NAME

        CL_RFC2671_4_1_OPT_RR - OPT pseudo-RR

VERIFICATION POINTS

        Verify that a NUT transmits query that is correct position for OPT pseudo-RR

OPT pseudo-RR can be added to the additional data section of
either a request or a response.

TARGET

        Client

SYNOPSIS

	CL_RFC2671_4_1_OPT_RR.seq [-tooloption ...]: KOI tool option
	See also DNSConfig.pm

INITIALIZATION

• Network Topology

        AP Server1(TN):A.example.com     DNS Server1(TN)
          |3ffe:501:ffff:101::10           |3ffe:501:ffff:101::20
          |192.168.1.10                    |192.168.1.20
          |                                |
Net-y   --+--------+-----------------------+-------- 3ffe:501:ffff:101::/64 
                   |                                 192.168.1/24
                   |
                   |
                 ROUTER1(TN)
                   |3ffe:501:ffff:100::1
                   |192.168.0.1
                   |
Net-z   --+--------+-------------------------------- 3ffe:501:ffff:100::/64 
          |                                          192.168.0/24
        DNS Client1(NUT)
           3ffe:501:ffff:100:XXXX
           192.168.0.10
	

	XXXX: EUI64 address
	

• Setup

	Set the DNS Server1(TN)'s address on NUT as above mentioned Network Topology.
	

• Pre-Sequence

	In order to send the query for A type of AP Server1(TN):A.example.com 
	to the DNS Server1(TN) with OPT RR(1024 bytes), NUT is configured.
	

TEST PROCEDURE

	This test sequence is following.


    DNS Client1 (NUT)                        DNS Server1 (TN)
        |                                              |
        |--------------------------------------------->|
        |           1. Send standard query             |
        |                                              |
        v                                              v


	1. NUT send standard query with OPT RR to TN.
                  Judgment (Check *1)

Packet Description
	

	  

	    

	      

	      1. Standard query from DNS Client1 (NUT) to DNS Server1 (TN) 
	      
	    
	    

	      
IP Header
	      
Source Address
	      
NUT_NETZ
	    
	    

	      
Destination Address
	      
SV_NETY
	    
	    

	      
UDP Header
	      
Src Port
	      
any
	    
	    

	      
Dst Port
	      
53
	    
 	   

 	     
DNS Header
 	     
ID
	      
any
	    
	    

	      
QR
	      
0
	    
	    

	      
OPCODE
	      
0
	    
	    

	      
AA
	      
any
	    
	    

	      
TC
	      
0
	    
	    

	      
RD
	      
any
	    
	    

	      
RA
	      
any
	    
	    

	      
Z
	      
any
	    
	    

	      
RCODE
 	     
any
	    
	    

	      
QDCOUNT
	      
1
 	   
	    

	      
ANCOUNT
	      
0
	    
	    

	      
NSCOUNT
	      
0
	    
	    

	      
ARCOUNT
	      
any
	    
	    

	      
DNS Question section
	      
QNAME
	      
A.example.com
	    
	    

	      
QTYPE
	      
A (0x0001)
	    
	    

	      
QCLASS
	      
any
	    
	    

	      
DNS Additional section
	      
NAME(root)
	      
any
	    
	    

	      
TYPE(OPT)
	      
EDNS0 option(0x0029)
	    
	    

	      
CLASS(UDP payload size)
	      
any
	    
	    

	      
TTL(EXTENDED-RCODE)
	      
any
	    
	    

	      
TTL(VERSION)
	      
any
	    
	    

	      
TTL(Z)
	      
any
	    
	    

	      
RDLENGTH (describes RDATA)
	      
any
	    
	    

	      
RDATA {attribute,value} pairs
	      
any
	    
	  
	
NUT_NETZ : DNS Client1(NUT)'s address
SV_NETY : DNS Server1(TN)'s address

JUDGMENT

        1. Standard query for A type with OPT RR must be based on above Verification Points.
                *OPT RR must be add to the additional section.

TERMINATION

        If NUT has cache function, clear the cache.

REFERENCE

	RFC2671 Extension Mechanisms for DNS (EDNS0)
	4 - OPT pseudo-RR