ZyXEL Communications ZYWALL10 No, Step, Edit, Apply, Single, Internet, Rule Summary, Figure 19-7Configuring A POP Custom Port

ZyWALL 10 Internet Security Gateway

Type a name for this custom port and select TCP service.

Click Single and enter a port number of 110.

Click Apply when you’ve finished.

Figure 19-7 Configuring A POP Custom Port

Step 4. Now, you will create rules to block all outgoing traffic (from the local network to the Internet) except for traffic originating from the HTTP proxy server and our mail server. Click Internet to see the Rule Summary screen. Now click an available No. (rule number) button, then click Edit to bring up the next screen.

19-8 Example Firewall Rules