DHCP FAQ

Questions

  1. General
    1. What is DHCP?
    2. What is DHCP’s purpose?
    3. Who Created It? How Was It Created?
    4. Can DHCP work with Appletalk or IPX?
    5. How is it different than BOOTP or RARP?
    6. How is it different than VLANs?
    7. What protocol and port does DHCP use?
    8. What is an IP address?
    9. What is a MAC address?
    10. What is a DHCP lease?
    11. What is a Client ID?
    12. Why shouldn’t clients assign IP numbers without the use of a server?
    13. Can DHCP support statically defined addresses?
    14. How does DHCP and BOOTP handle other subnets?
    15. Can a BOOTP client boot from a DHCP server?
    16. Can a DHCP client boot from a BOOTP server?
    17. Is a DHCP server “supposed to” be able to support a BOOTP client?
    18. Is a DHCP client “supposed to” be able to use a BOOTP server?
    19. BOOTP client boot from a DHCP and BOOTPserver
    20. Can a DHCP server back up another DHCP server?
    21. When will the server to server protocol be defined?
    22. Is there a DHCP mailing list?
    23. In a subnetted environment, how does the DHCP server discover what subnet a request has come from?
    24. If a single LAN has more than one subnet number, how can addresses be served on subnets other than the primary one?
    25. If a physical LAN has more than one logical subnet, how can different groups of clients be allocated addresses on different subnets?
    26. Can DHCP support remote access?
    27. Can a client have a home address and still float?
    28. How can I relay DHCP if my router does not support it?
    29. How do I migrate my site from BOOTP to DHCP?
    30. Can you limit which MAC addresses are allowed to roam?
    31. Is there an SNMP MIB for DHCP?
    32. What is DHCP Spoofing?
    33. How long should a lease be?
    34. How can I control which clients get leases from my server?
    35. How can I prevent unauthorized laptops from using a network that uses DHCP for dynamic addressing?
    36. What are the┬áGotcha’s?
  2. Info on Implementations
    1. What features or restrictions can a DHCP server have?
    2. What are the DHCP plans of major client-software vendors?
    3. What Routers forward DHCP requests?
    4. What Routers include DHCP servers?
    5. What Routers use DHCP to configure their IP addresses?
    6. Which implementations support or require the broadcast flag?
    7. What servers support secondary subnet numbers?
    8. What servers support RFC-based dynamic DNS update?
    9. Do any servers limit the MAC addresses that may roam?

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