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Packet Packets are bundles of appropriate sizes when sending and receiving data. In other words, it is the unit of transmission of cut data to facilitate transmission over the network. For example, data is divided into packet units and transmitted to IP layer. - Data Encapsulation When sender sends data to the receiver, it is the process of putting header on the data. - Data Decapsulation When r..

port forwarding In computer networking, port forwarding or port mapping is an application of network address translation that redirects a communication request from on address and port number combination to another while the packets are traversing a network gateway, such as a router or firewall. ㅁ ㅁ ㅁ my house --------------------------> my lab -----------------------------> server public IP(ex,..