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I have a general question about putting the DHCP role on SBS 2011 Essentials. I have it installed and enabled, everything is working fine. However, I've read a few questions on here and on a few other sites as well that say it is an unsupported configuration to have SBS Essentials utilize the DHCP role.

Why is this a bad thing, it seems to work fine, and I can't really see any caveats to installing this as an additional role?

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up vote 1 down vote accepted

This page seems to imply that the DHCP role is a core feature of Essentials and Standard:

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It's a bad thing because it's not supported.

I honestly have no idea why Microsoft doesn't support some things. They've got their reasons though, I'm sure. Sometimes it's to dictate what your business does with your technology (a reason I don't quite like, but they're in the position to do it). Sometimes it's because of conflicts with other roles. Sometimes it's because they don't know what future updates will do to that particular configuration.

I would recommend that you don't do anything that's not supported. Microsoft releases updates at least 2 times a month and there's no guarantee that they will test an unsupported configuration. 1 of these updates could easily hose your system and Microsoft will have little remorse because they told you so. Do you really want to try to explain that to your client or boss? I'm sure you don't, so act wisely and don't deploy a role you know to be unsupported.

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Please provide a link showing that it is unsupported. – KCotreau May 24 '11 at 21:18
This is good enough for me. It may not be good enough for you, but I err on the cautious side. I'd rather not do anything that I can't justify explaining to my clients later. – Jason Berg May 24 '11 at 21:25
Good enough...Thank you. – KCotreau May 24 '11 at 21:31
Well, I used the same above link to guide me through the migration process, and it does say that DHCP is not included with 2011 Essentials. But you can still install the role, and Microsoft's website also says that DHCP functionality is included on the "Compare Features" page between the two editions, but makes no mention of it being unsupported. – Alexander Miles May 25 '11 at 13:00

Using SBS Essentials with a DHCP role is supported. Here are instructions from the official SBS blog on how to do it: Running DHCP Server on SBS 2011 Essentials With a Static IP

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