ZyXEL SBG3300-NB00 User Guide - Page 253
The Firewall Screen, The Service Screen
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Chapter 15 Firewall 15.2 The Firewall Screen Use this screen to set the security level of the firewall on the Device. Firewall rules are grouped based on the direction of travel of packets to which they apply. Click Security > Firewall to display the General screen. Figure 97 Security > Firewall > General The following table describes the labels in this screen. Table 72 Security > Firewall > General LABEL DESCRIPTION Firewall Select Enable to activate the firewall feature on the Device. Easy Select Easy to allow LAN to WAN and WAN to LAN packet directions. Medium Select Medium to allow LAN to WAN but deny WAN to LAN packet directions. High Select High to deny LAN to WAN and WAN to LAN packet directions. Apply Click Apply to save your changes. Cancel Click Cancel to restore your previously saved settings. 15.3 The Service Screen You can configure customized services and port numbers in the Service screen. For a comprehensive list of port numbers and services, visit the IANA (Internet Assigned Number Authority) website. See Appendix F on page 425 for some examples. SBG3300-N Series User's Guide 253