Setting the wait time for ARP ping response

You can set the number of seconds to wait for a response to an ARP ping packet on the DHCP server.

At startup, the server reconciles the lease binding database by sending an ARP ping packet out to every client. If there is no response to the ARP ping packet within a set amount of time (set in seconds), the server deletes the client from the lease binding database. The minimum setting is 5 seconds and the maximum is 30 seconds.

Note: Do not alter the default value unless it is necessary. Increasing the value of this timer may increase the time to get console access after a reboot.

Enter global configuration mode by issuing the configure terminalcommand.
```
device# configure terminal
```

Specify the number of seconds to wait for a response to an ARP ping packet.
```
device(config)# ip dhcp-server arp-ping-timeout 20
```

The following example configures a wait ARP ping packet timeout response to 20 seconds.

device# configure terminal
device(config)# ip dhcp-server arp-ping-timeout 20