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Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
Dhcp by sir suhail
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Dhcp by sir suhail

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  • Graphic Artist:
    After the third and fourth click, there seems to be a shadow returning of the objects that have exited. It may cause confusion for the learner.
    You can straighten up with start and end points of the packets.
    Or, you can try using the pulsing circles (instead of the packets) that represent broadcasts. You can find the pulsing circles graphic in Elise’s media piece titled, The Role of DHCP. The link to this media piece will be sent in an e-mail to you.
    Also, for printing purposes, could you please set the slide build to print the last frame with all four bullets?
  • Graphic Artist:
    Please clean up slide build.
    There also seems to be some shadows of objects lingering after they have exited.
    These aren’t broadcasts, so we need to use the packets in this slide build.
    Also, for printing purposes, could you please set the slide build to print the frame that has the two bullets showing?
  • Graphic Artist:For printing purposes, could you please set the slide build to print the last frame?
  • Graphic Artist:
    For printing purposes, could you please set the slide build to print the first frame?
  • Graphic Artist:
    You can try using the pulsing circles (instead of the arrows labeled “broadcast”) that represent broadcasts. You can find the pulsing circles in Elise’s media piece titled, The Role of DHCP. The link to this media piece will be sent in an e-mail to you.
  • Graphic Artist:
    You can try using the pulsing circles (instead of the two simultaneous arrows that go from the client 1 to client 2 and DHCP Relay Agent) that represent broadcasts. You can find the pulsing circles in Elise’s media piece titled, The Role of DHCP. The link to this media piece will be sent in an e-mail to you.
    Also, for printing purposes, could you please set the slide build to print the frame with all eight bullets, but no arrows?
  • Graphic Artist:
    For printing purposes, could you please set the slide build to print the last frame?
  • Graphic Artist:
    For printing purposes, could you please set the slide build to print the last frame?
  • Transcript

    • 1. Module 2: Allocating IP Addressing by Using Dynamic Host Configuration Protocol (DHCP)
    • 2. Overview Multimedia: The Role of DHCP in the Network Infrastructure Adding and Authorizing a DHCP Server Service Configuring a DHCP Scope Configuring a DHCP Reservation Configuring DHCP Options Configuring a DHCP Relay Agent
    • 3. Multimedia: The Role of DHCP in the Network Infrastructure The objective of this media is to provide a high-level overview of DHCP in the network infrastructure At the end of this presentation, you will be able to:  Explain what DHCP is  Describe how DHCP works  Explain how routers can forward DHCP broadcast packets  Describe how a DHCP relay agent works
    • 4. Lesson: Adding and Authorizing a DHCP Server Service Why Use DHCP? How DHCP Allocates IP Addresses How the DHCP Lease Generation Process Works How the DHCP Lease Renewal Process Works How to Add a DHCP Server Service How a DHCP Server Service Is Authorized How to Authorize a DHCP Server Service
    • 5. Why Use DHCP? DHCP reduces the complexity and amount of administrative work by using automatic TCP/IP configuration Manual TCP/IP Configuration Automatic TCP/IP Configuration IP addresses are entered manually on each client computer IP addresses are supplied automatically to client computers Possibility of entering incorrect or invalid IP address Ensures that clients always use correct configuration information Incorrect configuration can lead to communication and network issues Client configuration is updated automatically to reflect changes in network structure Administrative overload on networks where computers are frequently moved Eliminates a common source of network problems
    • 6. How DHCP Allocates IP Addresses DHCP Client2: IP configuration from DHCP server Non-DHCP Client: Static IP configuration Lease Renewal Lease Generation DHCP Server DHCP Client1: IP configuration from DHCP server DHCP Database IP Address1: Leased to DHCP Client1 IP Address2: Leased to DHCP Client2 IP Address3: Available to be leased
    • 7. How the DHCP Lease Generation Process Works DHCP Server2 DHCP Server1 DHCP Client 1 DHCP client broadcasts a DHCPDISCOVER packet 2 DHCP servers broadcast a DHCPOFFER packet 3 DHCP client broadcasts a DHCPREQUEST packet 4 DHCP Server1 broadcasts a DHCPACK packet
    • 8. How the DHCP Lease Renewal Process Works DHCP Server2 DHCP Server1 DHCP Client 87.5%of lease 100% of lease 50% of lease duration has expired If DHCP client sends a it’s lease, after 50% of the lease fails sends a DHCPREQUEST packet its lease, after packet 1 the clientClientto renewDHCPREQUEST87.5% of the lease has expired, then expired, then thegeneration process starts overwill duration has the DHCP lease DHCP lease renewal process again with a after 87.5% ofathe lease duration has expired 2 DHCP Server1 sendsbroadcasting packet begin again DHCP client DHCPACK a DHCPDISCOVER
    • 9. How to Add a DHCP Server Service Your instructor will demonstrate how to: Prepare to add a DHCP Server service Add a DHCP Server service
    • 10. How a DHCP Server Service Is Authorized Domain Controller If DHCP Server1 finds its the DHCP Server1 checks with IP address on the list, obtain a list domain controller to the service startsauthorized DHCP servers of and supports DHCP clients DHCP Server1 Authorized Active Directory Services DHCP requests DHCP Server2 DHCP Client Unauthorized IfDHCP client receivesnotaddress IP DHCP Server2 does with the DHCP Server2 checks find its DHCP client receives IP addressof domain controller DHCP Server1 addressauthorized to obtain a list on the list, the IP service does from authorized DHCP Server1 from and support DHCP clients authorized DHCP servers not start Does not service DHCP requests DHCP authorization is the process of registering the DHCP Server service in the Active Directory domain to support DHCP clients
    • 11. How to Authorize a DHCP Server Service Your instructor will demonstrate how to: Apply the requirement for authorizing a DHCP Server service Authorize a DHCP Server service
    • 12. Practice: Adding and Authorizing a DHCP Server Service In this practice, you will add and authorize a DHCP Server service
    • 13. Lesson: Configuring a DHCP Scope What Are DHCP Scopes? How to Configure a DHCP Scope
    • 14. What Are DHCP Scopes? A scope is a range of IP addresses that are available to be leased DHCP Server LAN A LAN B Scope A Scope B Scope Properties Network ID Subnet mask Network IP address range Lease duration Router Scope name Exclusion range
    • 15. How to Configure a DHCP Scope Your instructor will demonstrate how to: Configure a DHCP scope Activate a DHCP scope
    • 16. Practice: Configuring a DHCP Scope In this practice, you will configure a DHCP scope
    • 17. Lesson: Configuring a DHCP Reservation What Is a DHCP Reservation? How to Configure a DHCP Reservation
    • 18. What Is a DHCP Reservation? A reservation is a specific IP address, within a scope, that is permanently reserved for leased use to a specific DHCP client Workstation 1 Subnet A File and Print Server Subnet B DHCP Server IP Address1: Leased to Workstation 1 IP Address2: Leased to Workstation 2 IP Address3: Reserved for File and Print Server Workstation 2
    • 19. How to Configure a DHCP Reservation Your instructor will demonstrate how to: Configure a DHCP reservation Verify a DHCP reservation
    • 20. Practice: Configuring a DHCP Reservation In this practice, you will configure a DHCP reservation
    • 21. Lesson: Configuring DHCP Options What Are DHCP Options? How DHCP Server, Scope, and Reserved Client Options Are Applied How DHCP Class-level Options Are Applied How to Configure DHCP Options
    • 22. What Are DHCP Options? DHCP options are configuration parameters that a DHCP service assigns to clients along with the IP address and default gateway DHCP Client DHCP Client IP Configuration Data Client’s IP address Client’s subnet mask DHCP Server DHCP options such as:  Router’s IP address  DNS server’s IP address  WINS server’s IP address  DNS domain name
    • 23. How DHCP Server, Scope, and Reserved Client Options Are Applied DHCP Server File and Print Server Windows 98 Scope A Scope B Router Windows XP Windows XP DHCP option applied at the reserved-client level server level scope
    • 24. How DHCP Class-level Options Are Applied DHCP Server File and Print Server Windows 98 Router Router Scope A Scope B Windows XP Windows XP DHCP option applied at the class level
    • 25. How to Configure DHCP Options Your instructor will demonstrate how to: Configure a DHCP server option Configure a DHCP scope option
    • 26. Practice: Configuring DHCP Options In this practice, you will configure DHCP options
    • 27. Lesson: Configuring a DHCP Relay Agent What Is a DHCP Relay Agent? How a DHCP Relay Agent Works How a DHCP Relay Agent Uses Hop Count How a DHCP Relay Agent Uses Boot Threshold How to Configure a DHCP Relay Agent
    • 28. What Is a DHCP Relay Agent? A DHCP relay agent is a computer or router configured to listen for DHCP/BOOTP broadcasts from DHCP clients and then relay those messages to DCHP servers on different subnets DHCP Relay Agent DHCP Server Unicast Broadcast Broadcast Subnet A Subnet B Routers Non-RFC 1542 Compliant Client Client Client Client
    • 29. How a DHCP Relay Agent Works DHCP Relay Agent Client1 1 2 3 4 5 6 7 8 Client2 DHCP Server Router Non-RFC 1542 Compliant Client3 Client1 broadcasts a DHCPDISCOVER packet Relay agent forwards the DHCPDISCOVER message to the DHCP server Server sends a DHCPOFFER message to the DHCP relay agent Relay agent broadcasts the DHCPOFFER packet Client1 broadcasts a DHCPREQUEST packet Relay agent forwards the DHCPREQUEST message to the DHCP server Server sends a DHCPACK message to the DHCP relay agent Relay agent broadcasts the DHCPACK packet
    • 30. How a DHCP Relay Agent Uses Hop Count The hop count threshold is the number of routers that the packet can be transmitted through before being discarded DHCP Relay Agent 2 Hop Count = 2 DHCP Relay Agent 1 DHCP Server
    • 31. How a DHCP Relay Agent Uses Boot Threshold The boot threshold is the length of time in seconds that the DHCP Relay Agent will wait for a local DHCP server to respond to client requests before forwarding the request DHCP Server 2 Boot Threshold = 10 seconds DHCP Relay Agent Local DHCP Server DHCP Server 3
    • 32. How to Configure a DHCP Relay Agent Your instructor will demonstrate how to: Apply guidelines for setting the hop count and boot threshold Add a DHCP Relay Agent Configure a DHCP Relay Agent with the IP address of the DHCP server Enable the DHCP Relay Agent on a router interface
    • 33. Practice: Configuring the DHCP Relay Agent In this practice, you will configure a DHCP Relay Agent
    • 34. Lab A: Identifying and Resolving Common Issues When Allocating IP Addressing by Using DHCP In this lab, you will identify and resolve common issues when allocating IP addressing by using DHCP

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