Linksys WRVS4400N Manual page 52

IP Mode
IPv4 Only. Select this option to use IPv4 on the Internet and local network.
Dual-Stack IP. Select this option to use IPv4 on the Internet and IPv4 and IPv6 on the
local network. Then select how the IPv6 hosts will connect to the Internet:
•
NAPT-PT This allows an IPv6-only host on your LAN to connect to IPv4-only hosts on the WAN
using address translation and protocol-translation (per RFC2766).
•
6to4 This allows your IPv6 network to connect to other IPv6 networks via tunnels through IPv4 (per
RFC3056). The remote router also needs to support 6to4 as well. Since the tunnel can be
automatically formed based on traffic, there is no limit on how many tunnels you can have.
6to4 Gateway Access Control By default, this route allows 6to4 connections to or from any other
6to4 gateway. By enabling this Access Control, you can have a better control which IPv6 clouds this
router is connecting to. A list of IP addresses can be entered in the Access List. Those should be the
IPv4 addresses of the remote 6to4 gateways.
•
Permit following sites: Allow only a limited set of 6to4 gateways to establish tunnel with our
router. Up to 20 sites can be configured and they can send traffic simultaneously.
•
Block following sites: Prevent a limited set of 6to4 gateways from establishing tunnels with our
router. Up to 20 sites can be configured.
Static 6to4 DNS entry: Allow users to configure static DNS entry to map hostname to IPv6 address.
This will provide a convenient way for users to access remote IPv6 hosts.
Click the Save Settings button to save the network settings or click the Cancel Changes
button to undo your changes. Help information is displayed on the right-hand side of the
screen, and click More for additional details.