NAME

  Test v6LC.2.2.23 - Processing Router Advertisment with Route Information Option (Hosts Only)
  Part F - PRF change in Route Information Option

Purpose

  Verify that the HUT uses a Route Information Options to choose the next-hop.

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 C
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

Route Information Option Prefix Length: [See Below] PRF: [See Below] Route Lifetime: [See Below] Prefix: 3ffe:501:ffff:102::

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

Route Information Option Prefix Length: [See Below] PRF: [See Below] Route Lifetime: [See Below] Prefix: 3ffe:501:ffff:102::

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 F
   16. TR1 advertises Router Advertisement C with Route Information Option with the following information:
        Length: 2
        Prefix Length: 64
        PRF: Low
        Lifetime: 30 seconds
        Prefix:3ffe:501:ffff:102::

   17. TR2 advertises Router Advertisement B with Route Information Option with the following information:
        Length: 2
        Prefix Length: 64
        PRF: medium
        Lifetime: 30 seconds
        Prefix:3ffe:501:ffff:102::

   18. TR1 forwards an Echo Request from TN2 with a source address of 3ffe:501:ffff:102::2 to the NUT. 
   19. TR1 advertises Router Advertisement C with Route Information Option with the following information:
        Length: 2
        Prefix Length: 64
        PRF: High
        Lifetime: 30 seconds
        Prefix:3ffe:501:ffff:102::

   20. TR1 forwards an Echo Request from TN2 with a source address of 2001:2:0:2000::2 to the NUT.

Observable Results

   Steps 18:
   The NUT should respond to the Echo Request with an Echo Reply with a next-hop of TR2.
   Steps 20:
   The NUT should respond to the Echo Request with an Echo Reply with a next-hop of TR1.

Possible Problems

  * None.