ZyXEL VSG1432-B101 User Guide - Page 217
The Firewall Screen, The Protocol Screen
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Chapter 16 Firewall 16.2 The Firewall Screen Use this screen to set the security level of the firewall on the ZyXEL Device. Firewall rules are grouped based on the direction of travel of packets to which they apply. Click Security Settings > Firewall to display the following screen. Figure 92 Security Settings > Firewall The following table describes the labels in this screen. Table 65 Security Settings > Firewall LABEL DESCRIPTION Low Select Low 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. 16.3 The Protocol Screen You can configure customized services and port numbers in the Protocol screen. For a comprehensive list of port numbers and services, visit the IANA (Internet Assigned Number Authority) website. See Appendix E on page 381 for some examples. VSG1432-B101 Series User's Guide 217