Defining Static IP Source Bindings

You can manually enter valid IP addresses in the binding database.

Note that because static IP source bindings consume system resources, you should avoid unnecessary bindings.

Enter the ip source binding command followed by a valid IP address and the interface number. Entering the VLAN number is optional.
```
device(config)# ip source binding 10.10.10.1 ethernet 1/2/4 vlan 4
```
If you enter a VLAN number, the binding applies to that VLAN only. If you do not enter a VLAN number, the static binding applies to all VLANs associated with the port.