Test v6LC.2.3.11 - Neighbor Cache Updated from State INCOMPLETE (Hosts Only)
Part B: TLLA Option, No Redirected Packet Option, Link-layer Address Updated
Verify that a host properly updates its Neighbor Cache entry upon receipt of a valid ICMP
Redirect Message.
* [ND] Sections 8.3
* Packet generator
* Monitor to capture packets
Common Setup 1.1 is performed at the beginning of each test part. 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. The following table details the Redirect message transmitted in each Part:
| TLLA Option |
Redirected Packet Option |
New NC State |
Link-layer Address |
Part |
| Yes |
No |
STALE |
Updated |
B |
Part B: TLLA Option, No Redirected Packet Option, Link-layer Address Updated
8. TR1 forwards an Echo Request to the HUT. The Source Address is the off-link global address of
TN1. The Destination Address is the global address of the HUT.
9. Observe the packets transmitted by the HUT.
10. TR2 transmits a link-local Echo Request to the HUT. TR2 does not reply to Neighbor
Solicitations.
11. Observe the packets transmitted by the HUT.
12. TR1 transmits a Redirect message to the HUT. The ICMPv6 Destination Address is the global
address of TN2. The Target Address is the link-local address of TR2. The Redirect message
contains a Target Link-layer Address option or Redirected Packet option according to the table
above.
13. Observe the packets transmitted by the HUT.
Parts B through D
Step 9:
The HUT should respond to the Echo Request using TR1 as a first hop.
Step 11:
The HUT should send a multicast Neighbor Solicitation for TR2, indicating the
HUT has an NCE for TR2 in state INCOMPLETE.
Step 13:
Because the HUT's NCE for TR2 is in state STALE, the HUT should send an Echo
Reply to TR2 using the new Link-Layer address and enter state DELAY. After
DELAY_FIRST_PROBE_TIME, the HUT should send a unicast Neighbor Solicitation to
TR2.
* None.