IPv6 tunnel

[Interoperability Test Scenario]

Last Update: February 26, 2000

This scenario verifies interoperability when the target ROUTER is attached to the network which consist of host and router with IPv6 protocol stack.

Subjects:
Verification that a router makes tunnel between opposite router.
Verification Points:

whether Router can make tunnel.
whether Router can transmit packets to an opposite router through the tunnel.

Physical Network Configuration:

                                                      HOST-2
                                                        |
 (Net-w) (Prefix 3ffe:501:481d:f004::/64)        ---+---+----
         (10.0.4.0/24)                              |
                                                    |(I/F-3w)
                                                 ROUTER-3     <--IPv6/IPv4
                                                    |(I/F-3x)
                                                    |
 (Net-x) (Prefix 3ffe:501:481d:f003::/64) --+-------+----
         (10.0.3.0/24)                      |
                                            |(I/F-2x)
                                         ROUTER-2   <-- IPv6
                                            |(I/F-2y)
                                            |
 (Net-y) (Prefix 3ffe:501:481d:f002::/64) --+-------+----
         (10.0.2.0/24)                              |
                                                    |(I/F-1y)
                                                 ROUTER-1     <--IPv6/IPv4
                                                    |(I/F-1z)
 (Net-z) (Prefix 3ffe:501:481d:f001::/64)           |
         (10.0.1.0/24)                           ---+-----+--
                                                          |
                                                        HOST-1
HOST-2           10.0.4.102
ROUTER-3(I/F-3w) 10.0.4.3
ROUTER-3(I/F-3x) 3ffe:501:481d:f003::3/3ffe:501:481d:f003::33
ROUTER-1(I/F-1y) 3ffe:501:481d:f002::1/3ffe:501:481d:f002::11
ROUTER-1(I/F-1z) 10.0.1.1
HOST-1           10.0.1.101

Network	Prefix	Network media
Net-w	3ffe:501:481d:f004::/64 10.0.4.0/24	Ethernet 10BASE-T
Net-x	3ffe:501:481d:f003::/64 10.0.3.0/24	Ethernet 10BASE-T
Net-y	3ffe:501:481d:f002::/64 10.0.2.0/24	Ethernet 10BASE-T
Net-z	3ffe:501:481d:f001::/64 10.0.1.0/24	Ethernet 10BASE-T

Test Machines:

Machine Comments Initial status Configuration

HOST-2 Reference Machine Attached to Net-w with power turned off. -

ROUTER-3 Reference Machine Power is turned off.
I/F-3x is attached to Net-x, while I/F-3w is attached to Net-w. IPv6/IPv4 Router.
I/F-3x has alias addresses
3ffe:501:481d:f003::3 and 3ffe:501:481d:f003::33.
Configure to use tunnel to transmit a packet to Net-z (3ffe:501:481d:f001::/64) with tunnel-2,
(SRC=[3ffe:501:481d:f003::3] / DST=[3ffe:501:481d:f002::1]).
Static routing
Sends RA to Net-x and Net-w.

ROUTER-2 Reference Machine Power is turned off.
I/F-2y is attached to Net-y, while I/F-2x is attached to Net-x. IPv6 Router.
Sends RA to Net-y and Net-x.

ROUTER-1 Target Machine Power is turned off.
I/F-1z is attached to Net-z, while I/F-1y is attached to Net-y. IPv6/IPv4 Router.
I/F-1y has alias addresses
3ffe:501:481d:f002::1 and 3ffe:501:481d:f002::11.
Configure to use tunnel to transmit a packet to Net-w (3ffe:501:481d:f004::/64) with tunnel-1,
(SRC=[3ffe:501:481d:f002::1] / DST=[3ffe:501:481d:f003::3]).
Static routing.
Sends RA to Net-z and Net-y.

HOST-1 Reference Machine is attached to Net-z with power turned off. -

Detect Protocols:
ICMP
Applications:
ping program (ping)
Interoperability Check:

No Action Criteria Comments

Initialization

1 Boot ROUTER-1. - -

2 Boot ROUTER-2 - -

3 Boot ROUTER-3 *Check the Routing table of Router-1. -

4 Boot HOST-1 - -

5 Boot HOST-2 - -

IPv6 over IPv6

6 At HOST-1, run "ping" to HOST-2's IPv6 global address. *HOST-1 sends ICMP Echo Request to HOST-2 (global).
(Through tunnel-1)
*HOST-1 receives ICMP Echo Reply from HOST-2 (global).
(Through tunnel-2)
Packets pass through the tunnel between ROUTER-1 and ROUTER-3.
Ping payload size is 1452 byte.
ROUTER-1 sends packet too big message to HOST-1, if HOST-1 has the packet sent and its size is greater than tunnel MTU.

IPv6 tunnel over IPv6 (Duplicated tunnel, IPv6 over IPv6 over IPv6)

7 At ROUTER-1, configure tunnel-3,
(SRC=[3ffe:501:481d:f002::11] / DST=[3ffe:501:481d:f003::33]), and configure to use the tunnel when ROUTER-1 transmits a packet to [3ffe:501:481d:f003::3].
- -

8 At ROUTER-3, configure tunnel-4, (SRC=[3ffe:501:481d:f003::33] / DST=[3ffe:501:481d:f002::11]), and configure to use the tunnel when ROUTER-2 transmits a packet to [3ffe:501:481d:f002::1].
- -

9 At HOST-1, run "ping" to HOST-2's IPv6 global address. *HOST-1 sends ICMP Echo Request to HOST-2 (global).
(Through tunnel-1 over tunnel-3)
*HOST-1 receives ICMP Echo Reply from HOST-2 (global).
(Through tunnel-2 over tunnel-4)
Packets pass through the tunnel between ROUTER-1 and ROUTER-3.
Ping payload size is 1452 byte.
ROUTER-1 sends packet too big message to HOST-1, if HOST-1 has the packet sent and its size is greater than tunnel MTU.

IPv4 over IPv6

10 At ROUTER-1, configure NOT to use tunnel-3 to transmit a packet to [3ffe:501:481d:f003::3]
- -

11 At ROUTER-3, configure NOT to use tunnel-4 to transmit a packet to [3ffe:501:481d:f002::1]
- -

12 At ROUTER-1, configure to use tunnel-1 to transmit a packet to [10.0.4.0/24]
- -

13 At ROUTER-3, configure to use tunnel-2 to transmit a packet to [10.0.1.0/24]
- -

14 At HOST-1, run "ping" to HOST-2's IPv4 address.(10.0.4.102) *HOST-1 sends ICMP Echo Request to HOST-2 (global).
(Through tunnel-1)
*HOST-1 receives ICMP Echo Reply from HOST-2 (global).
(Through tunnel-2)
Packets pass through the tunnel between ROUTER-1 and ROUTER-3.
Ping payload size is 1472 byte.

IPv6 tunnel over IPv6 (Duplicated tunnel, IPv4 over IPv6 over IPv6)

15 At ROUTER-1, configure tunnel-3, (SRC=[3ffe:501:481d:f002::11] / DST=[3ffe:501:481d:f003::33]), and configure to use the tunnel when ROUTER-1 transmits a packet to [3ffe:501:481d:f003::3].
- -

16 At ROUTER-3, configure tunnel-4, (SRC=[3ffe:501:481d:f003::33] / DST=[3ffe:501:481d:f002::11]), and configure to use the tunnel when ROUTER-2 transmits a packet to [3ffe:501:481d:f002::1].
- -

17 At HOST-1, run "ping" to HOST-2's IPv4 address.(10.0.4.102) *HOST-1 sends ICMP Echo Request to HOST-2 (global).
(Through tunnel-1 over tunnel-3)
*HOST-1 receives ICMP Echo Reply from HOST-2 (global).
(Through tunnel-2 over tunnel-4)
Packets pass through the tunnel between ROUTER-1 and ROUTER-3.
Ping payload size is 1472 byte.

Duplicated Address Detection (DAD)
Source Address Selection (SAS)
Multicast Listener Discovery Report (MLDR)
Neighbor Unreachability Detection (NUD)
Mark"*"with no number means that we are going to judge that subject.

Machine	Comments	Initial status	Configuration
HOST-2	Reference Machine	Attached to Net-w with power turned off.	-
ROUTER-3	Reference Machine	Power is turned off. I/F-3x is attached to Net-x, while I/F-3w is attached to Net-w.	IPv6/IPv4 Router. I/F-3x has alias addresses 3ffe:501:481d:f003::3 and 3ffe:501:481d:f003::33. Configure to use tunnel to transmit a packet to Net-z (3ffe:501:481d:f001::/64) with tunnel-2, (SRC=[3ffe:501:481d:f003::3] / DST=[3ffe:501:481d:f002::1]). Static routing Sends RA to Net-x and Net-w.
ROUTER-2	Reference Machine	Power is turned off. I/F-2y is attached to Net-y, while I/F-2x is attached to Net-x.	IPv6 Router. Sends RA to Net-y and Net-x.
ROUTER-1	Target Machine	Power is turned off. I/F-1z is attached to Net-z, while I/F-1y is attached to Net-y.	IPv6/IPv4 Router. I/F-1y has alias addresses 3ffe:501:481d:f002::1 and 3ffe:501:481d:f002::11. Configure to use tunnel to transmit a packet to Net-w (3ffe:501:481d:f004::/64) with tunnel-1, (SRC=[3ffe:501:481d:f002::1] / DST=[3ffe:501:481d:f003::3]). Static routing. Sends RA to Net-z and Net-y.
HOST-1	Reference Machine	is attached to Net-z with power turned off.	-

No	Action	Criteria	Comments
Initialization
1	Boot ROUTER-1.	-	-
2	Boot ROUTER-2	-	-
3	Boot ROUTER-3	*Check the Routing table of Router-1.	-
4	Boot HOST-1	-	-
5	Boot HOST-2	-	-
IPv6 over IPv6
6	At HOST-1, run "ping" to HOST-2's IPv6 global address.	HOST-1 sends ICMP Echo Request to HOST-2 (global). (Through tunnel-1)* HOST-1 receives ICMP Echo Reply from HOST-2 (global). (Through tunnel-2)*	Packets pass through the tunnel between ROUTER-1 and ROUTER-3. Ping payload size is 1452 byte. ROUTER-1 sends packet too big message to HOST-1, if HOST-1 has the packet sent and its size is greater than tunnel MTU.
IPv6 tunnel over IPv6 (Duplicated tunnel, IPv6 over IPv6 over IPv6)
7	At ROUTER-1, configure tunnel-3, (SRC=[3ffe:501:481d:f002::11] / DST=[3ffe:501:481d:f003::33]), and configure to use the tunnel when ROUTER-1 transmits a packet to [3ffe:501:481d:f003::3].	-	-
8	At ROUTER-3, configure tunnel-4, (SRC=[3ffe:501:481d:f003::33] / DST=[3ffe:501:481d:f002::11]), and configure to use the tunnel when ROUTER-2 transmits a packet to [3ffe:501:481d:f002::1].	-	-
9	At HOST-1, run "ping" to HOST-2's IPv6 global address.	HOST-1 sends ICMP Echo Request to HOST-2 (global). (Through tunnel-1 over tunnel-3)* HOST-1 receives ICMP Echo Reply from HOST-2 (global). (Through tunnel-2 over tunnel-4)*	Packets pass through the tunnel between ROUTER-1 and ROUTER-3. Ping payload size is 1452 byte. ROUTER-1 sends packet too big message to HOST-1, if HOST-1 has the packet sent and its size is greater than tunnel MTU.
IPv4 over IPv6
10	At ROUTER-1, configure NOT to use tunnel-3 to transmit a packet to [3ffe:501:481d:f003::3]	-	-
11	At ROUTER-3, configure NOT to use tunnel-4 to transmit a packet to [3ffe:501:481d:f002::1]	-	-
12	At ROUTER-1, configure to use tunnel-1 to transmit a packet to [10.0.4.0/24]	-	-
13	At ROUTER-3, configure to use tunnel-2 to transmit a packet to [10.0.1.0/24]	-	-
14	At HOST-1, run "ping" to HOST-2's IPv4 address.(10.0.4.102)	HOST-1 sends ICMP Echo Request to HOST-2 (global). (Through tunnel-1)* HOST-1 receives ICMP Echo Reply from HOST-2 (global). (Through tunnel-2)*	Packets pass through the tunnel between ROUTER-1 and ROUTER-3. Ping payload size is 1472 byte.
IPv6 tunnel over IPv6 (Duplicated tunnel, IPv4 over IPv6 over IPv6)
15	At ROUTER-1, configure tunnel-3, (SRC=[3ffe:501:481d:f002::11] / DST=[3ffe:501:481d:f003::33]), and configure to use the tunnel when ROUTER-1 transmits a packet to [3ffe:501:481d:f003::3].	-	-
16	At ROUTER-3, configure tunnel-4, (SRC=[3ffe:501:481d:f003::33] / DST=[3ffe:501:481d:f002::11]), and configure to use the tunnel when ROUTER-2 transmits a packet to [3ffe:501:481d:f002::1].	-	-
17	At HOST-1, run "ping" to HOST-2's IPv4 address.(10.0.4.102)	HOST-1 sends ICMP Echo Request to HOST-2 (global). (Through tunnel-1 over tunnel-3)* HOST-1 receives ICMP Echo Reply from HOST-2 (global). (Through tunnel-2 over tunnel-4)*	Packets pass through the tunnel between ROUTER-1 and ROUTER-3. Ping payload size is 1472 byte.