Vendor gear lags
There's good news and bad news when it comes to software and hardware. The good news is that a big chunk of enterprises, almost half, know that most of their gear supports IPv6 and another 16 per cent knows that all of it does. The bad news is that this also means that companies are still working with a lot of gear that can't route an IPv6 address. One told us, "Our WAN suppliers and network vendors are currently the largest barriers to dual-stack IPv6 deployment. Currently our carrier does not offer MPLS service (or internet) in IPv6. Also, our previous network vendor (Nortel/Avaya) will not be offering upgrades on our existing gear to route IPv6. Our new network vendor (Juniper) does not yet have a full feature set (example: DHCPv6 Relay, important to campus VLANs, is missing)."