Is it okay to reserve an IP outside DHCP scope on Server 2019?

MISAdmin 381 Reputation points
2021-08-13T14:57:49.93+00:00

I have DHCP running on Server 2019. I would like to reserve some IPs outside the scope range. For example, Scope range is 192.168.5.100 to 192.168.5.200. I want to reserve 192.168.5.70 thru .99 to certain devices. I tried it with my device and it is working. I'm just curious if it is okay to do this.

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A set of directory-based technologies included in Windows Server.
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Windows DHCP
Windows: A family of Microsoft operating systems that run across personal computers, tablets, laptops, phones, internet of things devices, self-contained mixed reality headsets, large collaboration screens, and other devices.DHCP: Dynamic Host Configuration Protocol (DHCP). A communications protocol that lets network administrators manage centrally and automate the assignment of Internet Protocol (IP) addresses in an organization's network.
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  1. MISAdmin 381 Reputation points
    2021-08-20T11:22:59.697+00:00

    I worked on this some more. The error occurs when I delete an existing reservation... before I add the new one. It doesn't matter which member of the failover I delete from. It happens at this time only. I didn't want to de-configure the scope and risk not being able to re-configure it. I'll probably leave it as is unless it gets worse or there is something else I can try.

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  1. MISAdmin 381 Reputation points
    2021-08-17T11:16:55.677+00:00

    Thanks. The errors happened when I reserved new IPs for some clients and then replicated the scope from the partner failover DHCP server to the main DHCP server. They haven't happened since. I'll see if I get more the next time I change the reservation on the next bunch of clients. Next time I'll replicate from the main DHCP server in the failover to the partner. I'll post back.

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  2. Anonymous
    2021-08-17T12:48:31.753+00:00

    Sounds good,

    --please don't forget to upvote and Accept as answer if the reply is helpful--

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