Netgear FVS318Gv2 – ProSAFE VPN Firewall Series Reference Manual

Select Network Configuration > WAN Settings > 6 to 4 Tunneling.

Select the Enable Automatic Tunneling check box.

Click the Apply button.

Your changes are saved.

If your network is an IPv4 network or IPv6 network that consists of both IPv4 and IPv6 
devices, you must make sure that the IPv6 packets can travel over the IPv4 intranet by 
enabling and configuring Intra-Site Automatic Tunnel Addressing Protocol (ISATAP) 
tunneling.

ISATAP is a LAN tunnel mechanism in which the IPv4 network functions as a virtual IPv6 
local link. Each IPv4 address is mapped to a link-local IPv6 address, that is, the IPv4 address 
is used in the interface portion of the IPv6 address. ISATAP tunneling is used intra site, that 
is, between addresses in the LAN. For more information about link-local addresses, see 

on page 78.

If you do not use a stateful DHCPv6 server in your LAN, you must configure the Router 
Advertisement Daemon (RADVD) and set up ISATAP advertisement prefixes (which are 
referred to as Global/Local/ISATAP prefixes) for ISATAP tunneling to function correctly. For 
more information, see 

on page 78.

The VPN firewall determines the link-local address by concatenating the IPv6 address with 
the 32 bits of the IPv4 host address:

For a unique global address:



fe80:0000:0000:0000:0000:5efe (or fe80::5efe) is concatenated with the IPv4 address. 
For example, fe80::5efe with 10.29.33.4 becomes fe80::5efe:10.29.33.4, or in 
hexadecimal format, fe80::5efe:a1d:2104.

For a private address:



fe80:0000:0000:0000:0200:5efe (or fe80::200:5efe) is concatenated with the IPv4 
address. For example, fe80::200:5efe with 192.168.1.1 becomes 
fe80::200:5efe:192.168.1.1, or in hexadecimal format, fe80::200:5efe:c0a8:101.



Log in to the unit:
a. In the address field of any of the qualified web browsers, enter https://192.168.1.1.

The NETGEAR Configuration Manager Login screen displays.