DHCP Reservations on Firepower 1010

[MP13]

Hi,

We have a Firepower 1010 that we'd like to move DHCP to from a Windows Server as it's the last server we have left in our old domain now that everything is in Azure AD instead. 

In order to do this we need to add some DHCP reservations in for devices that are configured to use DHCP but have the same IP every time. There doesn't appear to be a way to do this in FDM and it seems like the commands in FlexConnect are also blocked.

Is there any way to do this or do I need to find a different device to act as the DHCP server? I think I could run it on a 2960-X that we have at the network core as well which would give me more DHCP control if it wasn't possible on the Firepower.

[Rob Ingram · Accepted solution]

@MP13 unfortunately that is not possible using FDM, nor with using FlexConfig

[MHM Cisco World]

Did you try 

dhcpd reserve-address

In flex config and not work?

If Yes then you can use 2960-X as dhcp serve.

MHM

[MP13]

Yes, unfortunately it's a blacklisted command so is not accepted.

[marce1000]

 - In general you are better off when looking into DHCP appliances , and separating dhcp services from networking equipment  , 

 M.

[MP13]

Thank you all for the clarification. We'll go with the 2960-X route.

[marce1000]

                                    >... We'll go with the 2960-X route.
 - The reasons why DHCP  appliances are better because vendors will offer 'dhcp clusters' with unnoticed failover if one dhcp member fails (e.g,). also resulting  better preserving of leases and other dhcp databases.
                     DHCP on switches can lead to race conditions w.r.t network servicing too.

 M.