ZyXEL Communications 5 Series - Technical Reference; Figure 158 My Service Firewall Rule Example: Rule Summary

Chapter 13 Firewall Screens
ZyWALL 5/35/70 Series User’s Guide
271
Rule 1 allows a My Service connection from the WAN to IP addresses 10.0.0.10 through
10.0.0.15 on the LAN.
Figure 158 My Service Firewall Rule Example: Rule Summary
13.9 Technical Reference
This technical reference contains the following sections:
• Packet Direction Examples
• Asymmetrical Routes
• DoS Thresholds
• Security Considerations
Packet Direction Examples
Firewall rules are grouped based on the direction of travel of packets to which they apply. This
section gives some examples of why you might configure firewall rules for specific
connection directions.
By default, the ZyWALL allows packets traveling in the following directions.:
• LAN to LAN These rules specify which computers on the LAN can manage the
ZyWALL (remote management) and communicate between networks or
subnets connected to the LAN interface (IP alias).
Note: You can also configure the remote management settings to
allow only a specific computer to manage the ZyWALL.
• LAN to WAN
1
These rules specify which computers on the LAN can access which
computers or services connected to WAN 1. See Section 13.2 on page
252 for an example.