NAME

  HTR_A_In_DM_IPv6H_hlim - Host Transport Mode AH Inbound, Undetect modification of IPv6 header hoplimit with AH

TARGET

  Host

SYNOPSIS

  HTR_A_In_DM_IPv6H_hlim.seq [-tooloption ...] -pkt HTR_A_DM_IPv6H.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:

              NET5      NET3
    HOST1_NET5 -- Router -- NUT
         -----transport----->

Security Association Database (SAD)

source address	HOST1_NET5
destination address	NUT_NET3
SPI	0x1000
mode	transport
protocol	AH
AH algorithm	HMAC-MD5
AH algorithm key	0123456789ABCDEF

Security Policy Database (SPD)

source address	HOST1_NET5
destination address	NUT_NET3
upper spec	any
direction	in
protocol	AH
mode	transport

TEST PROCEDURE

 Tester                      Target
   |                           |
   |-------------------------->|
   |      ICMP Echo Request    |
   |         with AH           |
   |                           |
   |<--------------------------|
   |      ICMP Echo Reply      |
   |        Judgement #1       |
   |                           |
   |-------------------------->|
   |      ICMP Echo Request    |
   |         with AH           |
   |  (HopLimit of IPv6H is modified)
   |                           |
   |<--------------------------|
   |      ICMP Echo Reply      |
   |        Judgement #2       |
   |                           |
   v                           v

Send ICMP Echo Request with AH
Receive ICMP Echo Reply
Send ICMP Echo Request with AH (HopLimit of IPv6H is modified)
Receive ICMP Echo Reply

ICMP Echo Request with AH

IP Header	Source Address	HOST1_NET5
	Destination Address	NUT_NET3
AH	SPI	0x1000
	Sequence Number	1
	Algorithm	HMAC-MD5
	Key	0123456789ABCDEF
ICMP	Type	128 (Echo Request)

ICMP Echo Reply

IP Header	Source Address	NUT_NET3
	Destination Address	HOST1_NET5
ICMP	Type	129 (Echo Reply)

ICMP Echo Request with AH (IPsrc of IPv6H is modified)

IP Header	Source Address	HOST1_NET5
	Destination Address	NUT_NET3
	Hop Limit	15 (64 is original)
AH	SPI	0x1000
	Sequence Number	2
	Algorithm	HMAC-MD5
	Key	0123456789ABCDEF
ICMP	Type	128 (Echo Request)

JUDGEMENT