Xiamen Caimore Communication Technology Co. Ltd. CM520-8AF Manuale Utente

   

   

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Tel:+86 592 5901215                                                                  web:www.caimore.com/emain.asp 

 

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SA lifetime (s): phase negotiation valid time 

  Key：  when Pre-shared Key，it is shared key. 
  Password：  the secret key is the one of certification when the authentication 

mode is Certificate X509 

Phase 2：

Phase 2 is protected by phase 1, any message that was not protected by 

phase 1 SA will be refused. In phase 2, negotiate the communication protocol fast, 

changing secret key and establish communication. 
DH group：  Group1  、Group2  、Group5  、Group14  、Group15  、Group16  、 

Group17 and Group18 

Lifetime(S): Phase negotiation valid time. 

  Cipher：  DES, 3DES, AES and AES128 
  Hash：SHA1 and MD5 

Other 

  DPD Timeout(s)：  the default time of dps timeout is 120s. 
  IPComp:    IP Payload Compression Protocol 

L2TP （Layer Two Tunneling Protocol，the second layer channel protocol）is one 

kind of VPDN technology, used to the send layer data channel transmission. That is,   
encapsulating  the  second  data  unit,  such  as  point-to-point  protocol  (PPP)  data  unit,   
into IP or UDP load to go through switch network (such as internet) successfully, then 
arrive. 

 

Picture 4-3-5