NAME

hostSendRsAfterUnsolicitedRa - Verifying NUT send RSs after receiving unsolicited RAs

TARGET

Host only

INITIALIZATION

Reboot NUT.

TEST PROCEDURE

hostSendRsAfterUnsolicitedRa verifies that NUT send RSs After receiving unsolicited RAs.



  TN                     NUT
  --------------------------


  ==== Unsolicited RA ===>
       valid RA:
           src=TN's link-local
           dst=all-node
           w/ or w/o SLL
       invalid RA:


            :
            : A) TN sends unsolicited RAs repeatedly
            :    until receiving an RS.
            : B) TN discards NSs for DAD:
            :    src=unspecified, dst=solicited-node[NUT's link-local]
            :    target=NUT's link-local
            :    w/o SLLA
            :


  <=== Judgment #2: RS ====
       src=unspecified or NUT's link-local
       dst=all-router
       w/o or w/ SLLA


  <=== Judgment #2: RS ====
       src=unspecified or NUT's link-local
       dst=all-router
       w/o or w/ SLLA


  <=== Judgment #2: RS ====
       src=unspecified or NUT's link-local
       dst=all-router
       w/o or w/ SLLA

JUDGMENT

1. Sending RSs
                 TABLE.1 Received unsolicited RA vs. Send-gin RS
  =============================================================+=========
  Received unsolicited RA by NUT                               | Send RS
  -----------+----------+-------+-------------------+----------+ by the
  Src        | Dst      | SLLA  | Other             | Validity | NUT ?
  ===========+==========+=======+===================+==========+=========
  link-local | all-node | none  |                   | valid    | yes
  -----------+----------+-------+-------------------+----------+---------
  link-local | all-node | exist |                   | valid    | yes
  -----------+----------+-------+-------------------+----------+---------
  *global    | all-node | none  |                   | invalid  | yes
  -----------+----------+-------+-------------------+----------+---------
  link-local | all-node | none  | *hop limit=2      | invalid  | yes
  -----------+----------+-------+-------------------+----------+---------
  link-local | all-node | none  | *invalid checksum | invalid  | yes
  -----------+----------+-------+-------------------+----------+---------
  link-local | all-node | none  | *icmp code=1      | invalid  | yes
  ===========+==========+=======+===================+==========+=========


2. NUT sends the following RSs.


     2.1. The RSs are valid:
          A) src=unspecified, dst=all-router, w/o SLLA
          B) src=NUT's link-local, dst=all-router, w/o SLLA
          C) src=NUT's link-local, dst=all-router, w/ SLLA


     2.2. A number of the RSs <= MAX_RTR_SOLICITATIONS(3)


     2.3. Intervals between the RSs >= MAX_SOLICITATION_INTERVAL(1 sec.)

TERMINATION

  Send RA with RouterLifetime=0 to clear the Default Router List.

NOTE

  The test invokes the following command:
  - reboot

REFERENCE

RFC2461

6.3.7.  Sending Router Solicitations

   Once the host sends a Router Solicitation, and receives a valid
   Router Advertisement with a non-zero Router Lifetime, the host MUST
   desist from sending additional solicitations on that interface, until
   the next time one of the above events occurs.  Moreover, a host
   SHOULD send at least one solicitation in the case where an
   advertisement is received prior to having sent a solicitation.
   Unsolicited Router Advertisements may be incomplete (see Section
   6.2.3); solicited advertisements are expected to contain complete
   information.