CDN, Steam, Origin and NAT.

Thu Apr 21 02:27:41 UTC 2016

Hi,

We are running a small-ish LAN event in Toronto where we have to use a 
single IP address to NAT between 250-350 players. I have been made aware 
of possible issues with different services like Steam, Origin and Twitch 
who can run into issues when a large number of connections seem to 
originate from a single IP address. I just wanted to poke the list to 
see if anyone can chime him on their experiences with NATing customers 
and the impact it might have on public services. I am usually using 
public IP address space for players when designing most large LAN 
events. Dealing with NAT for a medium-ish amount of customers is not 
something I am used to do.

It feels silly to worry about that when you assume that WISP 
sometimes(mostly?) use CGN when providing internet to customers. The 
same could be said of most large office buildings around the world.

I appreciate any input on the matter!

Thanks

Laurent