NETGEAR UTM5EW-100NAS, STM150EW-100NAS manual Manage VPN Policies, VPN Policies Screen, 300

ProSecure Unified Threat Management (UTM) Appliance

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 UTM 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 enter all settings on the remote VPN endpoint manually (unless the remote VPN endpoint also has a VPN Wizard).

In addition, a certification authority (CA) can also be used to perform authentication (see Manage Digital Certificates for VPN Connections on page 419). For gateways to use a CA, 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.

VPN Policies Screen

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. The VPN Policies screen displays. (The following figure shows some examples.)

Virtual Private Networking Using IPSec, PPTP, or L2TP Connections

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