Test your IPv4 and/or IPv6 connectivity.

The Cevi helpdesk may ask you for the information below.

You are connecting to ip4info.cevi.be with an IP Address of:
  IPv4-only Test Dual-Stack Test IPv6-only Test  

The IPv4-only and IPv6-only test returns the following IP addresses:

If the IPv6-only test shows "The page cannot be displayed" (Internet Explorer), "Server not found" (Firefox), any error or search page then you do not have working IPv6 connectivity.
The Dual-Stack test shows which protocol your browser prefers when you have both IPv4 and IPv6 connectivity. This page should work even on computers with IPv6-only connectivity.