Client Requested DHCPv6 Options
The following default options are encapsulated by the DHCPv6 client when requesting DHCPv6 server.
- OPTION_CLIENTID (code 1). The Client Identifier option is used to carry a DUID identifying a client between a client and a server.
- OPTION_SERVERID (code 2). The Server Identifier option is used to carry
a DUID identifying a server between a client and a server.
NoteOPTION_SERVERID option is included if DHCPv6 client is responding to a particular server.
- OPTION_IA_NA (code 3). The client uses IA_NA options to request the assignment of non-temporary address assignment.
- OPTION_IAADDR (code 5). The IA_ADDR is used to specify the IPv6 addresses associated with
IA_NA or IA_TA option.
NoteOPTION_IAADDR is included only if the client lease is present.
NoteIAID is the last 4 bytes of the hardware address
- OPTION_ORO (code 6). The Option Request option is used to identify a list of options in a message between client and server. A client includes an Option Request option in a Solicit, Request, Renew, Rebind, Confirm or Information-request message to inform the server about options the client is interested in.
- OPTION_DNS_SERVERS (code 23).
- OPTION_DOMAIN_LIST (code 24). Reference for above ORO options: http://tools.ietf.org/html/rfc3646.
- OPTION_ELAPSED_TIME(code 8). A client MUST include an Elapsed Time option in messages to indicate how long the client has been trying to complete a DHCP message exchange.