Netgear FVS318N User Manual

Modify the settings that you wish to change (see the previous table).

Click Apply to save your changes. The modified IKE policy is displayed in the List of IKE 
Policies table.

Manage VPN Policies 

You can create two types of VPN policies. When you use the VPN Wizard to create a VPN 
policy, only the Auto method is available.

Manual. You manually enter all settings (including the keys) for the VPN tunnel on the 
wireless VPN firewall and on the remote VPN endpoint. No third-party server or 
organization is involved.

Auto. Some settings for the VPN tunnel are generated automatically through the use of 
the IKE (Internet Key Exchange) Protocol to perform negotiations between the two VPN 
endpoints (the local ID endpoint and the remote ID endpoint). You still need to manually 
enter all settings on the remote VPN endpoint (unless the remote VPN endpoint also has 
a VPN Wizard).

In addition, a certification authority (CA) can also be used to perform authentication (see 

on page 313). For gateways to use a CA to 

perform authentication, each VPN gateway needs to have a certificate from the CA. For each 
certificate, there is both a public key and a private key. The public key is freely distributed, 
and is used by any sender to encrypt data intended for the receiver (the key owner). The 
receiver then uses its private key to decrypt the data (without the private key, decryption is 
impossible). The use of certificates for authentication reduces the amount of data entry that is 
required on each VPN endpoint. 

The VPN Policies screen allows you to add additional policies—either Auto or Manual—and 
to manage the VPN policies already created. You can edit policies, enable or disable policies, 
or delete them entirely. These are the rules for VPN policy use:

Traffic covered by a policy is automatically sent through a VPN tunnel. 

When traffic is covered by two or more policies, the first matching policy is used. (In this 
situation, the order of the policies is important. However, if you have only one policy for 
each remote VPN endpoint, then the policy order is not important.) 

The VPN tunnel is created according to the settings in the security association (SA). 

The remote VPN endpoint needs to have a matching SA; otherwise, it refuses the 
connection.

To access the VPN Policies screen, select VPN > IPSec VPN > VPN Policies. In the upper 
right of the screen, the IPv4 radio button is selected by default. The VPN Policies screen 
displays the IPv4 settings. (The following figure shows some examples.) To display the IPv6 
settings on the IKE Policies screen, select the IPv6 radio button.