Address Resolution Protocol (ARP)

A subprotocol of the TCP/IP protocol suite that operates at the Data Link layer (layer 2). RARP is used to discover the IP address of a system by polling using its MAC address.
[view]

An attack where an attacker inserts bogus information into the ARP cache (the local memory store of discovered IP to MAC relationships).
[view]

A set of communications protocols that encompasses media access, packet transport, session communications, file transfer, electronic mail, terminal emulation, remote file access, and network management. TCP/IP provides the basis for the Internet. The structure of TCP/IP is as follows: Process layer clients: FTP, Telnet, SMTP, NFS, DNS; Transport layer service providers: TCP (FTP, Telnet, SMTP), UDP (NFS, DNS); Network layer: IP (TCP, UDP); and Access layer: Ethernet (IP), Token ring (IP).
[view]

A routing protocol that maintains a topography map of all connected networks and uses this map to determine the shortest path to the destination.
[view]

A protocol used to assign TCP/IP configuration settings to systems upon bootup. DHCP uses UDP port 67 for server point- to-point response and port 68 for client request broadcast. DHCP supports centralized control and management of network addressing. DHCP is an industry standard protocol used to dynamically assign IP addresses to network devices.
[view]