PLANET CS-2001 - Manual (Page 104)

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3.1.3 Using CS-2001 as a Gateway for Users on Two Subnets
to Access the Internet (NAT/Routing)
Prerequisite Setup (Note: IP Addresses used as examples only)
Configure Port1 as WAN1 (61.11.11.11) and connect it to the ADSL Termination Unit
Remote (ATUR) to access the Internet.
Configure Port2 as LAN1 (192.168.1.1, NAT/Routing) IP address
range:192.168.20.x/24. User’s PCs will connect to WAN1(61.11.11.11) to access the
Internet.
Configure Port3 as LAN2 (192.168.2.1, NAT/Routing) IP address
range:192.168.2.x/24. User’s PCs will connect to WAN1(61.11.11.11) to access the
Internet.
You may create the policy to establish the connection between LAN1 and LAN2.
Step 1. Go to Network > Interface and then set as below:
（Figure 3-10）
 Click Port2’s Modify button.
 Select LAN for Interface Type.
 Select NAT Routing for Connection Type.
 Enter the IPv4 Address and the Netmask.
 Tick Ping, HTTP and HTTPS.
 Click OK.