Part 6: Managing Windows Server 2003 Networking and Print Services in C#.NET

Generating Quick Response Code in C#.NET Part 6: Managing Windows Server 2003 Networking and Print Services

Managing DHCP ing systems and could also include devices such as printers that can use dynamic IP addressing.

In Netsh, you can create a reservation by typing the following command:

where the following is true:

ServerID is the UNC name or IP address of the DHCP server on which you want to cre-

ate the scope, such as \\CORPSVR03 or \\192.168.1.1.

NetworkID is the network ID of the scope, such as 192.168.1.0. ReservedIP is the IP address you are reserving, such as 192.168.1.20. MacAddress is the MAC address of the client (excluding the dashes), such as

Name is the descriptive name of the reservation. Comment is the optional comment describing the reservation.

When you assign reservations, keep in mind that a client with an existing lease won t automatically use the reservation. If a client has a current lease, you must force the client to release that lease and then request a new one. If a client has an existing address and you want to force it to start using DHCP, you must force the client to stop using its current IP address and request a new IP address from DHCP. To force a client to release an existing lease or drop its current IP address, log on to the client, and type ipconfig /release at the command prompt. Next, if the client isn t already configured

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Microsoft Windows Server 2003 Inside Out to use DHCP, you must configure the client to use DHCP as discussed in the section entitled Configuring Dynamic IP Addressing on page 797. To get a client to request a new IP address from DHCP, log on to the client, and type ipconfig /renew at the command prompt.

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Scopes are available only when they are activated. If you want to make a scope available to clients, you must right-click it in the DHCP console and then select Activate. Activating a scope won t make clients switch to that scope. If you want to force clients to switch to a different scope or to use a different DHCP server, you can terminate the client leases in the DHCP console and then deactivate the scope the clients are currently using. To terminate a lease, you expand the scope you want to work with in the DHCP console and then select Address Leases. You will then see a list of current leases and can terminate a lease by right-clicking it and selecting Delete. The next time the client goes to renew its lease, the DHCP server will tell the client the lease is no longer valid and that a new one must be obtained. To prevent clients from reusing the original scope, you can deactivate that scope by rightclicking it in the DHCP console and then selecting Deactivate. You can perform these same actions using Netsh. To terminate a lease, type the following command:

where the following is true:

ServerID is the UNC name or IP address of the DHCP server on which you want to cre-

ate the scope, such as \\CORPSVR03 or \\192.168.1.1.

NetworkID is the network ID of the scope, such as 192.168.1.0. IPAddress is the IP address for the lease you want to remove, such as 192.168.1.8.

To activate or deactivate a scope, type the following:

where the following is true:

ServerID is the UNC name or IP address of the DHCP server on which you want to cre-

ate the scope, such as \\CORPSVR03 or \\192.168.1.1.

NetworkID is the network ID of the scope, such as 192.168.1.0. StateVal is set to 0 to deactivate the scope and 1 to activate it. If you are using a switched

network where multiple logical networks are hosted on a single physical network, use 2 to deactivate the scope and 3 to activate the scope.