IPv6

Depending on the enterprise's location, IPv6 either will be important or not. Even if IPv6 is not important today, it is highly likely that, at some point in the future, it will become relevant to the enterprise network.

Ask the provider about support for IPv6: Do you support IPv6 encapsulation natively across your network (using 6PE or something similar)? If not, do you have a road map for doing so? If such a road map exists, please detail the time frames in which you expect IPv6 support to be available.