There is a critical error in UDP handling. It drops packets. I have fixed it in my fork.

[ple1n]

That's a long-standing problem that haunted me for 2 years.

• UDP streams don't expire quickly
• The receiver side drops the receiver
• Your code still tries to send via that sender, and simply errors and drops the packet when its not going through.

I have fixed it in nsproxy.

[SajjadPourali]

Thanks! That’s awesome. Feel free to open a PR

[ple1n]

I recently fixed all TCP bugs in nsproxy version of ipstack, which includes the retransmission and window bugs.