> > Syn, ACK and ACK ACK or something. > Let us suppose A and B wants to talk with each other. Then
Step1: Machine_A will set one of the TCP flags to 1 and send it with a random sequence number, I have assumed it to be 1 here in this example. A ---------------------SYN_A=1---------------------------------------------------> B Step2: Here Machine_B will send its own random sequence number, I assumed it as 1 and I till add one to the SYN number of A and send it back as ACK_A=2, By that Machine A will know that B received the initial SYN packet which it sent. B ------------------SYN_B=1 & ACK_B=2 (SYN_A+1) -------------------> A Step3: Here machine_A will do the samething of adding one to the syn_B. A ------------------ACK_A=2 (SYN_B+1) --------------------------------------> B These three steps are the sole reason why TCP is called a connection oriented connections and we can resend a packet if the acknowledgement is not received. Regards, Balasubramaniam Natarajan www.etutorshop.com/moodle/ _______________________________________________ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
