NAME

  S_RFC3633_11.2_AssignPrefixFailed.seq - Checking Advertise message sent by delegating router

TARGET

  Server

SYNOPSIS

 S_RFC3633_11.2_AssignPrefixFailed.seq [-tooloption ...]
 -pkt S_RFC3633_11.2_AssignPrefixFailed.def 
 -tooloption: v6eval tool option
See Also  DHCPv6.def 
 

INITIALIZATION

• Network Topology

          TN(Requesting router1)  TN(Requesting router2)
             |                     |
Link0 -------+-----------+--------------- 3ffe:501:ffff:100::/64
                         |
                       NUT(Delegating router1)
  

If the delegating router will not assign any prefixes to any IA_PDs
in a subsequent Request from the requesting router, the delegating
router MUST send an Advertise message to the requesting router that
includes the IA_PD with no prefixes in the IA_PD and a Status Code
option in the IA_PD containing status code NoPrefixAvail and a status
message for the user, a Server Identifier option with the delegating
router's DUID and a Client Identifier option with the requesting
router's DUID.
The Advertise message returned by Delegating router for Requesting
router2 includes IA_PD option. The IA_PD includes Status code with code
NoPrefixAvail(6).And no any Prefixes in the IA_PD option.

Delegating router can only assign 1 prefix to the first request.

Device Name	Device Type	I/F	Assigned Prefix	Link Local Addr	MAC Addr
Delegating router1	NUT	Link0	3ffe:501:ffff:100::/64	NUT's Linklocal address	NUT's MAC address
Requesting router1	TN	Link0	3ffe:501:ffff:100::/64	fe80::200:ff:fe00:a2a2	00:00:00:00:a2:a2
Requesting router2	TN	Link0	3ffe:501:ffff:100::/64	fe80::200:ff:fe00:a2a2	00:00:00:00:a2:a2

TEST PROCEDURE

       NUT     TN
        |       | 
        |       | initialize NUT (as a Delegating router)
        |       | Requesting router1
        | <---- | Solicit
        | ----> | Advertise	
        | <---- | Request
        | ----> | Reply		
        |       | 
	|       | Requesting router2
        | <---- | Solicit
        | ----> | Advertise	(*1)
        |       | 

JUDGEMENT

(*1)PASS: The Advertise message include Status Code option.
              (NoPrefixAvail ) And the location is right.

TERMINATION

REFERENCE

   see also RFC3633
   11.2  Delegating router behavior

SEE ALSO