NAME

LLA_DAD_NAPreDAD_SameTgt - check the process when NUT receives DAD NS with same Target address before sending DAD NS.

TARGET

All Node

SYNOPSIS

LLA_DAD_NAPreDAD_SameTgt.seq [-tooloption ...] -pkt <packetdef> [addrconf=<addrconfname>]

  -tooloption   : v6eval tool option
  <packetdef>   : packet definition file (v6eval tool option)
  <addrconfname>: how to configure address on NUT; boot/reboot

 detail of v6eval tool option: see perldoc V6evalTool.pm, perldoc V6evalRemote.pm

INITIALIZATION

 Reboot NUT or Initialize interface of NUT or Initialize IPv6 stack of NUT.

TEST PROCEDURE

Test for Unicast address configuration

The following tests are prepared in this test package. See INDEX file.

Test for all node

   NUT performs DAD for its Link-local unicast address made by stateless address
   autoconfiguration though NUT receives DAD NS which contains same target as
   NUT's tentative Link-local address before transimitting DAD NS.

Test sequence

  TN                            NUT
  ---------------------------------
  Initialize NUT

  Configure address of NUT (reboot or interface initialization etc...)

  ==== Action #1: DAD NA =========>
  ====        #1: DAD NA =========>
                :
                :
  ====        #1: DAD NA =========>
        name: DADNA_from_TN_SameTgt

  TN wait the DAD NS sent from NUT
  X<=== Judgement #1: DAD NS =======
        name: DADNS_from_NUT

  Wait for DupAddrDetectTransmits*RetransTimer

  Check if NUT's address is configured
  ==== Action #2: DAD NS =========>
        name: DADNS_from_TN

  X<== Judgement #2: DAD NA =======
        name: DADNA_from_NUT, DADNA_from_NUT_woTLL

JUDGEMENT

Test for Link-local Unicast address autoconfiguration

Test for all NODE

NUT performs Stateless Address Autoconfiguration(Link-local) on its interface

   Action #1. TN transmits DAD NA which contains same target Address as NUT's tentative Link-local address.
              Keep transmitting for *InitializingTime* .
        name: DADNA_from_TN_SameTgt
        src: NUT's Link-local
        dst: allnode
        TargetAddress: NUT's Link-local
        RFlag: 0
        SFlag: 0
        OFlag: 1
        OLLOPT: TN's MAC address

   Judgement #1. NUT MUST NOT transmit DAD NS for its autoconfigured Link-local address.
        name: DADNS_from_NUT
        src: ::0
        dst: solnode[NUT's tentative Link-local]
        TargetAddress: NUT's tentative Link-local

   Action #2. TN transmits DAD NS to check if NUT's address is configured after *InitializingTime*.
        name: DADNS_from_TN
        src: ::0
        dst: solnode[NUT's Link-local]
        TargetAddress: NUT's Link-local