IPv4 Dynamic IP Address Changes

[BravaNet]

I am new to TunnelBroker and was wondering what happens when my ISP changes my IPv4 address because my address is Dynamic not Static. Do I need to update my IPv6 settings that TunnelBroker assigned and if I do can I automate that like I do with DynDns?
Thanks

[snarked]

See Reply #1 in this thread:  http://www.tunnelbroker.net/forums/index.php?topic=3018.0

[BravaNet]

See Reply #1 in this thread:  http://www.tunnelbroker.net/forums/index.php?topic=3018.0

Got it now, sorry and thanks for the help.

[BravaNet]

By the way, the firmware on my router allows me to update but the built in settings point to http://www.tunnelbroker.net/ and it asks for User ID (not your username),   Password, Global Tunnel ID. But when I put in all that information it fails. I am not sure about the User ID (not your username). Any chance you explain what I may need to do to get this to work.
Thanks again.