Hi guys, some of you know that I'm implementing a tcp/ip stack. I've completed ARP, ICMP, UDP, IP and have now turned my intention to TCP. I can connect to a host and send and receive packets and handle sequence/acknowledge numbers. However I'm lost as to how you can detect a lost packet? Say I send 3 packets the same size and only 1 is acknowledge how do I know which one was acknowledge????
Thanks lads...