Interface: Serial0/2/1 path MTU:

by the security gateway device  displa ipsec sa  command displays the following order information, the information is understood by  ______  .

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Interface: Serial0/2/1 path MTU: 1500

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IPsec polic name: "1"

sequence number: 1

mode: isakmp

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connection id: 5

encapsulation mode: transport

perfect forward secrec: None

tunnel:

local address: 10.2.1.1

remote address: 10.2.1.2

Flow:

sour addr: 10.1.1.0/255.255.255.0 port: 0 protocol: IP

dest addr: 10.3.1.0/255.255.255.0 port: 0 protocol: IP

[inbound ESP SAs]

spi: 909448761  (  0x36351639  )

proposal: ESP-ENCRPT-DES ESP-AUTH-MD5

sa remaining ke duration  (  btes/sec  )  : 1887435204/83

spi: 909448761  (  0x36351639  )

proposal: ESP-ENCRPT-DES ESP-AUTH-MD5

sa remaining ke duration  (  btes/sec  )  : 1887435204/83

max received sequence-number: 19

udp encapsulation used for nat traversal: N

[outbound ESP SAs]

spi: 1583842120  (  0x5e678348  )

proposal: ESP-ENCRPT-DES ESP-AUTH-MD5

sa remaining ke duration  (  btes/sec  )  : 1887435204/83

max sent sequence-number: 20

udp encapsulation used for nat traversal: N

A . This security policy work in tunnel mode

B. This security policy requires manual configuration of parameters such as keys,  SPI  , security protocols and algorithms

C. This security policy works in transmission mode

D. This security policy requires the use of  IKE  dynamic negotiation key,  SPI  , security protocol and algorithm and other parameters

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