NAME

  S_RFC3736_5.2_SLDHCPRelaySvr.seq - Checking Relay Message Option

TARGET

  Server

SYNOPSIS

 S_RFC3736_5.2_SLDHCPRelaySvr.seq [-tooloption ...]
 -pkt S_RFC3736_5.2_SLDHCPRelaySvr.def 
 -tooloption: v6eval tool option
See Also  DHCPv6.def 
 

INITIALIZATION

• Network Topology

                TN(Client1)
                   |
Link1 -------------+-------+-------------- 3ffe:501:ffff:101::/64
                           |
                         TN (Relay1)
                           |
Link0 ---------------------+---------+--- 3ffe:501:ffff:100::/64
                                     |
                                 NUT(Server1)
  

• Verification Points

       

Relay-reply Message Format

   The format of the Relay Message option is:

       0                   1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |        OPTION_RELAY_MSG       |           option-len          |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |                                                               |
      .                       DHCP-relay-message                      .
      .                                                               .
      .                                                               .
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      
msg-type
          RELAY-REPL(13)
      
transaction-id
	  Any
      
Server ID option
	  Any
      
Client ID option
	  Any
      
Relay Message option
	      

			
option-code
			OPTION_RELAY_MSG (9)
			
option-len
			Length of DHCP-relay-message
			
DHCP-relay-message
			In a Relay-forward message, the received
                    message, relayed verbatim to the next relay agent
                    or server; in a Relay-reply message, the message to
                    be copied and relayed to the relay agent or client
                    whose address is in the peer-address field of the
                    Relay-reply message
		
       

• Configuration

Device Name	Device Type	I/F	Assigned Prefix	Link Local Addr	MAC Addr
Server1	NUT	Link0	3ffe:501:ffff:100::/64	NUT's Linklocal address	NUT's MAC address
Relay1(Link1)	TN	Link1	3ffe:501:ffff:101::/64	fe80::200:ff:fe00:a2a2	00:00:00:00:a2:a2
Relay1(Link0)	TN	Link0	3ffe:501:ffff:100::/64	fe80::200:ff:fe00:a4a4	00:00:00:00:a4:a4
Client1	TN	Link1	3ffe:501:ffff:101::/64	fe80::200:ff:fe00:a2a2	00:00:00:00:a2:a2

TEST PROCEDURE

       NUT     TN(Relay1)  TN(Client1)
        |       |           |
        |       |           |     initialize NUT (as a stateless DHCPv6 Server)
        |       | <----     |     Information-request 
        | <---- |           |     Relay-forward (Information-request)
        | ----> |           |     Relay-reply (Reply w/Relay Message option)  (*1)
        |       |           |    

JUDGEMENT

(*1)PASS:  The server returns the Relay-reply message, it includes Relay Message option.

TERMINATION

REFERENCE

   see also RFC3315
   22.10. Relay Message Option   see also RFC3736
   5.2.  Options Required for Stateless DHCP Service

SEE ALSO