RA_mGA_mRAmPXmRT - check the process when NUT receives 2 RAs which contains different Global Prefixes. These RAs were transmitted by different routers. (Assigning two Glboal addresses)
All Node
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 receives 2 RAs which contain different Global Prefixes from different router, NUT assignes autoconfigured addresses. NUT MAY perform DAD for its Global addresses prior to assigning them.
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
<=== Judgement #2: RS ===========
name: RS_from_NUT, RS_from_NUT_wSLL
==== Action #1: RA =============>
name: RA_GA0
==== Action #2: RA =============>
name: RA_GA1_RT1
<=== Judgement #3: DAD NS =======
name: DADNS_from_NUT_GA0Tgt
<=== Judgement #4: DAD NS =======
name: DADNS_from_NUT_GA1Tgt
Wait for 5+DupAddrDetectTransmits*(RetransTimer/1000)[sec]
Check if NUT's address is configured
==== Action #3: SOL NS =========>
name: SOLNS_from_TN_GA0Tgt
<=== Judgement #5: SOL NA =======
name:
NA_from_NUT_GA0Tgt,
NA_from_NUT_GA0Tgt_woTLL,
NA_from_GA0NUT_GA0Tgt,
NA_from_GA0NUT_GA0Tgt_woTLL,
NA_from_GA1NUT_GA0Tgt,
NA_from_GA1NUT_GA0Tgt_woTLL
==== Action #4: SOL NS =========>
name: SOLNS_from_TN_GA1Tgt
<=== Judgement #6: SOL NA =======
name:
NA_from_GA0NUT_GA1Tgt,
NA_from_GA0NUT_GA1Tgt_woTLL,
NA_from_NUT_GA1Tgt,
NA_from_NUT_GA1Tgt_woTLL,
NA_from_GA1NUT_GA1Tgt,
NA_from_GA1NUT_GA1Tgt_woTLL
Test for all NODE
NUT performs Stateless Address Autoconfiguration(2 Global) 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
Judgement #2. NUT SHOULD transmit RS.
name: RS_from_NUT
src: NUT's Link-local
dst: allrouter
Action #1. TN transmits RA which contains 2 Global Prefixes.
name: RA_GA0
src: TN's Link-local
dst: allnode
PXOPT: GA0
Action #2. TN transmits RA which contains 2 Global Prefixes.
name: RA_GA1_RT1
src: RT1's Link-local
dst: allnode
PXOPT: GA1
Judgement #3. NUT MUST transmit DAD NS for its autoconfigured Global address.
(* If the address is consisits of EUI64, as same as Link-local
address, This DAD MAY be omitted.)
name: DADNS_from_NUT_GA0Tgt
src: ::0
dst: solnode[NUT's tentative Global0]
TargetAddress: NUT's tentative Global0
Judgement #4. NUT MUST transmit DAD NS for its autoconfigured Global address.
(* If the address is consisits of EUI64, as same as Link-local
address, This DAD MAY be omitted.)
name: DADNS_from_NUT_GA1Tgt
src: ::0
dst: solnode[NUT's tentative Global1]
TargetAddress: NUT's tentative Global1
Action #3. TN transmits SOL NS to check if NUT's address is configured.
name: SOLNS_from_TN_GA0Tgt
src: TN's Link-local
dst: solnode[NUT's Global0]
TargetAddress: NUT's Global0
Judgement #5. NUT MUST transmit SOL NA for its autoconfigured Global address.
name:
NA_from_NUT_GA0Tgt,
NA_from_NUT_GA0Tgt_woTLL,
NA_from_GA0NUT_GA0Tgt,
NA_from_GA0NUT_GA0Tgt_woTLL,
NA_from_GA1NUT_GA0Tgt,
NA_from_GA1NUT_GA0Tgt_woTLL
src: NUT's any Unicast Address
dst: TN's Link-local
TargetAddress: NUT's Global0
RFlag: 0
SFlag: 1
OFlag: 1
TLLOPT: NUT's MAC address
(* TLLOPT may be omitted)
Action #4. TN transmits SOL NS to check if NUT's address is configured.
name: SOLNS_from_TN_GA1Tgt
src: TN's Link-local
dst: solnode[NUT's Global1]
TargetAddress: NUT's Global1
Judgement #6. NUT MUST transmit SOL NA for its autoconfigured Global address.
name:
NA_from_GA0NUT_GA1Tgt,
NA_from_GA0NUT_GA1Tgt_woTLL,
NA_from_NUT_GA1Tgt,
NA_from_NUT_GA1Tgt_woTLL,
NA_from_GA1NUT_GA1Tgt,
NA_from_GA1NUT_GA1Tgt_woTLL
src: NUT's any Unicast Address
dst: TN's Link-local
TargetAddress: NUT's Global1
RFlag: 0
SFlag: 1
OFlag: 1
TLLOPT: NUT's MAC address
(* TLLOPT may be omitted)
RFC2462
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5.5.3. Router Advertisement Processing
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For each Prefix-Information option in the Router Advertisement:
a) If the Autonomous flag is not set, silently ignore the Prefix Information option.
b) If the prefix is the link-local prefix, silently ignore the Prefix Information option.
c) If the preferred lifetime is greater than the valid lifetime, silently ignore the Prefix Information option. A node MAY wish to log a system management error in this case.
d) If the prefix advertised does not match the prefix of an address already in the list, and the Valid Lifetime is not 0, form an address (and add it to the list) by combining the advertised prefix with the link's interface identifier as follows:
| 128 - N bits | N bits | +---------------------------------------+------------------------+ | link prefix | interface identifier | +----------------------------------------------------------------+
If the sum of the prefix length and interface identifier length does not equal 128 bits, the Prefix Information option MUST be ignored. An implementation MAY wish to log a system management error in this case. It is the responsibility of the system administrator to insure that the lengths of prefixes contained in Router Advertisements are consistent with the length of interface identifiers for that link type. Note that interface identifiers will typically be 64-bits long and based on EUI-64 identifiers as described in [ADDR-ARCH].
If an address is formed successfully, the host adds it to the list of addresses assigned to the interface, initializing its preferred and valid lifetime values from the Prefix Information option.
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detail of v6eval tool option: see perldoc V6evalTool.pm, perldoc V6evalRemote.pm