1. Automating IP Address Assignment Ing. Iván Méndez Alvarado RAI TECNOLOGIA SU SOLUCION INTEGRAL

2. Overview 1.Overview of DHCPOverview of DHCP 2.Installing the DHCP ServiceInstalling the DHCP Service 3.Authorizing the DHCP ServiceAuthorizing the DHCP Service 4.Creating and Configuring a ScopeCreating and Configuring a Scope RAI TECNOLOGIA SU SOLUCION INTEGRAL

3. 1.Overview of DHCP 1.1. Connecting to a Microsoft Network Connecting to a Microsoft NetworkConnecting to a Microsoft Network 1.2. Manual vs. Automatic TCP/IP Configuration Manual vs. Automatic TCP/IP ConfigurationManual vs. Automatic TCP/IP Configuration 1.3. DHCP Operation DHCP OperationDHCP Operation 1.4. The DHCP Lease Generation Process The DHCP Lease Generation ProcessThe DHCP Lease Generation Process 1.5. The DHCP Lease Renewal Process The DHCP Lease Renewal ProcessThe DHCP Lease Renewal Process 1.6. Requirements for DHCP Servers and Clients Requirements for DHCP Servers and ClientsRequirements for DHCP Servers and Clients RAI TECNOLOGIA SU SOLUCION INTEGRAL

4. 1.1. Connecting to a Microsoft Network Installing TCP/IP for Connectivity Within a Microsoft Network Configuring TCP/IP to Use a Static IP Address Configuring TCP/IP to Obtain an IP Address Automatically RAI TECNOLOGIA SU SOLUCION INTEGRAL

5. Installing TCP/IP for Connectivity Within a Microsoft Network Select Network Protocol Click the Network Protocol that you want to install, then click OK. If you have an installation disk for this component, click Have Disk. Network Protocol: AppleTalk Protocol DLC Protocol Internet Protocol (TCP/IP) NetBEUI Protocol Network Monitor Driver NWLink IPX/SPX/NetBIOS Compatible Transport Protocol OSI-LAN Protocol Have Disk... OK Cancel Internet Protocol (TCP/IP) Windows 2000 Default Protocol RAI TECNOLOGIA SU SOLUCION INTEGRAL

6. Configuring TCP/IP to Use a Static IP Address Internet Protocol (TCP/IP) Settings General You can get IP settings assigned automatically if your network supports this capability. Otherwise, you need to ask your network administrator for the appropriate IP settings. Obtain an IP address automatically Use the following IP address: IP address: Subnet mask: Default gateway: Use the following DNS server address: Preferred DNS server: Alternate DNS server: Obtain DNS server address automatically OKCancel Advanced... RAI TECNOLOGIA SU SOLUCION INTEGRAL

7. Configuring TCP/IP to Obtain an IP Address Automatically Assign IP address of 192.168.120.133 Assign IP address of 192.168.120.133 DHCP ClientDHCP Server Request for IP address Request for IP address DHCP Automatically Assigns IP Addresses and Other Configuration Information to DHCP Clients Automatic Private IP Addressing Enables the Configuration of IP Addresses Without Using Static IP Addresses or Installing the DHCP Server Service. Automatic Private IP Addressing Generates IP Address Automatic Private IP Addressing Generates IP Address If No IP Address Returned OR RAI TECNOLOGIA SU SOLUCION INTEGRAL

8. 1.2. Manual vs. Automatic TCP/IP Configuration Disadvantages Manual TCP/IP Configuration Automatic TCP/IP Configuration Advantages IP addresses entered manually on each client computer Possibility of entering incorrect or invalid IP address Incorrect configuration can lead to communication and network problems Administrative overload on networks where computers are frequently moved IP addresses are supplied automatically to client computers Ensures that clients always use correct configuration information Elimination of common source of network problems Client configuration updated automatically to reflect changes in network structure RAI TECNOLOGIA SU SOLUCION INTEGRAL

9. 1.3. DHCP Operation IP Address1 IP Address2 IP Address3 DHCP Database IP Address2 IP Address1 DHCP Client: IP configuration from DHCP server DHCP Server Non-DHCP Client: static IP configuration DHCP Client: IP configuration from DHCP server RAI TECNOLOGIA SU SOLUCION INTEGRAL

10. 1.4. The DHCP Lease Generation Process DHCP ServersDHCP Client 11 IP Lease Request 33 IP Lease Selection 22 IP Lease Offer 44 IP Lease Acknowledgement RAI TECNOLOGIA SU SOLUCION INTEGRAL

11. 1.5. The DHCP Lease Renewal Process DHCPREQUESTDHCPREQUEST Source IP Address = 192.168.0.77 Dest. IP Address = 192.168.0.108 Requested IP Address = 192.168.0.77 Hardware Address = 08004.... Source IP Address = 192.168.0.77 Dest. IP Address = 192.168.0.108 Requested IP Address = 192.168.0.77 Hardware Address = 08004.... DHCPACK Source IP Address = 192.168.0.108 Dest. IP Address = 192.168.0.77 Offered IP Address = 192.168.0.77 Client Hardware Address = 08004... Subnet Mask = 255.255.255.0 Length of Lease = 8 days Server Identifier = 192.168.0.108 DHCP Option: Router = 192.168.0.1 Source IP Address = 192.168.0.108 Dest. IP Address = 192.168.0.77 Offered IP Address = 192.168.0.77 Client Hardware Address = 08004... Subnet Mask = 255.255.255.0 Length of Lease = 8 days Server Identifier = 192.168.0.108 DHCP Option: Router = 192.168.0.1 DHCP ClientDHCP Server RAI TECNOLOGIA SU SOLUCION INTEGRAL

12. 1.6. Requirements for DHCP Servers and Clients DHCP Server Requirements (Windows 2000 Server) The DHCP service Static IP address, subnet mask, default gateway Range of valid IP addresses DHCP Clients Windows 2000 Professional or Windows 2000 Server Windows NT Server or Workstation 3.51 or later Windows 95 or Windows 98 Windows for Workgroups 3.11, running TCP/IP-32 Microsoft Network Client 3.0 for MS-DOS LAN Manager 2.2c Non-Microsoft operating systems RAI TECNOLOGIA SU SOLUCION INTEGRAL

13. 2. Installing the DHCP Service Networking Services To add or remove a component, click the check box. A shaded box means that only part of the component will be installed. To see what’s included in a component, click Details. Subcomponents of Networking Services: 0.8 MB Description: Total disk space required: Space available on disk: 0.9 MB 912.4 MB Details... OKCancel Enables a network connected to the Internet to automatically assign a temporary IP address to a host when the host connects to the network. COM Internet Services Proxy 0.0 MB Domain Name System (DNS) 0.0 MB Dynamic Host Configuration Protocol (DHCP) 0.0 MB Internet Authentication Service 0.0 MB QoS Admission Control Service0.0 MB Simple TCP/IP Services0.0 MB Site Server LDAP Services1.8 MB RAI TECNOLOGIA SU SOLUCION INTEGRAL

14. 3. Authorizing the DHCP Service If unauthorized, the service logs an error and will not respond to clients If authorized, the service starts properly DHCP Service Checks For Authorization ClientsDHCP Server Domain Controller/ DHCP server DHCP Server RAI TECNOLOGIA SU SOLUCION INTEGRAL

15. Lab A: Creating and Authorizing a DHCP Server RAI TECNOLOGIA SU SOLUCION INTEGRAL

16. 4. Creating and Configuring a Scope 4.1. Overview of ScopesOverview of Scopes 4.2. Using The New Scope WizardUsing The New Scope Wizard 4.3. Configuring a Scope with OptionsConfiguring a Scope with Options 4.4. Customizing the Use of Scope OptionsCustomizing the Use of Scope Options 4.5. Reserving IP Addresses for Client ComputersReserving IP Addresses for Client Computers RAI TECNOLOGIA SU SOLUCION INTEGRAL

17. 4.1. Overview of Scopes ScopeScope 192.168.1.0 192.168.1.1 192.168.1.2 192.168.1.3 192.168.1.4 IP Addresses Available for Lease to Client Computers DHCP Server RAI TECNOLOGIA SU SOLUCION INTEGRAL

18. 4.2. Using the New Scope Wizard You use the New Scope Wizard to: Configure scope parameters Change the default lease duration Activate a scope RAI TECNOLOGIA SU SOLUCION INTEGRAL

19. 4.3. Configuring a Scope with Options Scope Options Supported by DHCP Include: IP Address of a Router IP Address of a DNS Server DNS Domain Name IP Address of a WINS Server Type of NetBIOS over TCP/IP Name Resolution RAI TECNOLOGIA SU SOLUCION INTEGRAL

20. 4.4. Customizing the Use of Scope Options Scope Options Reserved Client Level Server Level Scope Level Class Level RAI TECNOLOGIA SU SOLUCION INTEGRAL

21. 4.5. Reserving IP Addresses for Client Computers New Reservation Provide information for a reserved client. Reservation name: IP address: MAC address: Description: Supported types Both DHCP only BOOTP only AddClose Stuttgart Server 192. 168. 1. 201 DHCP Reservation for Server 00a024e2b01a RAI TECNOLOGIA SU SOLUCION INTEGRAL

22. Lab B: Configuring a DHCP Scope RAI TECNOLOGIA SU SOLUCION INTEGRAL