IDS/IPS appliance) may support a bunch of management methods over IPv4 but only one or two methods over IPv6.

For example, a box might do http, https, telnet, snmp, and ssh over v4 but then only telnet and ssh over v6. So the vendor claims management over v6 — but only if you can use the subset of management methods they have today.

And that’s for enterprise-grade boxes; v6 management support is even sketchier on SoHo boxes.

All of which is another reason to test before deployment!