[ Pobierz całość w formacie PDF ]
.Use an exclusion to make surethat a particular IP address is never assigned.For every subnet object that is created, two IP address objects areautomatically created.The two IP address objects are exclusions for theIP addresses of 0 and 255.These exclusions are created because someTCP/IP stacks do not support the assignment of 0 and 255 to nodes onthe network.Configuring a Subnet PoolObjectIn the past, a physical network segment could only be configured withone IP subnet address.Now, however, many TCP/IP protocol stacks,including Novell s, support the configuration of multiple IP subnetaddresses for a particular physical network segment.The subnet pool object in NDS allows you to assign multiple subnetobjects to service DHCP requests for a network segment that has morethan one IP subnet address configured on it.You can create a subnet pool object in the following container objects:Organization (O)Organizational Unit (OU)Country (C)Locality (L)7-23IG 7-46 This document should only be used by a Novell-certified instructor.Revision 1.0If you think this document was pirated, call 1-800-PIRATES or 1-801-861-7101. Using DNS/DHCP ServicesPresentation NotesConfiguring an IP Address Object(continued)s Continue demonstratinghow to configure an IPaddress object.Configuring a Subnet Pool ObjectIntroduce the subnet poolobject.Revision 1.0 This document should only be used by a Novell-certified instructor.IG 7-47If you think this document was pirated, call 1-800-PIRATES or 1-801-861-7101.Using DNS/DHCPServices NetWare 5 Advanced Administration Instructor GuideTo assign multiple subnet objects to service the same physical networksegment, do the following:1.Create a subnet pool object.a.In the toolbar, click the Create button.b.Click Subnet Pool.c.Click OK.d.In the Subnet Pool Name field, provide a name for the new subnetpool object.e.In the Select NDS Context field, enter or browse to the containerin which you want to create the new object.f.Click Create.2.Assign subnet objects to the subnet pool object.a.In the left window pane, click the subnet pool object you justcreated.b.In the subnet pool details window, click Add.c.In the Select Subnet dialog, select the subnet objects that youwant to assign to the subnet pool object; then click OK.d.When all the subnet objects you want to service a particularphysical network segment are assigned to the subnet pool object,click the Save Data to NDS button.e.When asked to verify the save, click Yes.7-24IG 7-48 This document should only be used by a Novell-certified instructor.Revision 1.0If you think this document was pirated, call 1-800-PIRATES or 1-801-861-7101. Using DNS/DHCP ServicesPresentation NotesConfiguring a Subnet Pool Object(continued)s Demonstrate how to createa subnet pool object.Revision 1.0 This document should only be used by a Novell-certified instructor.IG 7-49If you think this document was pirated, call 1-800-PIRATES or 1-801-861-7101.Using DNS/DHCPServices NetWare 5 Advanced Administration Instructor GuideStarting the DHCP ServerAfter you have created a DHCP server object and assigned it IPaddresses to service, you can load the DHCP software on the NetWareserver.Enter the following command at the server console prompt:DHCPSRVRWhen DHCPSRVR.NLM is loaded, it reads IP address configurationinformation from NDS and loads the information into the DHCP server scache.Configuring the Workstationfor DHCPAfter the DHCP server is running, you must configure your workstationso that it will make a request for an IP address from the DHCP server.To configure a workstation to obtain an IP address, complete thefollowing at your workstation:1.Configure the TCP/IP protocol stack for DHCP services.a.On your desktop, right-click Network Neighborhood.b.Click Properties.c.If you are on a Windows NT machine, click the Protocols tab.d.Click the TCP/IP protocol.e.Click Properties.f.If you are on a Windows NT machine, click Obtain an IP addressfrom a DHCP server.g.If you are on a Windows 95 machine, click Obtain an IP addressautomatically.h.If you previously had an IP address that was configured manuallyand you are asked if you want to enable DHCP, click Yes.i.To close the TCP/IP Properties window, click OK.j.To close the NetWork Properties window, click OK.2.Reboot the workstation.It will obtain an IP address from a DHCPserver.7-25IG 7-50 This document should only be used by a Novell-certified instructor.Revision 1.0If you think this document was pirated, call 1-800-PIRATES or 1-801-861-7101. Using DNS/DHCP ServicesPresentation NotesStarting the DHCP Servers Demonstrate how to startthe DHCP server.Configuring the Workstation forDHCPs Demonstrate how toconfigure a workstation torequest an IP address froma DHCP server.Revision 1.0 This document should only be used by a Novell-certified instructor.IG 7-51If you think this document was pirated, call 1-800-PIRATES or 1-801-861-7101.Using DNS/DHCPServices NetWare 5 Advanced Administration Instructor GuideConfiguring DHCPOptionsYou can configure two types of DHCP options in the DNS/DHCPManagement Console.The first type of DHCP option is used to configure administrationfeatures provided as part of Novell s implementation of DHCP.Thesefeatures are provided by Novell to ease the administration of DHCP.Administrative options are configurable as part of the DHCP Server andDHCP subnet objects in the DNS/DHCP Management Console.For example, you can configure the DHCP server to ping an IP addressit is about to assign to make sure that the address is not already in use.The other type of DHCP option is used to deliver configurationinformation to workstations on your network.DHCP specificationsprovide a framework for delivering configuration parameters, other thanIP addresses, to hosts on your network.For example, you can use DHCP options to provide your workstationswith Domain Name Server, Router, Preferred Server, and NDS contextinformation.You can even define your own DHCP options to delivercustom parameters to your clients.For more information regarding DHCP options, see DHCP Options inb the Novell DNS/DHCP Services Administrator s Guide.DHCP options that deliver parameters to workstations can be configuredso that they apply globally or only to a particular subnet.If the sameDHCP option is set for both levels, the value set at the lower level will bethe value assigned to the workstation.For example, if you define the global Domain Name Server option as137.65.1.1 and make another Domain Name Server option assignmentof 137.65.10.1 for the subnet 137.65.10.0, workstations on the137.65.10.0 subnet will have their Domain Name Server parameter setto 137.65.10.1.7-26IG 7-52 This document should only be used by a Novell-certified instructor.Revision 1 [ Pobierz całość w formacie PDF ]