0 votes 0 votes Explain three way handshaking and four way handshaking with half close option for connection termination what is this four way handshaking and how connection termination takes place please explain?? Computer Networks computer-networks + – LavTheRawkstar asked Apr 4, 2017 LavTheRawkstar 1.5k views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
2 votes 2 votes For 3 way handshake refer :http://www.omnisecu.com/tcpip/tcp-three-way-handshake.php The WPA2 standard for wireless uses a four-way handshake defined in IEEE 802.11i-2004 The four-way handshake is designed so that the access point (or authenticator) and wireless client (or supplicant) can independently prove to each other that they know the PSK(pre-shared key)/PMK( Pairwise Master Key), without ever disclosing the key. For More Information visit this link.https://en.wikipedia.org/wiki/IEEE_802.11i-2004 Shubham Sharma 2 answered Apr 5, 2017 Shubham Sharma 2 comment Share Follow See all 2 Comments See all 2 2 Comments reply LavTheRawkstar commented Apr 5, 2017 reply Follow Share Dear sir please tell about half close option for connection termination what is this half close option ? 0 votes 0 votes Shubham Sharma 2 commented Apr 5, 2017 reply Follow Share Every TCP connection consists of two half-connection which are closed independently of each other. So if one end sends a FIN, then the other end is free to just ACK that FIN (instead of FIN+ACK-ing it), which signals the FIN-sending end that it still has data to send. So both ends end up in a stable data transfer state other than ESTABLISHED--namely FIN_WAIT_2 (for the receiving end) and CLOSE_WAIT (for the sending end). Such a connection is said to be half closed and TCP is actually designed to support those scenarios, so half closed connections is a TCP feature. for more information visit this link : http://www.vorlesungen.uni-osnabrueck.de/informatik/networking-programming/notes/22Nov96/3.html 1 votes 1 votes Please log in or register to add a comment.