ZyXEL Communications Broadband Security Gateway P-312 - Manual (Page 213)

P312 Broadband Security Gateway
Example Firewall Rules 19-11
Figure 19-10 Example 2 - Internet to Local Network Rule Summary
19.1.3 Example 3: DHCP Negotiation and Syslog Connection from the
Internet
The following are some Internet firewall rules examples to:
1. Allow DHCP negotiation between the ISP and the P312.
2. Allow a syslog connection from the Internet.
Step 1.
Follow the procedure shown next to first configure a custom port.
Click Apply to save your settings
back to the Prestige.
This is the IP of our FTP server
to which we want to forward
traffic from the Internet.
We want to block all other
WAN to LAN traffic.