can't find where to delete a device entry associated with an interface

[RobLatour]

I'm having trouble assigning a new device to an old ip address (I don't think it is the dnsmasq lease expiry issue - rather something else).

What I'm trying to do is to get a new device to come in and be assigned the address 192.168.7.24 which had previousily been assigned.
I waited until it had expired in the lease table, and then plugged in the new device - however it would not get the address I had wanted to spite me having already it defined in the dnsmasq host table (by its MAC) to be assigned to 192.168.7.24

I can get it assinged to 192.168.7.25 - but with that I get odd behaviours.

For example, the device is plugged directly into the OPNSense box's opt2 interface.  There is only one device plugged into that interface - but regardless with that one device plugged in I can ping both 192.168.7.24 and 192.168.7.25. 

As I'm using this device in conjunction with OPNSense's Time Service; I've tried stopping that server and turning it on at various points in my experementation to get this to work - just incase the time service has a hold on the IP address some how??

Also, oddly, while 192.168.7.24 no longer shows up in the lease table or the host table, I backed up my configuration and looked inside the back up file to find this (I just have no idea where to delete it from):

```
    <opt2>
      <gateway>192.168.7.1</gateway>
      <ddnsdomainalgorithm>hmac-md5</ddnsdomainalgorithm>
      <numberoptions>
        <item/>
      </numberoptions>
      <range>
        <from>192.168.7.24</from>
        <to>192.168.7.24</to>
      </range>
      <winsserver/>
      <dnsserver>192.168.7.1</dnsserver>
      <ntpserver/>
      <staticmap>
        <mac>24:0a:c4:26:9e:43</mac>
        <ipaddr>192.168.7.24</ipaddr>
        <hostname>MasterClock</hostname>
        <descr>MasterClock</descr>
        <arp_table_static_entry>1</arp_table_static_entry>
        <winsserver/>
        <dnsserver/>
        <ntpserver/>
      </staticmap>
    </opt2>
```
edit: I thought maybe if I could delete / clear the above I could get it to work - but can't seem to find how to do that.

edit: I should note I am running OPNsense 26.7.2_2-amd64 ; FreeBSD 15.1-RELEASE-p2 ; OpenSSL 3.5.7

[Patrick M. Hausen]

Remove the dynamic range.