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IPv4inIPv6 
Click IPv4inIPv6 and Add to enter the following screen: 
 
  Tunnel Name: Specify the name of the tunnel. 
  Mechanism: Currently, only DS-Lite configuration is supported.       
  Associated WAN Interface: Specify the WAN interface of the tunnel.   
  Associated LAN Interface: Specify the LAN interface of the tunnel.   
  Manual: If you select Manual, enter the AFTR information also: 
  Automatic: If Automatic is selected, no configurations are required. 
  Apply/Save: Click to apply and save your settings. 
 
4.2.14 Certificate 
This section explains the following information: 
• Local Certificates 
• Trusted CA (Certificate Authority) Certificates 
Local Certificates 
Here you can add, view or remove certificates. Local certificates are used by peers to verify your identity. Maximum 4