IRTT and Cloudflare tunneling support/setup? about irtt HOT 1 OPEN

Hi, I have not read all the documentation for the Cloudflare tunneling access service, but you would need to make sure that incoming packets into their network aren't blocked for any reason, and that they get to you. I would use tcpdump/wireshark to find out if any UDP/2112 packets are arriving to your server, or not. If not, that suggests there's something in the tunnel config to look at.

That said, instead of binding to an IP, you could also test it with irtt server --set-src-ip -d 0 -i 0 --hmac=XXXXX --fill=rand. That way, regardless of what address the UDP/2112 packets are coming in on, the irtt server will receive them, and at the same time, outgoing packets will use the same address they came in on, to avoid any potential routing problems.

To confirm, irtt only uses UDP packets on the specified port (2112 in your case). So, we just have to get those passed properly between client and server!

from irtt.