Test v6LC.2.1.8 - Neighbor Solicitation Processing, No NCE Part A: Unicast Neighbor Solicitation
Verify that a node properly updates its neighbor cache upon receipt of neighbor solicitations when there is no NCE exists for that neighbor.
* [IPv6-ARCH] Section 2, 2.8 * [ND] Sections 7.2.3 and 7.2.4
* Packet generator * Monitor to capture packets
No Common Test Setup is performed. Wait at least 3 seconds (MAX_MULTICAST_SOLICIT * RETRANS_TIMER) after any previous cleanup to make sure all previous NCE's are in state No NCE. The Common Test Cleanup procedure is performed after each part.
Neighbor Solicitation A IPv6 Header
Next Header: 58
Destination Address: NUT's Link-local Address
Source Address: TN1's Link-local AddressNeighbor Solicitation
Target Address: NUT's Link-local Address
Souce Link-layer: Address: TN1's Ethernet address
Neighbor Sol. B IPv6 Header
Next Header: 58
Destination Address: NUT's Solicited-node Multicast
Source Address: TN1's Link-local AddressNeighbor Sol.
Target Address: NUT's Link-local Address
Souce Link-layer: Address: TN1's Ethernet address
Part A: Unicast Neighbor Solicitation 1. TN1 transmits Neighbor Solicitation A. 2. TN1 transmits an Echo Request to the NUT. 3. Check the NCE of TN1 on the NUT and observe packets transmitted by the NUT.
Part A Step 3: The NUT should create a Neighbor Cache Entry for TN1 and set the state of the Entry to STALE. The NUT should reply to Neighbor Solicitation A by sending a Neighbor Advertisement. After responding to the Neighbor Solicitation, the NUT should respond to the Echo Request by sending an Echo Reply and set the state of the Entry to DELAY. After DELAY_FIRST_PROBE_TIME, the NUT should send a unicast Neighbor Solicitation to TN1.
* None.