8 bytes
In the commonly used TCP/IP communications, that would either be a TCP header, or a UDP header.In the commonly used TCP/IP communications, that would either be a TCP header, or a UDP header.In the commonly used TCP/IP communications, that would either be a TCP header, or a UDP header.In the commonly used TCP/IP communications, that would either be a TCP header, or a UDP header.
UDP is a Transport layer protocol or fourth layer protocol. UDP is a connection less protocol used in transport layer. UDP header have four fields in total .
Did you try Wireshark?
both tcp and udp
The sequence number, acknowledge number, and Window fields.
The UDP (User Datagram Protocol) header contains a total of four fields, which are: source port, destination port, length, and checksum. Each of these fields is 2 bytes long, making the total UDP header size 8 bytes. Unlike some protocols, UDP does not include additional headers like options or flags, keeping it simple and lightweight for fast transmission.
in tcp header (32 bits) we have a field that is called options and padding that has variable in length and the header length shows the actual header size i.e size of 20 octets+size of options and padding field and in UDP we dont have any field like that and its header is fixed of 8 OCTETS (32 bits header size) refrence: WIRELESS COMMUNICATIONS AND NETWORKS by William Stallings Second Edition pg 91(see fig)
souce and destination ports
source and destination port
anonymous systems
maximum size is 512 bytes without header
• checksum • destination port • source port