23.2 Configuration of VPN clients
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## 23.2 Configuration of VPN clients

The following conditions must be met to enable connection of remote clients to local networks via encrypted channels:

- The Kerio VPN Client must be installed at remote clients (for detailed description, refer to a stand-alone document, Kerio VPN Client — User Guide).

- Users whose accounts are used for authentication to Kerio VPN Client must possess rights enabling them connect to the VPN server in WinRoute (see chapter 15.1 Viewing and definitions of user accounts 15.1 Viewing and definitions of user accounts).

- Connection to the VPN server from the Internet as well as communication between VPN clients must be allowed by traffic rules.

Note: Remote VPN clients connecting toWinRoute are included toward the number of persons using the license (see chapters 4 Product Registration and Licensing and 4.6 User counter). Be aware of this fact when deciding on what license type should be purchased (or whether an add-on for upgrade to a higher number of users for the license should be bought).

### Basic configuration of traffic rules for VPN clients

Figure 23.6. Common traffic rules for VPN clients

- The first rule allows connection to the VPN server in WinRoute from the Internet.

  To restrict the number of IP addresses from which connection to the VPN server will be allowed, edit the Source entry.

  By default, the Kerio VPN service is defined for TCP and UDP protocols, port `4090`. If the VPN server is running at another port, this service must be redefined.

- The second rule allows communication between the firewall, local network and VPN clients.

If the rules are set like this, all VPN clients can access local networks and vice versa (all local hosts can communicate with all VPN clients). To restrict the type of network access available to VPN clients, special rules must be defined. A few alternatives of the restrictions settings within Kerio VPN are focused in chapter 23.5 Example of Kerio VPN configuration: company with a filial office.

Note:

1. If the Network Rules Wizard is used to create traffic rules, the described rules can be generated automatically (including matching of VPN clients with the Source and Destination items). To generate the rules automatically, select Yes, I want to use Kerio VPN in Step 5. For details, see chapter 7.1 Network Rules Wizard.

2. For access to the Internet, VPN clients use their current Internet connections. VPN clients are not allowed to connect to the Internet via WinRoute (configuration of default gateway of clients cannot be defined).

3. For detailed information about traffic rules, refer to chapter 7 Traffic Policy.

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23.1 VPN Server Configuration | Contents | 23.3 Interconnection of two private networks via the Internet (VPN tunnel)