Test v6LC.2.2.17 - Router Advertisement Processing, IsRouter flag (Hosts Only)
Part B: RA with same Source Link-layer option as cached
Verify that a host properly updates the IsRouter flag in its Neighbor Cache upon receipt of a
Router Advertisement.
* [ND] Sections 6.3.4
* 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.
Router Advertisement A
IPv6 Header
Next Header: 58
Source Address: TR1's Link-local Address
|
Router Advertisement
Router Lifetime: 600 seconds
Reachable Time: 0 seconds
Retransmit Interval: 1 second
Source Link-layer Option |
Echo Request A
IPv6 Header
Next Header: 58
Source Address: TN2's off-link Global Address
Destination Address: HUT's Global Address
|
|
ICMPv6 Echo Request
|
Part B: RA with same Source Link-layer option as cached
8. TR1 transmits a Link-local Echo Request to the HUT.
9. TR1 answers any Neighbor Solicitations with a Neighbor Advertisement (R=0, S=1, O=1) to the
HUT.
10. Observe the packets transmitted by the HUT.
11. TR1 transmits Router Advertisement A with the same Source Link-layer option to the HUT.
12. Wait for the HUT to perform Duplicate Address Detection on its global address.
13. TN2 transmits Echo Request A to the HUT with a nexthop of TR1.
14. Observe the packets transmitted by the HUT.
Part B
Steps 10:
The HUT should transmit an Echo Reply to TR1's link local address and update it's
NCE to state REACHABLE. The HUT sets the isRouter flag to false.
Step 14:
The HUT sets the isRouter flag to true and transmits an Echo Reply to TN2's off-
link address with a next hop of TR1.
* None.