DSL Modem User Manual
Medium
If Medium is selected in the “Firewall Security Level” screen, the services listed at the bottom of the screen (HTTP, DNS, FTP, IMAPv3, SMTP, POP3, NNTP, IPSEC IKE, IPSEC ESP, HTTPS, and IMAP) are the only ones allowed to pass through the firewall. All other services will be blocked. These settings can be modified to customize the firewall settings.
When finished with this screen, click Apply to save the changes.
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