c# printing barcode Configuring DHCP Servers and Clients in Visual Studio .NET

Printing QR in Visual Studio .NET Configuring DHCP Servers and Clients

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Configuring DHCP Servers and Clients
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options except for DNS options. To configure the client to receive DNS options from the DHCP server, select the Obtain DNS Server Address Automatically option. If you are migrating the client from a statically assigned address, you can apply the new configuration simply by closing the open dialog boxes.
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If a client has already been configured to obtain an IP address and DNS server address automatically, and the network is not using ICS, you merely need to renew the IP configuration to apply the settings from the newly configured DHCP server. To renew a configuration, enter the ipconfig /renew command at the command prompt. Alternatively, you can restart the client computer, and the new IP configura tion is applied as the computer reboots.
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Migrating from an ICS Connection
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ICS is a shared dial-up connection on a server that provides Internet access to network clients and automatically configures client computers with an address in the 192.168.0.x subnet range. Because this service competes with the DHCP Server service, you should delete any shared (ICS-enabled) dial-up connections on the server and restart the server computer before installing the DHCP Windows component or adding the DHCP Server role.
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ICS clients are already configured to obtain an IP address automatically, so in the ory, they require no reconfiguration beyond a simple reboot if you want to migrate to DHCP. However, you might find that in practice, ICS clients stubbornly cling to their ICS addresses even after DHCP is deployed. To prevent such complications, you can first apply a manual (static) address to the client computers after the ICS connection is deleted; this procedure breaks the ICS connection. Then restart the client computers. After the clients restart, they will migrate cleanly to DHCP as soon as you reconfigure them to obtain an address automatically. After the DHCP server is installed and configured, you can apply the new automatic configuration to the client as you would to any statically configured client by selecting the Obtain An IP Address Automatically option and (optionally) the Obtain DNS Server Address Automatically option in the Internet Protocol (TCP/IP) Properties dialog box.
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Lesson 1
Configuring the DHCP Server
7-15
Verifying the Configuration
After you configure your DHCP server, and after you have authorized the server and activated the scope, you need to verify that the service is working on your client com puters. Restart your DHCP client computers (or use Ipconfig /renew) and then enter the ipconfig /all command at the command prompt. With the /all switch, the Ipconfig command displays all of the parameters you have configured for the lease, including DHCP options.
You can assign users to the domain local security group DHCP Users if you want to allow them to read DHCP information without being able to manage or modify this data.
Practice: Installing and Configuring a DHCP Server
In this practice, you install and configure a new DHCP server. Because the twocomputer configuration currently uses ICS, which uses its own version of DHCP, you must first delete the shared dial-up connection and restart both computers before pro ceeding with the DHCP server installation. This precaution prevents the two services from conflicting with one another.
Important
This practice assumes that you have deployed ICS through a dial-up connection. If instead you are using another type of Internet connection, you will need to make whatever adjustments are required to deploy a DHCP server on your test network.
Exercise 1: Deleting the ICS-Enabled Connection
ICS provides its own addressing service that conflicts with the addressing service pro vided by a DHCP server. In this exercise, you delete ICS to prepare for the installation of a DHCP server. 1. From Computer1, log on to Domain1 as Administrator. 2. Open the Network Connections window and disconnect the MyISP connection if it is not already disconnected. 3. Right-click MyISP, and then select Delete. The Confirm Connection Delete message box opens, asking you to confirm the deletion. 4. Click Yes. 5. Restart Computer1.
7-16
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