ZyXEL LTE7485-S905 User Guide - Page 121
Telnet, Ftp, Http, Dns, Imap, Pop3, Smtp, Label, Description
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Chapter 11 Firewall Figure 92 Security > Firewall > General Note: LAN to WAN is your access to all Internet services. WAN to LAN is the access of other computers on the Internet to devices behind the Zyxel Device. When the security level is set to High, Telnet, FTP, HTTP, HTTPS, DNS, IMAP, POP3, SMTP, and/or IPv6 ICMPv6 (Ping) traffic from the LAN are still allowed. The following table describes the labels in this screen. Table 42 Security > Firewall > General LABEL DESCRIPTION IPv4 Firewall Enable firewall protection when using IPv4 (Internet Protocol version 4). IPv6 Firewall Enable firewall protection when using IPv6 (Internet Protocol version 6). High This setting blocks all traffic to and from the Internet. Only local network traffic and LAN to WAN service (Telnet, FTP, HTTP, HTTPS, DNS, POP3, SMTP) is permitted. Medium This is the recommended setting. It allows traffic to the Internet but blocks anyone from the Internet from accessing any services on your local network. Low This setting allows traffic to the Internet and also allows someone from the Internet to access services on your local network. This would be used with Port Forwarding, Default Server. Apply Click this to save your changes. Cancel Click this to restore your previously saved settings. LTE Series User's Guide 121