# NAME

      SrcSelectExample7.seq - Source Address Selection Examples in RFC
                              check #7(Use longest matching prefix)

      Rule 8: Use longest matching prefix.
        If CommonPrefixLen(SA, D) > CommonPrefixLen(SB, D), then prefer SA.

      Source addresses used for this test are "preferred address".

# TARGET

      Host and Router

# SYNOPSIS

      SrcSelectExample7.seq [-tooloption ...] -pkt ADDR_SELECT.def
        -tooloption : v6eval tool option

# INITIALIZATION

      None

# TEST PROCEDURE

      This TEST performs the following Check procedures for
      every address group defined by Check 01 - *.

      *Check procedure

      1. Initialize :
         1.1. Set IPv6 Default Route in NUT
              (Default Router address = <TN-Link0-LinkLocalAddress>)
         1.2. Add Candidate Source Addresses in NUT
         1.3. Check Candidate Source Addresses by Ping6 (TN->NUT)
      2. Send Ping6 from NUT to Destination
         2.1. NUT send ICMPv6 echo request (NUT->TN)
      3. Judgment :
         if (recive packet's Destination & Source Addresses)
         = (expected Destination & Source Addresses), Check pass
      4. Cleanup :
         4.1. Delete Candidate Source Addresses in NUT
         4.2. Clear prefix list & NCE & default router list in NUT

            NUT    TN  Default Router  Destination
             |      |      |           |
             ======(INITIALIZE)=========
             |      |      |           |
             |<-<-<-+      |           | Set IPv6 Default Route
             |<-<-<-+      |           | Add Candidate Source Addresses
             |      |      |           |
             |<------------+           | Echo Request to Candidate Source Addresses 1
             +------------>|           | Echo Reply
             |      |      |           |
             |<------------+           | Echo Request to Candidate Source Addresses 2
             +------------>|           | Echo Reply
             |      |      |           |
             ======(INITIALIZE)=========
             |      |      |           |
             |<-<-<-+      |           | Excute ping6 command
             |      |      |           |
             +------------------------>| Echo Request
             |      |      |           |

      LLA(Link Local Address)

      Check 01:
        Destination: 2001::1
        Candidate Source Addresses: 2001::2 or 3ffe::2
        Result: 2001::2

# JUDGEMENT

      Check 01:
        PASS: Receive Echo Request & source address = 2001::1

      TEST
        PASS: Check 1 = PASS

# SEE ALSO

      perldoc V6evalTool

      ADDR_SELECT.html "Default Address Selection for IPv6" Test Common Utility

      das_rules.html "Default Address Selection for IPv6" Rules