In the last post, we learned about TCP. TCP and UDP are representative protocols used in Layer 4 transport layer. So today,
Continue reading
tcp/ip
[ACSA Training #8] TCP Header
In the last post, we looked at the IPv4 header at Layer 3 network layer. Today, we will look at the transport layer, Layer 4.
Continue reading
[ACSA Training #7] IPv4 Header
The figure shows the IPv4 header information added to the packet at Layer 3. The important fields in the header are: TTL (Time To Live)
Continue reading
[ACSA Training #5] TCP/IP Stack
The Internet Protocol Suite is a conceptual model and communications protocol used in the Internet and computing networks. The basic protocols of this suite are
Continue reading