Installing and Configuring a DHCP on Windows Server 2016 Step by Step PDF

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Installing and Configuring a DHCP Server on Windows 2016 Complete Lab (V1.0)

Ahmed Abdelwahed Microsoft Certified Trainer [email protected]

Installing and Configuring a DHCP Server on Windows 2016

Contents Lab Objective ............................................................................................................................................................................. 3 Install DHCP role ........................................................................................................................................................................ 3 DHCP Post Installation Configuration.................................................................................................................................... 6 DHCP Authorization........................................................................................................................................................... 6 Configuring DHCP ...................................................................................................................................................................... 9 Create and configure new scope........................................................................................................................................... 9 Test DHCP functionality from Windows Client (Windows 10) ............................................................................................ 14 How DHCP client obtain automatic IP address (DORA)...................................................................................................14 DHCP Scope Options ...............................................................................................................................................................15 Address leases ..................................................................................................................................................................... 15 DHCP Exclusion.................................................................................................................................................................... 15 DHCP Reservation................................................................................................................................................................ 16 DHCP Filter ..........................................................................................................................................................................18 Scope and Server options .................................................................................................................................................... 19 DHCP Classes ....................................................................................................................................................................... 21 Testing DHCP Class .............................................................................................................................................................. 26 DHCP Statistics .................................................................................................................................................................... 27 DHCP Advanced Options ......................................................................................................................................................... 29 Integration with DNS ........................................................................................................................................................... 29 Conflict detection ................................................................................................................................................................ 30 DHCP Maintenance ................................................................................................................................................................. 31

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Installing and Configuring a DHCP Server on Windows 2016

Lab Objective Dynamic Host Configuration Protocol (DHCP) automatically provide TCP/IP configuration including IP address, subnet mask, DG, DNS server and other parameters. This lab provides the required knowledge to install and manage the DHCP Server.

Install DHCP role We can install DHCP server role through server manager then add roles or from the PowerShell, follow all the instructions in the figures below: -

First option from PowerS PowerShell hell

-

Second from Serve Serverr Ma Manage nage nagerr

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Installing and Configuring a DHCP Server on Windows 2016

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Installing and Configuring a DHCP Server on Windows 2016

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Installing and Configuring a DHCP Server on Windows 2016

DHCP Post Installation Configuration

DHCP Authorization http://www.mycertprofile.com/Profile/3992184764

Installing and Configuring a DHCP Server on Windows 2016 DHCP must be authorized in Active Directory to lease IP addresses to DHCP clients, this process done by domain admin account.

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Installing and Configuring a DHCP Server on Windows 2016

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Installing and Configuring a DHCP Server on Windows 2016

Configuring DHCP Create and configure new scope DHCP scope, is a valid range of IP addresses that DHCP server lease to clients, to add and configure scope options follow instructions as explained in the figures below. Run dhcpmgmt.msc to access DHCP wizard.

Note: you can change IP address range after scope created, but can’t ever change subnet mask. http://www.mycertprofile.com/Profile/3992184764

Installing and Configuring a DHCP Server on Windows 2016

Exclusions, you can remove an IP address or range of IP addresses from the pool of addresses that DHCP server leased, so you can assign it in static way.

By default, DHCP leases set to 8 days, you can increase or decrease it according your requirement.

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Installing and Configuring a DHCP Server on Windows 2016 Configure most common DHCP options, also you can do it later.

Configure default gateway (DG) to obtained by DHCP.

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Installing and Configuring a DHCP Server on Windows 2016 Select DNS server to obtained by DHCP (in our scenario we have domain (DNS Server) named itpro itprolab lab labs.xy s.xy s.xyzz) which have two DNS servers 192.168.153.10 and 192.168.153.9

If you have WINs Server, you can add it here.

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Installing and Configuring a DHCP Server on Windows 2016 Acti Activate vate your scope with options we configured, or you can activate later.

Your configuration successfu successfully lly DON DONE E, and DHCP ready to response to DHCP clients.

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Installing and Configuring a DHCP Server on Windows 2016 Test DHCP functionality from Windows Client (Windows 10)

How DHCP client obtain automatic IP address (DORA) 1- DHC DHCPDis PDis PDisco co cover ver ver, DHCP client send broadcast message to the network to detect the DHCP server. 2- DHC DHCPO PO POffer ffer ffer, DHCP server which receive the Discover message also send broadcast message to DHCP client that send the discover message to Offer TCP/IP configuration. 3- DHC DHCPR PR PReque eque equest st st, DHCP client broadcast request that contain accept for offered TCP/IP configuration. 4- DHC DHCPAC PAC PACK K, DHCP server replay broadcast with acknowledging client that now you have TCP/IP configuration with lease duration. After 50 50% % of lease time client reques requestt DHCP server un unicas icas icastt to renew its lease duration, if the sever are available, the server will response to the client with unic unicast ast DHC DHCPAc PAc PAckk and renew its lease time. If there is anetwork connectivity problem between DHCp Server and client, the DHCP client will try again to contact the DHCP server at 87.5% of lease time for renewal but at this point the process go broadcast starting from DH DHCPRe CPRe CPReque que quest st st. If still there are a network connectivity between DHCP server and its client the sever will lease the client configuration to another client

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Installing and Configuring a DHCP Server on Windows 2016

DHCP Scope Options Address leases Address leases tab show you computers that obtained TCP/IP configuration from DHCP server, with information about lease expiration and clients MAC addresses.

DHCP Exclusion as we have mentioned earlier, we can exclude IP or rang from DHCP scope leases here is we can configure this option from this tab, also in this tab we will see DHCP scope rang, as explained in the figures below

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Installing and Configuring a DHCP Server on Windows 2016 Exclude range from 192.168.153.100 – 192.168.153.110

DHCP Reservation You can reserve specific IP address to specific client by assign specific IP to client MAC address, it is useful when you are setting up network devices such as printers, network storage, or server.

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Installing and Configuring a DHCP Server on Windows 2016

Also, you can reserve IP address to leased computer or network device, as explained in the figure below.

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Installing and Configuring a DHCP Server on Windows 2016 DHCP Filter You can force DHCP to only response to specific clients by adding MAC addresses to allow list filter, also, you can deny any DHCP client request from specific computers by adding MAC addresses to deny list filter.

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Installing and Configuring a DHCP Server on Windows 2016

No Note te te: by default, allow and deny lists are disabled, if you enable allow list DHCP only response to client in this list. Scope and Server options Here is we can configure or change configured scope and server option, like DNS and default gateway, scope option is applied on specific scope and server option is applied to all scopes under the DHCP server. In this example, we will change default gateway in both scope and server option. No Note te te: if there is a conflict between scope and server option, scope option will be applied (most restrictive)

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Installing and Configuring a DHCP Server on Windows 2016

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Installing and Configuring a DHCP Server on Windows 2016

DHCP Classes Provide a way to configure specific clients with different or separate parameters (DNS, GW. ….), There are three types of classes: 1- De Default fault Clas Classs, created automatic with DHCP installation and all clients by default are configured as

the default class clients. Vendor or C Clas las lasss, created manually, it provides a different TCP/IP configuration to the DHCP client 2- Vend computers, based on vendor for example I need to configure different options like DNS or GW to all computers that running windows 10 or all Dell computers. 3- Use Userr Clas Classs, created manually, it provides a different TCP/IP configuration to the DHCP client computers In our scenario, default DHCP DNS parameter 192.168.153.9 which distributed to default class, now we will add DHCP user Class named managers to provide different 192.168.153.10 DNS to members of this class, to configure this option as explained in the figures below, two-steps required first one is to create DH DHCP CP U User ser cclass lass lass, next to apply DHCP po polic lic licyy to provide different DNS server (192.168.153.10) to Manager class.

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Installing and Configuring a DHCP Server on Windows 2016

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Installing and Configuring a DHCP Server on Windows 2016

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Installing and Configuring a DHCP Server on Windows 2016

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Installing and Configuring a DHCP Server on Windows 2016

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Installing and Configuring a DHCP Server on Windows 2016 Testing DHCP Class - Run ipco ipconfig nfig //all all to the client that have default class, then assign the client network card to the Managers class by applying the following command ipconfig /se /setclas tclas tclassid sid “e “ethe the therne rne rnet0” t0” Man Manage age agers rs rs, after that test or verify changes by running ipconfi ipconfigg //all all No Note te te: ethernet0 is the network card name, change it according to client network card name

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Installing and Configuring a DHCP Server on Windows 2016 -

To back client again to default class, remove Managers class by running this command, ipconfi ipconfigg /se setclas tclas tclassid sid ““ethe ethe etherne rne rnet0” t0” no

DHCP Statistics Here is you will get some important statistics like number of leased IP addresses and available address pool. http://www.mycertprofile.com/Profile/3992184764

Installing and Configuring a DHCP Server on Windows 2016

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Installing and Configuring a DHCP Server on Windows 2016

DHCP Advanced Options Integration with DNS When the client obtains IP address from the DHCP server there is an option to allow DHCP to add A DNS record for this client in DNS server.

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Installing and Configuring a DHCP Server on Windows 2016 Conflict detection There is an option to allow DHCP server to trying to detect IP address conflict before it leased to client

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Installing and Configuring a DHCP Server on Windows 2016

DHCP Maintenance Here are some regular and important maintenance tasks, like, backup and restore to another server, stop and restart DHCP service also if you want to unauthorize your server.

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