1. (ITI310) By Eng. BASSEM ALSAID SESSIONS 9: Dynamic Host Configuration Protocol (DHCP)

2. “Dynamic Host Configuration Protocol (DHCP)” objectives in this session: -Installing the DHCP Server Role. -Authorizing DHCP Servers in Active Directory. -Understanding DHCP Scope Types. -Configuring IPv4 Scopes Using the DHCP Console. -Configuring DHCP Reservations.

3. “Dynamic Host Configuration Protocol (DHCP)” The purpose of Dynamic Host Configuration Protocol (DHCP) is to provide TCP/IP configuration information to clients. A DHCP server within a Windows Server 2008 domain will typically provide the following information to clients: IP address Subnet mask Default gateway DNS domain name Address of DNS server Address of WINS server And possibly more information.

4. REMINDER DORA process: (D)iscover DHCP (O)ffer DHCP (R)equest DHCP (A)ck

5. Practice I: Installing DHCP

6. DHCP Scope Types DHCP scopes are used to define ranges of addresses from which a DHCP server can assign IP addresses to clients. Scopes fall into Normal, Multicast and Super Scope categories as follows: Normal Scope - Allows A, B and C Class IP address ranges to be specified including subnet masks, exclusions and reservations. Multicast Scope - Used to assign IP address ranges for Class D networks. Multicast scopes do not have subnet masks, reservation or other TCP/IP options. Multicast scope address ranges require that a Time To Live (TTL) value be specified (essentially the number of routers a packet can pass through on the way to its destination). Super Scope - Essentially a collection of scopes grouped together such that they can be enabled and disabled as a single entity.

7. CLASS D networks Class D: 224.0.0.0 to 239.255.255.255 The IPv4 networking standard defines Class D addresses as reserved for multicast. Multicast is a mechanism for defining groups of nodes and sending IP messages to that group rather than to every node on the LAN (broadcast) or just one other node (unicast).

9. Practice II: Creating a DHCP Scope

10. DHCP Reservation DHCP reservations provide a mechanism by which IP addresses may be permanently assigned to a specific client based on the MAC address of that client.

11. DHCP Management When planning for the management of DHCP, you need to consider two built-in groups. Both groups are in the Users container within Active Directory Users and Computers. They are as follows: DHCP Administrators: Users in the DHCP Administrators group can fully administer DHCP with one exception. DHCP Administrators cannot authorize a DHCP server. DHCP administrators can create and modify scopes, add and modify options, add scope options, and add and modify reservations. If an administrator is assigned responsibility for a DHCP, he should be added to the DHCP Administrators group. DHCP Users: The DHCP Users group can view but not modify settings and information within the DHCP console.

12. You have a Windows Server 2008 Core loaded on a server. You just installed DHCP on the server. How do you configure the DHCP scopes? A. Run the script dhcp.wsf. B. Modify the C:\windows\system32\etc\hosts file with Notepad. C. Connect to the DHCP server with a DHCP MMC console that connects to the DHCP server. D. You don’t need to configure DHCP because it is self configuring. EXERCISE I

13. NEXT SESSION C7: SATURDAY 27-Jun-2015 12:00 C8: SATURDAY 27-Jun-2015 12:00 Title: “Internet Information Server (IIS)” THANKS