DstSelectRule9.seq - Destination Address Selection
Check Rule 9(Use longest matching prefix)
Rule 9: Use longest matching prefix.
When DA and DB belong to the same address family (both are IPv6 or both are IPv4):
If CommonPrefixLen(DA, Source(DA)) > CommonPrefixLen(DB, Source(DB)), then prefer DA.
Source addresses used for this test are "preferred address".
Host and Router
DstSelectRule9.seq [-tooloption ...] -pkt ADDR_SELECT.def
-tooloption : v6eval tool option
None
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. Set DNS setting in NUT
1.3. Add Candidate Source Addresses in NUT
1.4. Check Candidate Source Addresses by Ping6 (TN->NUT)
2. Send Ping6 from NUT to Destination(FQDN)
2.1. NUT send DNS query (question) (NUT->TN)
2.2. TN send DNS query (answer) (TN->NUT)
2.3. 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
4.3. Remove DNS setting in NUT
NUT TN Default DNS Destination
| | Router | |
| | | | |
======(INITIALIZE)=========
| | | | |
|<-<-<-+ | | | Set IPv6 Default Route
|<-<-<-+ | | | Set DNS setting
|<-<-<-+ | | | Add Candidate Source Addresses
| | | | |
|<------------+ | | Echo Request to Candidate Source Addresses 1
+------------>| | | Echo Reply
| | | | |
|<------------+ | | Echo Request to Candidate Source Addresses 2
+------------>| | | Echo Reply
| | | | |
|<------------+ | | Echo Request to Candidate Source Addresses 3
+------------>| | | Echo Reply
| | | | |
======(INITIALIZE)=========
| | | | |
|<-<-<-+ | | | Excute ping6 command
| | | | |
+------------------>| | DNS query question
<-------------------+ | DNS query answer
+------------------------>| Echo Request
| | | | |
LLA(Link Local Address)
*Following address grouup does not match Rule 1-8
Check 01:
DNS Address: 3ffe:1111:1111:1111::9
Candidate Source Addresses: 3ffe:1111:1111:1111::1 or 3ffe:2222:1111:1111::1 or fec0::1 or LLA
Destination Address List: 3ffe:2222:1111:1112::2 or 3ffe:1111:1111:1111::2
Result: 3ffe:1111:1111:1111::2 (src 3ffe:1111:1111:1111::1) then 3ffe:2222:1111:1112::2 (src 3ffe:2222:1111:1111::1)
Check 02:
DNS Address: 3ffe:1111:1111:1111:::9
Candidate Source Addresses: 3ffe:1111:1111:1111::1 or 3ffe:2222:1111:1111::1 or fec0::1 or LLA
Destination Address List: 3ffe:2222:1111:1112::2 or 3ffe:1111:1111:1111::2
Result: 3ffe:1111:1111:1111::2 (src 3ffe:1111:1111:1111::1) then 3ffe:2222::2 (src 3ffe:2222:1111:1111::1)
Check 01:
PASS: Receive Echo Request & destination(source) = 3ffe:1111:1111:1111::2 (3ffe:1111:1111:1111::1)
Check 02:
PASS: Receive Echo Request & destination(source) = 3ffe:1111:1111:1111::2 (3ffe:1111:1111:1111::1)
TEST
PASS: All Check = PASS
perldoc V6evalTool
ADDR_SELECT.html "Default Address Selection for IPv6" Test Common Utility
das_rules.html "Default Address Selection for IPv6" Rules