NAME

  RTU_A_In_DM_DSTH_optlen - Router Tunnel Mode AH Inbound, Detect modification of DstOpt header option len before AH

TARGET

  Router

SYNOPSIS

  RTU_A_In_DM_DSTH_optlen.seq [-tooloption ...] -pkt RTU_A_DM_DSTH_optlen.def
    -tooloption : v6eval tool option
  See also HTR_A_common.def and HTR_common.def

INITIALIZATION

For details of Network Topology, see 00README

Set NUT's SAD and SPD as following: 

                          (Link0)  (Link1)
            NET4   NET2      NET0   NET1
  HOST1_NET4 -- SG1 -- Router -- NUT -- HOST1_NET1
                 =====tunnel======>

Security Association Database (SAD)

source address SG1_NET2
destination address NUT_NET0
SPI 0x1000
mode tunnel
protocol AH
AH algorithm HMAC-MD5
AH algorithm key 0123456789ABCDEF

Security Policy Database (SPD)

No SPD entry

TEST PROCEDURE

 Tester                      Target                      Tester
              (Link0)                     (Link1)
   |                           |                           |
 Subtest No.1 "option bit 000: option len is immutable"
   |                           |                           |
   |-------------------------->|                           |
   |      ICMP Echo Request    |                           |
   |  within [DSTH][AH] tunnel |                           |
   |                           |-------------------------->|
   |                           |      ICMP Echo Request    |
   |                           |        Judgement #1       |
   |                           |                           |
   |-------------------------->|                           |
   |      ICMP Echo Request    |                           |
   |  within [DSTH][AH] tunnel |                           |
   |  (option len of DSTH is modified 0x04->0x02)          |
   |                           | (---------------------->) |
   |                           |     No ICMP Echo Request  |
   |                           |        Judgement #2       |
   |                           |                           |
   v                           v                           v
 Subtest No.2 "option bit 001: option len is immutable"
   |                           |                           |
   |-------------------------->|                           |
   |      ICMP Echo Request    |                           |
   |  within [DSTH][AH] tunnel |                           |
   |  (option len of DSTH is modified 0x04->0x02)          |
   |                           | (---------------------->) |
   |                           |     No ICMP Echo Request  |
   |                           |        Judgement #3       |
   |                           |                           |
   v                           v                           v

ICMP Echo Request within [DSTH][AH] tunnel to Link0

IP Header Source Address SG1_NET2
Destination Address NUT_NET0
Destination Options Header Type 0x02
Data Length 4
Data 0x0f0f0000
AH SPI 0x1000
Sequence Number 1
Algorithm HMAC-MD5
Key 0123456789ABCDEF
IP Header Source Address HOST1_NET4
Destination Address HOST1_NET1
ICMP Type 128 (Echo Request)

ICMP Echo Request from Link1

IP Header Source Address HOST1_NET4
Destination Address HOST1_NET1
ICMP Type 128 (Echo Request)

Send ICMP Echo Request within [DSTH][AH] tunnel (option len of DSTH is modified 0x04->0x02) to Link0

IP Header Source Address SG1_NET2
Destination Address NUT_NET0
Destination Options Header Type 0x02
Data Length 2 (4 is original)
Data 0x0f0f
Type Pad1
Type Pad1
AH SPI 0x1000
Sequence Number 2
Algorithm HMAC-MD5
Key 0123456789ABCDEF
IP Header Source Address HOST1_NET4
Destination Address HOST1_NET1
ICMP Type 128 (Echo Request)

Send ICMP Echo Request within [DSTH][AH] tunnel (option type of DSTH is modified 0x04->0x02) to Link0

IP Header Source Address SG1_NET2
Destination Address NUT_NET0
Destination Options Header Type 0x22
Data Length 2 (4 is original)
Data 0x0f0f
Type Pad1
Type Pad1
AH SPI 0x1000
Sequence Number 3
Algorithm HMAC-MD5
Key 0123456789ABCDEF
IP Header Source Address HOST1_NET4
Destination Address HOST1_NET1
ICMP Type 128 (Echo Request)

JUDGEMENT

  Judgement #1:
      Receive ICMP Echo Request from Link1 (MUST)
  Judgement #2:
      Receive nothing (MUST)
  Judgement #3:
      Receive nothing (MUST)

SEE ALSO

  perldoc V6evalTool

  IPSEC.html IPsec Test Common Utility