ProSafe Wireless-N 8-Port Gigabit VPN Firewall FVS318N

2.Select the Enable Automatic Tunneling check box.

3.Click Apply to save your changes.

Configure ISATAP Automatic Tunneling

If your network is an IPv4 network or IPv6 network that consists of both IPv4 and IPv6 devices, you need to 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 Manage the IPv6 LAN on page 73.

Note: If you do not use a stateful DHCPv6 server in your LAN, you need to 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 Manage the IPv6 LAN on page 73.

The wireless 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.

To configure an ISATAP tunnel:

1. Select Network Configuration > WAN Settings > ISATAP Tunnels. The ISATAP Tunnels screen displays. (The following figure shows some examples.)

IPv4 and IPv6 Internet and Broadband Settings

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NETGEAR FVS318N manual Configure Isatap Automatic Tunneling, Select the Enable Automatic Tunneling check box
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