Note: Currently only IPv6 Rapid Deployment (6rd) is supported. 
 
Associated WAN Interface: The WAN interface associated with the 6 in 4 tunnel. 
Choose Manual to enter the 6 in 4 tunnel information manually, and choose 
Automatic to input it manually. 
 
6 in 4 tunnel information automatically. 
IPv4 Mask Length: The IPv4 mask length for the 6 in 4 tunnel. 
6rd Prefix with 
Prefix Length: The 6rd prefix and prefix length to use with the 6 in 4 tunnel. 
Border Relay IPv4 
Address: The border relay IPv4 address for the 6 in 4 tunnel. 
 
Click Apply to apply the settings and click Refresh to refresh the page. 
 
 
Generic Routing Encapsulation 
This allows you to create a Generic Routing Encapsulation (GRE) tunnel that can tunnel multiple traffic types. 
 
 
 
 
 
 
 
 
 
 
 
Click Add to add a new GRE tunnel.