Discovering LAN, IP, and TCP/UDP-Based Attacks
Local Area Networks (LANs), Ethernet protocols, and LAN switching are used to implement layers 1 and 2 and carry information between nodes that are directly attached to the LAN. The Internet Protocol (IP) provides addressing and enables routing protocols to forward packets between end nodes – that is, layer 3. The Transport Control Protocol (TCP) and the User Datagram Protocol (UDP) are the main protocols in Layer 4 that provide connectivity between end processes – for example, a client and a server. In addition to these, there are several other protocols that assist in the proper operations of the network; among them are the Address Resolution Protocol (ARP), which resolves the destination Media Access Control (MAC) address from the destination IP, and the Dynamic Host Configuration Protocol (DHCP), which automatically allocates an IP address, subnet mask, and other parameters to end nodes and other protocols, without which...