NAME

        SV_RFC1035_4_1_3_Authority - Authority section format

VERIFICATION POINTS

        Verify that a NUT transmits correct Authority section format

• Authority section format

                                    1  1  1  1  1  1
      0  1  2  3  4  5  6  7  8  9  0  1  2  3  4  5
    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
    |                                               |
    /                                               /
    /                      NAME                     /
    |                                               |
    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
    |                      TYPE                     |
    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
    |                     CLASS                     |
    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
    |                      TTL                      |
    |                                               |
    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
    |                   RDLENGTH                    |
    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--|
    /                     RDATA                     /
    /                                               /
    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
	

NAME : a domain name (example.com(Pointer 0xC00E))
TYPE : RR type codes (NS type : 2)
CLASS : class of the data in the RDATA field (IN : 1)
TTL : a 32 bit unsigned integer that specifies the time (1day : 86400)
RDLENGTH : length in octets of the RDATA field (6)
RDATA : resource record (NS1.example.com (NS1 + Pointer 0xC00E))

TARGET

        Authoritative Server

SYNOPSIS

	SV_RFC1035_4_1_3_Authority.seq [-tooloption ...]: KOI tool option
	See also DNSConfig.pm

INITIALIZATION

Network Topology

        AP Server1 (TN)
          |3ffe:501:ffff:101::10
          |192.168.1.10
          |
Net-y   --+--------+-------------------------- 3ffe:501:ffff:101::/64 
                   |                           192.168.1/24
                   |
                   |
                 Router (TN)
                   |3ffe:501:ffff:100::1
                   |192.168.0.1
                   |
                   |
Net-z   --+--------+-----------------+-------- 3ffe:501:ffff:100::/64 
          |                          |          192.168.0/24
          |                          |
        DNS Server1 (NUT)            DNS Client1 (TN)
           3ffe:501:ffff:100::XXXX     3ffe:501:ffff:100::20 
           192.168.0.10                192.168.0.20
	

	XXXX: EUI64
	

Setup



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

Configure the Server1's (NUT) zone file to response query from TN.


Example of example.com zone file:


$TTL    86400           ; TTL of 1 day
@ IN SOA NS1.example.com. root.example.com. (
	2005081600	; serial
	3600		; refresh every 1 hr
	900		; retry every 15 min
	604800		; expire after a week
	3600		; Minimum TTL of a 1 hr
)
;
	IN	NS	NS1.example.com.
NS1	IN	A	192.168.0.10
;
A	IN	A	192.168.1.10
	

TEST PROCEDURE

        This test sequence is following.

    DNS Client1 (TN)                       DNS Server1 (NUT)
        |                                      |
        |------------------------------------->|
        |   1. Send standard query             |
        |       QNAME=A.example.com            |
        |       QTYPE=A                        |
        |                                      |
        |<-------------------------------------|
        |   2. Standard query response         |
        |       A=192.168.1.10                 |
        |                                      |
        v                                      v

        1. TN send standard query QNAME=A.example.com, QTYPE=A to NUT.
        2. NUT reply query response w/ A=192.168.1.10 to TN (Judgment *2)

Packet Description



1st packet.

Standard query from DNS Client1 (TN) to Server1 (NUT)
IP Header	Source Address	CL1_NETZ
	Destination Address	NUT_NETZ
UDP Header	Src Port	2000
	Dst Port	53
DNS Header	ID	0x1000
	QR	0
	OPCODE	0
	AA	0
	TC	0
	RD	1
	RA	0
	Z	0
	RCODE	0
	QDCOUNT	1
	ANCOUNT	0
	NSCOUNT	0
	ARCOUNT	0
DNS Question section	QNAME	A.example.com
	QTYPE	A (0x0001)
	QCLASS	IN (0x0001)



2nd packet.

Standard query response from DNS Server1 (NUT) to Client1 (TN)
IP Header	Source Address	NUT_NETZ
	Destination Address	CL1_NETZ
UDP Header	Src Port	53
	Dst Port	2000
DNS Header	ID	any
	QR	any
	OPCODE	any
	AA	any
	TC	any
	RD	any
	RA	any
	Z	any
	RCODE	any
	QDCOUNT	any
	ANCOUNT	any
	NSCOUNT	any
	ARCOUNT	any
DNS Question section	QNAME	any
	QTYPE	any
	QCLASS	any
DNS Answer section	NAME	any
	TYPE	any
	CLASS	any
	TTL	any
	RDLENGTH	any
	ADDRESS	any
DNS Authority section	NAME	example.com (Pointer 0xC00E)
	TYPE	NS (0x0002)
	CLASS	IN (0x0001)
	TTL	1 day (86400)
	RDLENGTH	6
	NSDNAME	NS1.example.com (NS1 + Pointer 0xC00E)
DNS Additional section	NAME	any
	TYPE	any
	CLASS	any
	TTL	any
	RDLENGTH	any
	ADDRESS	any




Exp.


NUT_NETZ	DNS Server1's (NUT) Net-z address
CL1_NETZ	DNS Client1's (TN) Net-z address

JUDGMENT

        2. Standard query must be based on above Verification Points.

TERMINATION

        None

REFERENCE

        RFC1035 DOMAIN NAMES - IMPLEMENTATION AND SPECIFICATION
        4.1.3. Resource record format