System information
 B&B Electronics, Inc.    SPECTRE Configuration Manual 
42 
SPECTRE_Configuration_Manual_2912m 
www.bb-elec.com 
www.bb-europe.com 
but encryption will set permanently on 3DES-MD5. 
Authenticate Mode 
Defines the authentication mode:  
  Pre-shared key - shared key for both sides. 
  X.509 Certificate - 
Pre-shared Key 
Shared key for both sides of the tunnel 
CA Certificate 
This certificate is necessary for Authentication mode x.509. 
Remote Certificate 
This certificate is necessary for Authentication mode x.509. 
Local Certificate 
This certificate is necessary for Authentication mode x.509. 
Local Private Key 
This private key is necessary for Authentication mode x.509. 
Local Passphrase 
This Local Passphrase is necessary for Authentication mode x.509. 
Extra Options 
Use  this  parameter    to  define  additional  parameters  of  the  IPsec 
tunnel, for example security parameters etc. 
Table 30: IPsec tunnel configuration 
The certificates and private keys have to be in PEM format. 
The random time, after which it will exchange new keys, is defined as follows: 
Lifetime - (Rekey margin + random value in range (from 0 to Rekey margin * Rekey Fuzz/100)) 
By default, the time for the exchange of keys is between: 
  Minimum time:  1h - (9m + 9m) = 42m 
  Maximum time:  1h - (9m + 0m) = 51m 
In most cases, the settings should be left at their default values. 










