ZyXEL VMG3925-B10B User Guide - Page 186
The Protocol Screen
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Chapter 16 Firewall Figure 106 Security > Firewall > General The following table describes the labels in this screen. Table 79 Security > Firewall > General LABEL DESCRIPTION Firewall Select Enable to activate the firewall feature on the VMG. 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. 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 D on page 288 for some examples. Click Security > Firewall > Protocol to display the following screen. Figure 107 Security > Firewall > Protocol VMG3925-B10B User's Guide 186