| Option | Description | Command |
|---|---|---|
Option 12 |
Name of the client | ip dhcp client hostname host-name |
Option 51 |
Request lease time | ip dhcp client lease days [hours] [minutes] |
Option 55 |
Turn off some of the requested options | [no] ip dhcp client request option-name |
Option 60 |
Vendor class identifier string | ip dhcp client class-id { ascii string | hex string } |
Option 61 |
Specify unique client identifier | ip dhcp client client-id { interface-name| ascii string | hex string } |
DHCP Client Identifier = hardware type (usually 01) + client hardware address.
Client Identifier NOT used for BOOTP. Solely for DHCP.