Content Security Gateway User’s Manual

Step 4. Update system clock every □ minutes You can set the interval time to synchronize with outside servers. If you set it to 0, it means the device will not synchronize automatically.

Follow this step to sync to your computer’s clock.

Step 1. Click on the Sync button.

Click OK to apply the setting or click Cancel to discard changes.

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4.1.6 Multiple Subnet

NAT mode

Multiple Subnet allows local port to set multiple subnet works and connect with the Internet through WAN IP Addresses.

For instance: The lease line of a company applies several real IP Addresses 168.85.88.0/24, and the company is divided into R&D department, service, sales department, procurement department, accounting department, the company can distinguish each department by different subnet works for the purpose of convenient management. The settings are as the following:

1.R&D department sub-network: 192.168.1.11/24 (LAN) ÅÆ 168.85.88.253 (WAN)

2.Service department sub-network: 192.168.2.11/24 (LAN) ÅÆ 168.85.88.252 (WAN)

3.Sales department sub-network: 192.168.3.11/24 (LAN) ÅÆ 168.85.88.251 (WAN)

4.Procurement department sub-network: 192.168.4.11/24 (LAN) ÅÆ 168.85.88.250(WAN)

5.Accounting department sub-network: 192.168.5.11/24 (LAN) ÅÆ 168.85.88.249 (WAN)

The first department (R&D department) was set while setting interface IP, the other four ones have to be added in Multiple Subnet, after completing the settings, each department use the different WAN IP address to connect to the internet. The settings of LAN computers on Service department are as the following:

Service IP Address: 192.168.2.1

Subnet Mask: 255.255.255.0

Default Gateway: 192.168.2.11

The other departments are also set by groups, this is the function of Multiple Subnet.

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