PLANET CS-1000 - Manual (Page 27)

Multi-Homing Security Gateway User’s Manual
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3.1.6 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.
Multiple Subnet settings
Click System on the left side menu bar, select Configure then click Multiple Subnet to enter Multiple Subnet
window.
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