Planet Networking & Communication CS-2001 User Manual page 491

13.1.3 Deploying CS-2001 in between Gateway and Mail
Server and Filtering Spam with Global Rule (Mail Server Is
Deployed in DMZ under Transparent Mode)
Prerequisite Setup
Gateway: 172.16.x.x/16
Configure Port1 as LAN1.
Configure Port2 as WAN1 (172.16.1.12) and connect it to the gateway.
Configure Port3 as WAN2.
Configure Port4 as DMZ1(Transparet Routing mode) and connect it to the mail server
(LAN IP: 172.16.1.13, WAN IP: 61.11.11.11)
Step 1. Setup a mail server in DMZ, name it as "supportplanet.com.tw", configure
its IP address as 172.16.1.13, and then use an external DNS server to
resolve domain names.
Step 2. Under Policy Object > Address > DMZ, set as below:
Step 3. Under Policy Object > Service > Group, set as below:
Figure 13-30 Address Setting for Mail Server
490
（Figure 13-30）
（Figure 13-31）