DHCPv6报文格式

报文类型：

• SOLICIT (1)
• ADVERTISE (2)
• REQUEST (3)
• CONFIRM (4)
• RENEW (5)
• REBIND (6)
• REPLY (7)
• RELEASE (8)
• DECLINE (9)
• RECONFIGURE (10)
• INFORMATION-REQUEST (11)
• RELAY-FORW (12)
• RELAY-REPL (13)

消息ID

选项字段

• Relay-forward Message: RELAY-FORW
• Relay-reply Message: RELAY-REPL

• Relay-forward Message: Number of relay agents that have relayed this message.
• Relay-reply Message: Copied from the Relay-forward message.

• Relay-forward Message: A global or site-local address that will be used by the server to identify the link on which the client is located.
• Relay-reply Message: Copied from the Relay-forward message.

• Relay-forward Message: The address of the client or relay agent from which the message to be relayed was received.
• Relay-reply Message: Copied from the Relay-forward message.

无符号整数，标识选项的类型：

• OPTION_CLIENTID (1): 标识客户端身份，用于识别客户。
• OPTION_SERVERID (2): 用于识别服务器。
• OPTION_IA_NA (3): 非临时地址集合选项。
• OPTION_IA_TA (4): 临时地址集合选项。
• OPTION_IAADDR (5): 用于携带地址选项。
• OPTION_ORO (6): 选项请求选项，用来在客户端和服务器之间标识一系列选项。
• OPTION_PREFERENCE (7)
• OPTION_ELAPSED_TIME (8): Elapsed Time Option
• OPTION_RELAY_MSG (9): 在Relay-forward消息或Relay-reply消息中传递DHCP消息。
• OPTION_AUTH (11): Authentication Option
• OPTION_UNICAST (12): Server Unicast Option
• OPTION_STATUS_CODE (13): Status Code Option
• OPTION_RAPID_COMMIT (14): Rapid Commit Option
• OPTION_USER_CLASS (15): User Class Option
• OPTION_VENDOR_CLASS (16): Vendor Class Option
• OPTION_VENDOR_OPTS (17): Vendor-specific Information Option
• OPTION_INTERFACE_ID (18): 用于标识用户接入接口
• OPTION_RECONF_MSG (19): Reconfigure Message Option
• OPTION_RECONF_ACCEPT (20): Reconfigure Accept Option
• DNS Recursive Name Server (23)
• DNS Domain Search List (24)
• IA_PD (25): (Identity association for prefix delegation)，授权的前缀集合选项。
• IA_PD Prefix (26): 用于携带前缀选项。
• Relay Agent Remote-ID (37)
• Relay Agent Subscriber-ID (38)
• AFTR Name (64): 用于DS-Lite方案中携带AFTR的域名。