Xbox Live and Teredo

[Justin Wilson <lists () mtin net>]

Figured the collective here might have an answer.  All of a sudden a network I manage started getting complaints from 
XBOX live users are getting error messages about “Can’t get Teredo IP address” on their consoles.  Is anyone else 
seeing this wide spread?  The Microsoft support default answer is “Your ISP is blocking ports” when I can do an nmap on 
each of these customers and all of the xbox live ports are open.  As an FYI these are not netted customers, but have 
true publics.

We have tried disabling IPV6 on their interfaces and that does not seem to have helped.  We have had some customers 
power cycle everything in their home (CPE, router, xbox) and still no go.

Anyone else running into this? Does Microsoft have a higher level support for talking with ISPs at all?


Justin Wilson
j2sw () mtin net

www.mtin.net
www.midwest-ix.com