DHCP Server on CentOS 7 as a VM

[Spunky12]

Need some help with this one as I can't see any reason why this is not working.

Decomissioning my VMWare server in favor of Bhyve on my FreeNAS server. I am running 11.0-U4 and have the VM installed and running. I have dhcpd installed and configured. When I shutdown my Windows DHCP server and start the one on my CentOS VM I can see the requests coming in from the clients and the offer going out but the clients are never getting them almost as if something is blocking them from going out. I have disabled the firewall on my CentOS server so wondering if it's something with FreeNAS?

Nov 29 22:41:23 nsl dhcpd: DHCPDISCOVER from 50:46:5d:73:c7:f5 (MYWORKSTATION) via eth0
Nov 29 22:41:23 nsl dhcpd: DHCPOFFER on 192.168.1.155 to 50:46:5d:73:c7:f5 (MYWORKSTATION) via eth0

Any thoughts or suggestions?

 

[Spunky12]

Okay, just figured this out and had my Doh! moment for the week.

My UniFi switches had DHCP guarding enabled, i.e. they were setup to only allow DHCP traffic from DHCP server IPs provided and were blocking all others. Since the IP address of my server is different on my CentOS server vs my Windows Server I had to enter the new servers IP address to allow the traffic.



Face Palm!