2.2.6.1 User Class Option Sent by DHCPv4 Client to DHCPv4 Server
DHCPv4 clients MAY<14> send a User Class Option in all DHCPv4 messages sent by the client with any string configured by the administrator or a string from the User Class Data field. DHCPv4 clients support only one User Class option. For semantics of the usage of DHCPv4 user classes, refer to [RFC3004] section 4.
|
|
|
|
|
|
|
|
|
|
1 |
|
|
|
|
|
|
|
|
|
2 |
|
|
|
|
|
|
|
|
|
3 |
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Option Code |
Option Length |
User_Class_Data (variable) |
|||||||||||||||||||||||||||||
|
... |
|||||||||||||||||||||||||||||||
Option Code (1 byte): Must be 77 (0x4D) to indicate the User Class Option for DHCP.
Option Length (1 byte): Length in octets of the User Class Data field.
User_Class_Data (variable): The following User Class name is predefined in the DHCPv4 server and is sent by the DHCPv4 client in the specified scenario:
-
Value
Meaning
"RRAS.Microsoft"
This value MUST be used if the DHCPv4 client is sending a User Class Option in a message on a dial-up or VPN network interface. This string is otherwise known as the Default Routing and Remote Access Class.