DHCP options are codes that the router inserts in packets being forwarded from a DHCP client to a DHCP server. Some options have more information stored in sub-options.
The 7210 SAS supports Option 60 and Option 61 as specified in RFC 2132. Option 60 is the vendor class identifier, which can contain information such as the client's hardware configuration. Option 61 is the client identifier.
The 7210 SAS supports the Relay Agent Information Option 82 as specified in RFC3046. The following sub-options are supported for the base router:
action
circuit ID
copy-82
remote ID