NAME

        SV_RFC1034_3_6_MX_rdata - Resource record of MX


VERIFICATION POINTS

        Verify that a NUT transmits correct message including MX resource record.


TARGET

        Authoritative Server


SYNOPSIS

	SV_RFC1034_3_6_MX_rdata.seq [-tooloption ...]: KOI tool option
	See also DNSConfig.pm


INITIALIZATION


TEST PROCEDURE

        This test sequence is following.
    DNS Client1 (TN)                       DNS Server1 (NUT)
        |                                      |
        |------------------------------------->|
        |   1. Send standard query             |
        |       QNAME=example.com              |
        |       QTYPE=MX                       |
        |                                      |
        |<-------------------------------------|
        |   2. Standard query response         |
        |       MX=10 MAIL1.example.com        |
        |                                      |
        |(Change zone file on DNS Server1(NUT) |
        |       from A to B.)                  |
        |                                      |
        |------------------------------------->|
        |   3. Send standard query to NUT      |
        |       QNAME=example.com              |
        |       QTYPE=MX                       |
        |                                      |
        |<-------------------------------------|
        |   4. Standard query response         |
        |       MX=10 MAIL1.example.com        |
        |       MX=20 MAIL2.example.com        |
        |                                      |
        v                                      v
        1. TN send standard query QNAME=example.com, QTYPE=MX to NUT.
        2. NUT reply query response w/ MX=10 MAIL1.example.com to TN (Judgment *2)
        3. TN send standard query QNAME=mail.example.com, QTYPE=MX to NUT.
        4. NUT reply query response w/ MX=10 MAIL1.example.com and MX=20 MAIL2.example.com to TN (Judgment *4)


JUDGMENT

        2. Received standard query response including MX type record.
        4. Received standard query response including multiple MX type records.


TERMINATION

        None


REFERENCE

        RFC1034 DOMAIN NAMES - CONCEPTS AND FACILITIES
        3.6 Resource Records
        RFC1035 DOMAIN NAMES - IMPLEMENTATION AND SPECIFICATION
        3.2.1 Format 
        3.2.2 TYPE values 
        3.3.9 MX RDATA format