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Content Security Gateway User's Manual
Update system clock every □ minutes You can set the interval time to synchronize with
Step 4.
o
utside servers. If you set it to 0, it means the device will not synchronize automatically.
Follow this step to sync to your co
mputer's clock.
Click on the Sync button.
Step 1.
Click OK to apply the setting or click Cancel to discard changes.
4.1.6 Mult
iple Subnet
NAT mode
Multiple Sub
net 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)
168.85.88.253 (WAN)
2. Service department sub-network: 192.168.2.11/24 (LAN)
168.85.88.252 (WAN
)
3. Sales department sub-network: 192.168.3.11/24 (LAN)
168.85.88.251 (WAN)
4. Procurement department sub-network: 192.168.4.11/24 (LAN)
168.85.88.250(WAN)
5. Accounting department sub-network: 192.168.5.11/24 (LAN)
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 add
ress to
connect to the internet. The settin
gs 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
T
he other departments are also set by groups, this is the function of Multiple Subnet.
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