Multiple TCP server ports, single local address on W5300

Question

Is it possible to setup W5300 as TCP server with multiple sockets having different port numbers, but same local address? For example, the local address will be 192.168.0.3 and 8 servers with port adresses 200…207. It succeeds for one port and one socket, but not for multiple sockets. If I setup 8 sockets as TCP servers, on the LAN I can see only the last setup socket - 192.168.0.3:207. I tried to modify the routers routing table also, but no results yet.

Coccoliso · Answer

Hi, IP address and MAC address are only one for chip ( are common register ) but all socket can be set in listen mode on SAME or different port number. So for your solution the problem must be a software setting mistake.

kiringh · Answer

Thanks to Coccoliso, who has encouraged me to check one more time the socket setup code. Now the setup is ok and working. For other developers I can confirm, that W5300 can have 8 TCP servers working with same local address, but different port numbers. In my case: 192.168.0.3:[200…207]. Even the router does not need special setup (in this case, DIR-615).