Hi! I have two general questions about ports/sockets: Is an open socket (listed in Port Explorer as "listening UDP - local address 192.168.253.100/1030 (my pc) - remote 18.104.22.168/53 (netcologne.de/DNS)" really fixed to the remote the IP? What happens if any other ip sends data to this open port? - In case it will be ignored, who ignores it? The Windows TCP/IP-Stack or will the data get dropped by the program which opened the port? I have a Palm and the program (hotsync.exe) who syncs the data between the handheld and my pc opens a udp port listening at local address 0.0.0.0/14237 and remote *.*.*.*/* ... what does that mean? Is it an half open port (maybe the socket creation process is not completed?) where only the local part defined is? Can any IP/Port send Data to it? Im a little bit confused about that... Thanks in advance!