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ZyWALL 100 Internet Security Gateway
13-12 Example Firewall Rules
13.1.3 Example 3: DHCP Negotiation and Syslog Connection from the
Internet
The following are some Internet firewall rule examples that allow DHCP negotiation between the ISP and the
ZyWALL and allow a syslog connection from the Internet. Follow the procedure shown next to first
configure a custom port.
Step 1. Click the Custom Ports link and then click Edit to display the following screen.
Figure 13-11 Custom Port for Syslog
Custom ports show up with an “*” before their names in the Services list box and
the Rule Summary list box. Click Apply after you’ve created your custom port.