Chen Zhuang Lei

> Or did you imply that you were using the `--protocol tcp` flag? Results will be wildly different from UDP depending on ISP and NAT. yes, I'm trying to detect...

same result for 222.222.x.x The box I used have NAT1 (full cone nat) network, here is the result of the tool I wrote:

**tcpstunc** can not connect to stunserver.stunprotocol.org, different protocol.