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Question
Wednesday, February 20, 2013 8:55 AM
Hi,
Are there any known issues with using DHCP server (Windows Server 2008 R2) with two NIC's to serve clients from different network ranges? I know I could use IP Helper on a router (which I do for remote sites), but I would like to do without one on the local network. Additionally, the previous (Novell) DHCP server was setup this way.
Server NIC's
-NIC1: 192.168.1.1/24 with Gateway 192.168.1.254
-NIC2: 10.10.1.1/24 with Gateway 10.10.1.254
Scopes:
- 192.168.1.10-100/24
- 192.168.2.10-100/24 (remote site using IP helper)
- 10.10.1.10-100/24
Thanks for your help.
/Lakend
All replies (2)
Thursday, February 21, 2013 5:28 PM ✅Answered | 1 vote
Hi Lakend,
Firstly, please feel free to run a multihomed DHCP Server. I do also have a multihomed DHCP Server in my lab, and it works properly.
And, FYI
Design Option 4: Multihomed DHCP Servers
Multihomed DHCP server does not allocate IP addresses
Multihomed DHCP Server Assigns Duplicate IP Addresses
However, I notice that you have multiple default gateway configured. To avoid issues, please make sure that you have set correct metric for the two interfaces.
Related references:
An explanation of the Automatic Metric feature for Internet Protocol routes
Multiple Default Gateways Can Cause Connectivity Problems
Default Gateway Configuration for Multihomed Computers
Hope this helps.
Jeremy Wu
TechNet Community Support
Thursday, February 21, 2013 8:11 PM ✅Answered
There is no problem running a multi-homed DHCP server. You have to make sure that the DHCP service is bound to the multiple NICs. You do this from the DHCP Admin console. One downside to this is that you are limited to the number of NICs you can install on the server.
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