Use IP for udp socket

src/net.rs

@@ -49,7 +49,7 @@ impl UdpSocket {
             family,
             SocketType::DGRAM,
             SocketFlags::NONBLOCK | SocketFlags::CLOEXEC,
-            Protocol::UDP,
+            Protocol::IP,
         )?;
 
         rustix::net::sockopt::set_socket_reuseaddr(&sock, true)?;