DHCP, NAT + Port Forwarding

• What does DHCP stand for?

  Dynamic Host Configuration Protocol
• What is the purpose of the DHCP system?

  To automatically allocate IP addresses to devices
• What is the basic concept of NAT?

  It matches private IP addresses with public ones
• Why is NAT used?

  To conserve public IP addresses and enhance security
• What is port forwarding?

  It directs traffic from a specific port to a device
• Why is port forwarding used?

  To provide services to clients on the internet
• How are dynamic IP addresses allocated?

  Automatically when a device connects to a network
• What does a dedicated DHCP server do?

  Manages a pool of available IP addresses
• What is the role of the transition table in NAT?

  It maps public and private IP addresses
• Why is a unique IP address not needed for every device?

  Only the router needs a public IP address
• What happens to the private IP address in NAT?

  It is not broadcasted over the internet
• If a server has a non-routable IP address, what is needed to provide services to clients?

  Port forwarding on the router
• What are the key functions of DHCP, NAT, and Port Forwarding?


  • DHCP: Automatically allocates IP addresses
  • NAT: Matches private IPs with public ones
  • Port Forwarding: Directs traffic to specific devices
• How do DHCP and NAT contribute to network efficiency and security?

  • DHCP: Reduces manual IP assignment
  • NAT: Conserves public IPs and hides private IPs