I'm not sure if this is the right answer for you, but... I would test whatever applications and protocols you're normally using. If the application is "network aware", then it should work regardless of whether you have an IPv4 or IPv6 address.
Things like web browsers (do they connect to sites like ipv6.google.com or www.v6.facebook.com for example)
Email clients. Are they able to connect to their respective servers.
Indirectly, you'll be testing DNS (as you'll use that to connect to the servers/websites)
If you're working with a local network, make sure you can authenticate and print/serve files through the network.
Hope this helps, and have a great day:) I'm sure others will have more ideas (and probably more accurate answers)
Patrick.
I have a similar question to Waqas. In particular, I would like test some Multicast server or a ssl conexions with other host.
Are there server that use Multicast or offer ssl connections to connect them or any schema of connections with other server to see the difference with the actual IPv4?
By the way, when I get the tunnel working the the speed connection to web pages decreases. I guess the cause is for the tunnel connection, but I don't have a certain answer for that. Do you have the same problem guys or only me feel that speed decreases? In the same, point do you know some Linux applications and options to test or seeing how IPv6 is working?? Already, I know that IPv6 tunnel is working through this page "http://go6.net/4105/home.asp" but I don't know how see connections with netstat ("nestat --inet" doesn't work) or get an ping6 because I don't have any external IPv6 to test ("ping6 http://www.v6.facebook.com" doesn't work, too). Do you have a "public" IPv6 to get a Ping form
it??
Patrick, which tool can I use to test DNS??
Thanks, in advance and I'll be waiting for yor answers.