nanog mailing list archives

Re: Gaming Consoles and IPv4


From: Mike Hammett <nanog () ics-il net>
Date: Mon, 28 Sep 2020 07:44:53 -0500 (CDT)

Are non-ISP-provided routers all that common anymore? 


Aren't there enough IPv6-enabled operators with critical mass of IPv6 deployments that IPv4-only networks can be 
treated like the second-tier citizens they are? 




----- 
Mike Hammett 
Intelligent Computing Solutions 

Midwest Internet Exchange 

The Brothers WISP 

----- Original Message -----

From: "Matt Hoppes" <mattlists () rivervalleyinternet net> 
To: "Mike Hammett" <nanog () ics-il net>, "Daniel Sterling" <sterling.daniel () gmail com> 
Cc: "North American Network Operators' Group" <nanog () nanog org> 
Sent: Monday, September 28, 2020 7:42:16 AM 
Subject: Re: Gaming Consoles and IPv4 

Many... but not all... and just because the operator is doesn't mean the 
person you want to play with is. And just because the operator is 
doesn't mean the router you or the other person is using supports it. 

On 9/28/20 8:20 AM, Mike Hammett wrote: 
Aren't most of the major operators using IPv6? 



----- 
Mike Hammett 
Intelligent Computing Solutions <http://www.ics-il.com/> 
<https://www.facebook.com/ICSIL><https://plus.google.com/+IntelligentComputingSolutionsDeKalb><https://www.linkedin.com/company/intelligent-computing-solutions><https://twitter.com/ICSIL>
 
Midwest Internet Exchange <http://www.midwest-ix.com/> 
<https://www.facebook.com/mdwestix><https://www.linkedin.com/company/midwest-internet-exchange><https://twitter.com/mdwestix>
 
The Brothers WISP <http://www.thebrotherswisp.com/> 
<https://www.facebook.com/thebrotherswisp><https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg> 
------------------------------------------------------------------------ 
*From: *"Daniel Sterling" <sterling.daniel () gmail com> 
*To: *"Mike Hammett" <nanog () ics-il net> 
*Cc: *"Matt Hoppes" <mattlists () rivervalleyinternet net>, "North American 
Network Operators' Group" <nanog () nanog org> 
*Sent: *Sunday, September 27, 2020 8:33:56 PM 
*Subject: *Re: Gaming Consoles and IPv4 

Matt Hoppes raises an interesting question, 

At the risk of this being off-topic, in the latest call of duty games 
I've played, their UDP-NAT-breaking algorithm seems to work rather well 
and should function fine even behind CGNAT. Ironically turning on upnp 
makes this *worse*, because when their algorithm probes to see what 
ports to use, upnp sends all traffic from the "magical xbox port" to one 
box instead of letting NAT control the ports. This does cause problems 
when multiple xboxes are behind one NAT doing upnp. If upnp is on and 
both xboxes are fully powered off and then turned on one at a time, 
things do work. But when upnp is off everything works w/o having to do that. 

There are many other games and many CPE NAT boxes that may do horrible 
things, but CGNAT by itself shouldn't cause problems for any recent 
device / gaming system. 

It is true that I've yet to see any FPS game use ipv6. I assume that's 
cuz they can't count on users having v6, so they have to support v4, and 
it wouldn't be worth their while to have their gaming host support 
dual-stack. just a guess there 

-- Dan 



On Sun, Sep 27, 2020 at 7:29 PM Mike Hammett <nanog () ics-il net 
<mailto:nanog () ics-il net>> wrote: 

Actually, uPNP is the only way to get two devices to work behind one 
public IP, at least with XBox 360s. I haven't kept up in that realm. 



----- 
Mike Hammett 
Intelligent Computing Solutions <http://www.ics-il.com/> 
<https://www.facebook.com/ICSIL><https://plus.google.com/+IntelligentComputingSolutionsDeKalb><https://www.linkedin.com/company/intelligent-computing-solutions><https://twitter.com/ICSIL>
 
Midwest Internet Exchange <http://www.midwest-ix.com/> 
<https://www.facebook.com/mdwestix><https://www.linkedin.com/company/midwest-internet-exchange><https://twitter.com/mdwestix>
 
The Brothers WISP <http://www.thebrotherswisp.com/> 
<https://www.facebook.com/thebrotherswisp><https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg> 
------------------------------------------------------------------------ 
*From: *"Matt Hoppes" <mattlists () rivervalleyinternet net 
<mailto:mattlists () rivervalleyinternet net>> 
*To: *"Darin Steffl" <darin.steffl () mnwifi com 
<mailto:darin.steffl () mnwifi com>> 
*Cc: *"North American Network Operators' Group" <nanog () nanog org 
<mailto:nanog () nanog org>> 
*Sent: *Sunday, September 27, 2020 1:22:51 PM 
*Subject: *Re: Gaming Consoles and IPv4 

I understand that. But there’s a host of reasons why that night not 
work - two devices trying to use UPNP behind the same PAT device, an 
apartment complex or hotel WiFi system, etc. 

On Sep 27, 2020, at 2:17 PM, Darin Steffl 
<darin.steffl () mnwifi com <mailto:darin.steffl () mnwifi com>> wrote: 


This isn't rocket science. 

Give each customer their own ipv4 IP address and turn on upnp, 
then they will have open NAT to play their game and host. 

On Sun, Sep 27, 2020, 12:50 PM Matt Hoppes 
<mattlists () rivervalleyinternet net 
<mailto:mattlists () rivervalleyinternet net>> wrote: 

I know the solution is always “IPv6”, but I’m curious if 
anyone here knows why gaming consoles are so stupid when it 
comes to IPv4? 

We have VoIP and video systems that work fine through 
multiple layers of PAT and NAT. Why do we still have gaming 
consoles, in 2020, that can’t find their way through a PAT 
system with STUN or other methods? 

It seems like this should be a simple solution, why are we 
still opening ports or having systems that don’t work? 





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