HTR_E_Out_Fragment - Host Transport Mode ESP Outbound Header Order (Fragment Header vs ESP)
Host
HTR_E_Out_Fragment.seq [-tooloption ...] -pkt HTR_E_Fragment.def -tooloption : v6eval tool option See also HTR_E_common.def and HTR_common.def
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 | NUT_NET3 |
destination address | HOST1_NET5 |
SPI | 0x1000 |
mode | transport |
protocol | ESP |
ESP algorithm | NULL |
ESP authentication | HMAC-MD5 |
ESP authentication key | 0123456789ABCDEF |
Security Policy Database (SPD)
source address | NUT_NET3 |
destination address | HOST1_NET5 |
upper spec | any |
direction | out |
protocol | ESP |
mode | transport |
Update Neighbor Cache
Tester Target | | |-------------------------->| | ICMP Echo Request | | 1st/2nd fragment | | | |<--------------------------| | ICMP Echo Reply | | 1st/2nd fragment | | (with ESP) | | | v v
ICMP Echo Request (original)
IP Header | Source Address | HOST1_NET5 |
Destination Address | NUT_NET3 | |
ICMP | Type | 128 (Echo Request) |
ICMP Echo Request (1st fragment)
IP Header | Source Address | HOST1_NET5 |
Destination Address | NUT_NET3 | |
Fragment Header | Next Header | 58 (ICMP) |
Offset | 0 | |
MFlag | 1 | |
Payload | data | 1st fragment of ICMP Echo Request |
ICMP Echo Request (2nd fragment)
IP Header | Source Address | HOST1_NET5 |
Destination Address | NUT_NET3 | |
Fragment Header | Next Header | 58 (ICMP) |
Offset | 181 | |
MFlag | 0 | |
Payload | data | 2nd fragment of ICMP Echo Request |
ICMP Echo Reply with ESP (original)
IP Header | Source Address | NUT_NET3 |
Destination Address | HOST1_NET5 | |
ESP | SPI | 0x1000 |
Algorithm | NULL | |
Authentication Algorithm | HAMC-MD5 | |
Authentication Key | 0123456789ABCDEF | |
ICMP | Type | 129 (Echo Reply) |
ICMP Echo Reply with ESP (1st fragment)
IP Header | Source Address | HOST1_NET5 |
Destination Address | NUT_NET3 | |
Fragment Header | Next Header | 50 (ESP) |
Offset | 0 | |
MFlag | 1 | |
Payload | data | 1st fragment of ICMP Echo Reply with ESP |
ICMP Echo Reply with ESP (2nd fragment)
IP Header | Source Address | HOST1_NET5 |
Destination Address | NUT_NET3 | |
Fragment Header | Next Header | 50 (ESP) |
Offset | 181 | |
MFlag | 0 | |
Payload | data | 2nd fragment of ICMP Echo Reply with ESP |
PASS: Both ICMP Echo Reply with ESP 1st and 2nd fragment received
perldoc V6evalTool
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