RE: Xbox Live and Teredo

[Darrin Veit via NANOG <nanog () nanog org>]

Hey, Justin. I'll ping you offline to take a closer look. For others on the list, Xbox One uses Teredo for IPv4 P2P NAT 
traversal for multiplayer and chat. If the consoles are unable to communicate with Teredo servers to generate a Teredo 
IPv6 address and detect the NAT type that is present, that can cause issues joining multiplayer games and Party Chat 
sessions.

-----Original Message-----
From: NANOG [mailto:nanog-bounces () nanog org] On Behalf Of Justin Wilson
Sent: Tuesday, January 2, 2018 3:15 PM
To: NANOG list <nanog () nanog org>
Subject: Re: Xbox Live and Teredo

These are all Xbox one clients.  We don’t hand out IPv6 on this network yet, so I made sure to disable any sort of IPV6 
on the interfaces just to be sure because I figured Teredo is tied to v6.  The only thing we have not done yet is 
disable any IPV6 stuff on the customer routers.  Everyone has been getting link local addresses for the longest time.   
We just disabled ipv6 totally on the interfaces just to be safe.


Justin Wilson
j2sw () mtin net

https://na01.safelinks.protection.outlook.com/?url=www.mtin.net&data=02%7C01%7Cdveit%40microsoft.com%7C991c6b77eb124e576dd808d55236e511%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636505318085908776&sdata=q5nSKZiUbB0K5VvmN2bcOJ%2Fi9OuRVFFyL%2BaqX7uea24%3D&reserved=0
https://na01.safelinks.protection.outlook.com/?url=www.midwest-ix.com&data=02%7C01%7Cdveit%40microsoft.com%7C991c6b77eb124e576dd808d55236e511%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636505318085908776&sdata=leIx4fqr1OZfXXn1Z3wPWDigni6pLuV3h7JqwIA1%2Bxs%3D&reserved=0

> On Jan 2, 2018, at 6:06 PM, Chris Adams <cma () cmadams net> wrote:
>
> Once upon a time, Mark Andrews <marka () isc org> said:
> > Given that you have IPv6 I would be looking at why the XBOXs are attempting Teredo at all.  I would expect them to 
> > use the IPv6 addresses that you are assigning your customers.
>
> The OP didn't say what type of Xbox.  IIRC the Xbox 360 does not 
> support IPv6, while the Xbox One does (but neither would explain the Teredo).
> --
> Chris Adams <cma () cmadams net>