Xbox Live and Teredo

Tue Jan 2 23:40:09 UTC 2018

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 at nanog.org] On Behalf Of Justin Wilson
Sent: Tuesday, January 2, 2018 3:15 PM
To: NANOG list <nanog at 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 at 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 at cmadams.net> wrote:
> 
> Once upon a time, Mark Andrews <marka at 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 at cmadams.net>
> 