NAME

  Test v6LC.2.2.22 - Processing Router Advertisements with Router Preference (Hosts Only)
  Part E - Change higher Route Preference

Purpose

  Verify that the HUT uses a Default Router List with preference values for Type B Host.

References

  * [RFC-4191] - Section 3.1

Resource Requirements

  * Packet generator
  * Monitor to capture packets

Test Setup

  No Common Test Setup is performed. 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
Destination Address:Multicast Address

Router Advertisement
Router Preference: [See Below]

Source Link-layer Address Option

Router Advertisement B
IPv6 Header
Next Header: 58
Source Address: TR2's Link Local Address Destination Address:Multicast Address

Router Advertisement
Router Preference: [See Below]

Source Link-layer Address Option

Packet A
IPv6 Header
Next Header: 58
Source Address: TN2's Global Address
Destination Address: HUT's Global Address

ICMPv6 Echo Request

Packet A
IPv6 Header Next Header: 58 Source Address: TN2's Global Address Destination Address: HUT's Global Address
ICMPv6 Echo Request

Procedure

  Part E
   17. TR1 transmits a Router Advertisement A with Default Router Preference set to Low (11).
   18. TR2 transmits a Router Advertisement B with Default Router Preference set to Medium (00).
   19. TR1 forwards an Echo Request from TN2 to the NUT.
   20. TR1 transmits a Router Advertisement A with Default Router Preference set to High (01).
   21. TR1 forwards an Echo Request from TN2 to the NUT.

Observable Results

  Part E
   Steps 19:
   The NUT should respond to the Echo Request with an Echo Reply with a next-hop of TR2.
   Steps 21:
   The NUT should respond to the Echo Request with an Echo Reply with a next-hop of TR1.

Possible Problems

  * None.