NAME

  S_RFC3315_21.5.2_InfoReply.seq - Information-Request/Reply with Reconfigure Authentication Protocol

TARGET

  Server

SYNOPSIS

 S_RFC3315_21.5.2_InfoReply.seq [-tooloption ...]
 -pkt S_RFC3315_21.5.2_InfoReply.def  -tooloption: v6eval tool option
 See Also  DHCPv6.def 
 

INITIALIZATION

• Network Topology

          TN(Client1)  
             |
Link0 -------+-----------+--------------- 3ffe:501:ffff:100::/64
                         |
                       NUT(Server1)
  

• Verification Points

   The server selects a Reconfigure Key for a client during the
   Request/Reply, Solicit/Reply or Information-request/Reply message
   exchange.  The server records the Reconfigure Key and transmits that
   key to the client in an Authentication option in the Reply message.
   

   To provide authentication for a Reconfigure message, the server
   selects a replay detection value according to the RDM selected by the
   server, and computes an HMAC-MD5 of the Reconfigure message using the
   Reconfigure Key for the client. 
   

   The server computes the HMAC-MD5 over the entire DHCP Reconfigure message,
   including the Authentication option; the HMAC-MD5 field in the Authentication
   option is set to zero for the HMAC-MD5 computation.  The server
   includes the HMAC-MD5 in the authentication information field in an
   Authentication option included in the Reconfigure message sent to the
   client.
          

• Configuration

Enable Reconfigure Authenticaion Protocol Service

Device Name	Device Type	I/F	Assigned Prefix	Link Local Addr	MAC Addr	Op1	Op2
Server1	NUT	Link0	3ffe:501:ffff:100::/64	NUT's Linklocal address	NUT's MAC address	N/A	N/A
Client1	TN	Link0	3ffe:501:ffff:100::/64	fe80::200:ff:fe00:a2a2	00:00:00:00:a2:a2	N/A	Yes

   Op1: Server ID Option
   Op2: Client ID Option

TEST PROCEDURE

       NUT     TN
        |       | 
        |       | Initialize NUT (as a DHCPv6 Server)
        |       | 
        | <---- | Information Request with Authentication Accept Option 
        |       | and Option Request Option(Preference Option)
        | ----> | Reply with Authentication Option and Preference Option(10)(*1)
        |       | 
        |       | Preference changed from 10 to 20
        |       | Reload server configuration 
        |       | 
        | ----> | Reconfigure with comptuted Authentication (w/Authentication Option) (*2)
        |       | w/Reconfigure Message Option(msg-type=11) 
        |       | 
        | <---- | Information-Request with Option Request Option(Preference Option)
        | ----> | Reply Preference Option(20)(*3)
        |       | 

JUDGEMENT

TERMINATION

REFERENCE

   see also RFC3315
   19.1.1. Creation and Transmission of Reconfigure Messages
   21.5. Reconfigure Key Authentication Protocol
   21.5.1. Use of the Authentication Option in the Reconfigure Key
        Authentication Protocol 

SEE ALSO