IPv6RD 
To access the IPv6RD page, click on the Setup menu link at the top, and then click on the IPv6RD menu link on the left. 
IPv6rd specifies a protocol mechanism to deploy IPv6 to sites via a service provider's (SP's) IPv4 network. 
 
On this page we can configure services related to the IPv6RD services used by this 
product. 
 
In this section, the following parameters can be configured: 
6RD Tunnel: Select this option to disable the 6RD tunnel option. 
6rd IPv6 Prefix: Enter the 6rd IPv6 Prefix here. 
IPv4 Addr: Enter the IPv4 address here. 
IPv4 Mask: Enter the IPv4 mask address here. 
6RD Border Relay IPv4Addr: Enter the 6RD border relay IPv4 address here. 
6rd Prefix Delegation: Show the 6rd prefix delegation.