D-Link DFL-CPG310 Product Manual - Page 221
Further Details, DNS, IPSEC IKE and VPN traffic.
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Setting the Firewall Security Level Table 31: Firewall Security Levels This level... Does this... Further Details Low Enforces basic control on All inbound traffic is blocked to the external incoming connections, NetDefend firewall IP address, except for ICMP while permitting all echoes ("pings"). outgoing connections. All outbound connections are allowed. Medium Enforces strict control on all incoming connections, while permitting safe outgoing connections. This is the default level and is recommended for most cases. Leave it unchanged unless you have a specific need for a higher or lower security level. All inbound traffic is blocked. All outbound traffic is allowed to the Internet except for Windows file sharing (NBT ports 137, 138, 139 and 445). High Enforces strict control on all incoming and outgoing connections. All inbound traffic is blocked. Restricts all outbound traffic except for the following: Web traffic (HTTP, HTTPS), email (IMAP, POP3, SMTP), ftp, newsgroups, Telnet, DNS, IPSEC IKE and VPN traffic. Note: If the security policy is remotely managed, this lever might be disabled. Chapter 9: Setting Your Security Policy 205
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