NAME

V6LC_2_1_8_H - Option of Length 0

TARGET

Host/Router

TOPOLOGY

    TN     NUT
    |       |
----+-------+--- Link0

Link0	link-local	fe80::/64
TN	link-local	fe80::<TnDef.Link0_addr>
	ether	<TnDef.Link0_addr>
NUT	link-local	fe80::<NutDef.Link0_addr>
	ether	<NutDef.Link0_addr>

SETUP

none

INITIALIZATION

none

TEST PROCEDURE

- Verify that NUT ignores invalid NS

    TN     NUT
    |       |
    | ----> | NS
    |       |
    *       | Observe any packets for (RETRANS_TIMER) [Judgment #1]
    |       |
    | ----> | Echo Request
    |   <-- | NS (multicast) [Judgment #2]
    |   <-- | NS (multicast)
    |   <-- | NS (multicast)
    |       |
    V       V

    State: NONE (TN) (link-local)

1. Send NS

        IPv6 header
            hop limit   = 255
            source      = TN  (link-local)
            destination = NUT (link-local)
        NS
            target      = NUT (link-local)
        SLL option
            address     = TN  (link-local)
        TLL option
            length      = 0
            address     = NUT (link-local)

2. Observe any packets for (RETRANS_TIMER) [Judgment #1]

        Node constants:
            RETRANS_TIMER: 1,000 milliseconds

3. Send Echo Request

        IPv6 header
            source      = TN  (link-local)
            destination = NUT (link-local)
        Echo Request

    State: INCOMPLETE (TN) (link-local)

4. Observe MAX_MULTICAST_SOLICIT NSs [Judgment #2]

        IPv6 header
            hop limit   = 255
            source      = NUT (link-local)
            destination = TN  (solicited-node multicast address)
        NS
            target      = TN  (link-local)
        SLL option

        Node constants:
            MAX_MULTICAST_SOLICIT: 3 transmissions

    State: NONE (TN) (link-local)

JUDGEMENT

[Judgment #1] NUT must not transmit any packets
[Judgment #2] NUT must transmit 3 NSs to TN (solicited-node multicast address)

CLEANUP

none

REFERENCE

RFC 2461 - Neighbor Discovery for IPv6