[yobid20]

^^^^ this. I work for a big company (15k engineers). Trying to use anything that is not TCP or UDP simply doesnt work here. For years, even UDP was blocked and the answer we got was always "why are you using UDP, use TCP instead". Yep you read that right. Most of these folks are very short sighted or narrow minded. We tried to use SCTP for one project, major blunder. Zero support from network teams. Sctp is blocked everywhere. All their custom software and scripts for network deployments only work with tcp and udp. And they will not change that. And that comes from higher ups the ppl in charge. They are set in there ways and will not budge. As for as QUIC support? Never gonna happen here.

[lxgr]

> Trying to use anything that is not TCP or UDP simply doesnt work here.

Good news, then: QUIC uses UDP.

> As for as QUIC support? Never gonna happen here.

So generic UDP is allowed, but QUIC is specifically detected and filtered? That would be bizarre.

[IgorPartola]

I have also had to deal with UDP getting blocked by a middle box before. It is rare now across the internet but you never know what intranet grey beards can do.

And UDP hole punching is a crutch for the fact that we still use IPv4.

[UltraSane]

I'm one of a few people who can say they used SCTP for its original purpose, SIGTRAN transmission of Signaling System 7 call setup data over IPSec tunnels. It was really cool seeing SS7 packets in the wireshark dumps.