How do I configure DHCP relay with Windows 2008?

windows2008 Configuring DHCP relay

In the learning process of network construction, we will encounter a situation where the server is used as a switch or router to configure the DHCP server. So here we explain the contents of the DHCP relay configuration. We can use the DHCP server to assign the IP address to the machine inside the LAN, in general, the DHCP server is inside the LAN, but sometimes the DHCP server may not be on the local LAN, then we need to configure DHCP relay.

Environment: A server for a domain environment (2008), a common workgroup server (2008), two clients ――windows Xp,windows 7

Purpose: Assign IP addresses of different network segments to two clients

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A. Building DHCP Services
Operation steps:

1. Configure a static IP address for the server: 192.168.10.1, then open Server Manager, click Roles in the left window, and then add roles to the right of the stand-alone

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3. 
   

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2. In the Select Server roles interface, select DHCP Server, and then click Next.

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3, in the "Select Network connection Binding" interface, you can see the IP address of the machine, directly click "Next"

4. In the "Specify IPv4 WINS server Settings" screen, select "The application on this network does not require wins (W)" and then click "Next".

5, in the "Specify IPV4 DNS server Settings" interface, by default directly click "Next".

6, in the "Add or edit DHCP scope" screen, do not make any settings, directly click "Next".

7. In the Configure DHCPV6 stateless mode interface, select Disable DHCPV6 stateless mode for this server, and then tap Next.

8. In the "Authorize DHCP Server" screen, click "Next".
9. In the "Confirm Installation Selection" screen, confirm the installation information and click "Install".

10, "Start" → "Administrative Tools" → Open the "DHCP" management console.

11. Expand the left node, right-click "IPv4" and select "New Scope" in the pop-up menu. ：

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12, in the "Role Domain Name" interface, enter a name and description, click "Next".

13. In the "IP address range" interface, enter the range of addresses assigned to this scope and click "Next".

14. In the "Add exclusion" screen, enter the range of IP addresses to exclude, click "Add", then "next."

15, in the "Lease term" interface, the default settings, direct "Next".

16. In the "Configure DHCP Options" screen, select "No, I want to configure these options later" and then "next".

17, the new success.

18. Open the DHCP Management console again to expand the new scope, which is not active at this time. Right-click the new scope, and in the pop-up menu, select Activate. ：

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19, then repeat the above steps, and then create a new scope of a different network segment, and activation.

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Two Trunking on an ordinary 2008 server
Steps:

1. To the normal workgroup server add two network card (a total of three), set the IP address of network card 1 is: 192.168.1.10, set the IP address of network card 2 is: 192.168.2.10, set the IP address of network card 3 is: 192.168.3.10,: (Here use a windows2008 as a router, enabling relaying on top)

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2. Open the Server Manager of the normal 2008 server, click "Role" in the left window, then click "Add Role" on the right.

3. In the Select Server roles interface, select Network Policy and Access server, and then tap Next.

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4. In the Select Role Services interface, select Routing and Remote Access service, and then next. ：

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5, after the installation, click" Start "-" Administrative Tools "-open" Routing and Remote Access ".

6, in the Routing and Remote Access management console, right-click the server name, and in the pop-up menu, select Configure and Enable Routing and Remote Access. :
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7. In the" Welcome To Install Wizard "screen, click" Next ".

8, in the Configuration interface, select the custom configuration interface, and then click Next.

9, in the custom configuration interface, select LAN routing, and then next.

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10, confirm the installation of new interest, click" Done ".

11, after clicking Finish, the Start service window pops up and the Start Service button is clicked.

12, expand the left Window node, right-click general, and in the pop-up menu, select New Routing protocol. :

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13, in the" New Routing Protocol "interface, select" DHCP Relay Agent "and click" OK ".

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14, right-click "DHCP Relay Agent", in the pop-up menu, select "New Interface". ：

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15, add "local connection", "Local Connection 2" and "Local connection 3" Three network cards in "New Interface" interface, then click "OK". ：

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16. In the "Routing and Remote Access" interface, right-click on "DHCP Relay Agent" and in the popup menu, select "Properties".

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17. In the "DHCP Routing and Remote Access Properties" interface, enter the IP address of the DHCP server and click "Add". ：

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18, because the repeater has the function of routing, So the default gateway for the DHCP server is to enter the IP address of the repeater (same segment):
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19, to determine the DHCP server, repeater, Whether the NICs between the clients are bridged correctly. (The DHCP server and Repeater bridge the NIC 1, the two clients bridge the Repeater's Nic 2 and Nic 3 respectively.)

20, and then in the Command Prompt window of the client Windows XP, enter the command first: "Ipconfig/release" and release the IP address. Re-enter the command: "Ipconfig/renew" to get the new IP address. :

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21, in the Command prompt window of the client Windows 7, also enter the command first:" ipconfig /release "to release the IP address, and then enter the command:" Ipconfig/renew "to obtain the new IP address. :

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Note: In the two clients can get to different network segment IP address, it means that the Repeater build success!!!

This article is from the "Network" blog, be sure to keep this source http://18611537840.blog.51cto.com/13004230/1939151

How do I configure DHCP relay with Windows 2008?