ZyXEL Communications zywall 50 User Manual

 ZyWALL 50 Internet Security Gateway 

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Firewalls 

3.  To selectively block/allow inbound or outbound traffic between inside host/networks and outside 

host/networks. Remember that filters can not distinguish traffic originating from an inside host or an 
outside host by IP address. 

4.  The firewall performs better than filtering if you need to check many rules. 

5.  Use the firewall if you need routine e-mail reports about your system or need to be alerted when attacks 

occur. 

6.  The firewall can block specific URL traffic that might occur in the future. The URL can be saved in an 

Access Control List (ACL) database.