LLA_DAD_NAPostDAD_SameTgt - check the process when NUT receives DAD NA with
same Target address while DAD process(after
transmitting DAD
NS).
All Node
LLA_DAD_NAPostDAD_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
Reboot NUT or Initialize interface of NUT or Initialize IPv6 stack of NUT.
The following tests are prepared in this test package. See INDEX file.
Test for all node
When NUT performs DAD for its Link-local unicast address made by stateless address autoconfiguration, NUT receives DAD NA which contains same target as NUT's tentative Link-local address after transimitting DAD NS.
Test sequence
TN NUT --------------------------------- Initialize NUT
Configure address of NUT (reboot or interface initialization etc...)
TN wait the DAD NS sent from NUT <=== Judgement #1: DAD NS ======= name: DADNS_from_NUT
==== Action #1: DAD NA =========> name: DADNA_from_TN_SameTgt
Wait for DupAddrDetectTransmits*RetransTimer
Check if NUT's address is configured ==== Action #2: SOL NS =========> name: SOLNS_from_TN_SameTgt
X<== Judgement #2: SOL NA ======= name: NA_from_NUT, NA_from_NUT_woTLL
Test for all NODE
NUT performs Stateless Address Autoconfiguration(Link-local) on its interface
Judgement #1. NUT MUST 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 #1. TN transmits DAD NA which contains same target Address as NUT's tentative Link-local address. name: DADNA_from_TN_SameTgt src: NUT's Link-local dst: allnode TargetAddress: NUT's tentative Link-local RFlag: 0 SFlag: 0 OFlag: 1 OLLOPT: TN's MAC address
Action #2. TN transmits SOL NS to check if NUT's address is configured. name: SOLNS_from_TN_SameTgt src: TN's Link-local dst: solnode[NUT's Link-local] TargetAddress: NUT's Link-local
Judgement #2. NUT MUST transmit SOL NA for its autoconfigured Link-local address. name: NA_from_NUT, NA_from_NUT_woTLL src: NUT's Link-local dst: TN's Link-local TargetAddress: NUT's Link-local RFlag: 0 ( if NUT is a Router then 1) SFlag: 1 OFlag: 1 TLLOPT: NUT's MAC address
RFC2462
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5.4.4. Receiving Neighbor Advertisement Messages
On receipt of a valid Neighbor Advertisement message on an interface, node behavior depends on whether the target address is tentative or matches a unicast or anycast address assigned to the interface. If the target address is assigned to the receiving interface, the solicitation is processed as described in [DISCOVERY]. If the target address is tentative, the tentative address is not unique.
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detail of v6eval tool option: see perldoc V6evalTool.pm, perldoc V6evalRemote.pm