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Member Candidate
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Posts: 191
Joined: Sun Jun 21, 2009 6:15 pm

DHCP server assigns .0 IP

Fri Aug 16, 2019 9:05 am

I have a dhcp server that assigns IPs from Now when it reaches the end of 172.16.0. range, the next IP it assigns is How can I set the DHCP server to not assign the .0 IP of each range

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Member Candidate
Member Candidate
Posts: 171
Joined: Sat May 05, 2018 11:55 am

Re: DHCP server assigns .0 IP

Fri Aug 16, 2019 12:29 pm

There is nothing wrong with assigning .0 and .255 addresses IF they are valid for the subnet in question, i.e. not for a /24 ethernet network as they have special meaning, but fine part way through a /23 or larger.

If for some reason you object to having .0 present specify multiple non-overlapping ranges in your IP pool -,,
Forum Guru
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Joined: Mon Jun 08, 2015 12:09 pm

Re: DHCP server assigns .0 IP

Fri Aug 16, 2019 3:10 pm

Or create dummy static entries (with nonexisting MAC address) on the addresses you do not want to assign.
But indeed, it is no problem at all. We run /22 networks all the time with a 1000-address IP range and people are happily using .0 and .255 addresses.

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