Configuring the OfficeMode Network

By default, VPN Clients connect to the VPN Server using an Internet IP address locally assigned by an ISP. This may lead to the following problems:

• VPN Clients on the same network will be unable to communicate with each other via the UTM-1 Internal VPN Server. This is because their IP addresses are on the same subnet, and they therefore attempt to communicate directly over the local network, instead of through the secure VPN link.
• Some networking protocols or resources may require the client's IP address to be an internal one.

OfficeMode solves these problems by enabling the UTM-1 DHCP Server to automatically assign a unique local IP address to the VPN client, when the client connects and authenticates. The IP addresses are allocated from a pool called the OfficeMode network.

To configure the OfficeMode network

1. Click Network in the main menu, and click the My Network tab.

   The My Network page appears.

2. In the OfficeMode network's row, click Edit.

   The Edit Network Settings page appears.

3. In the Mode drop-down list, select Enabled.

   The fields are enabled.

4. In the IP Address field, type the IP address to use as the OfficeMode network's default gateway.

   Note: The OfficeMode network must not overlap other networks.

5. In the Subnet Mask text box, type the OfficeMode internal network range.
6. If desired, enable or disable Hide NAT.

   See Enabling/Disabling Hide NAT.

7. If desired, configure DHCP options.

   See Configuring DHCP Server Options.

8. Click Apply.

   A warning message appears.

9. Click OK.

   A success message appears.