UDP is quickly becoming the base protocol for "I don't want TCP but I do need something that gets through firewalls". Exactly right. No need to invent a new pr

UDP is quickly becoming the base protocol for "I don't want TCP but I do need something that gets through firewalls". Exactly right. No need to invent a new protocol number in the IP headers. UDP is the perfect vehicle for custom protocols. And once you start experimenting with a somewhat intelligent custom protocol, it's amazing how easy it is to beat even well tuned TCP stacks on average over a large number of users. This is especially true, by large large margins, over mobile networks.