Intellinet-network-solutions 523615 Manual do Utilizador descarregar pdf (Página 51)

a hacking attempt starts, because the attacker first needs to know if a target is

available or not. With this option activated, the router won’t respond to any ping

commands sent from the Internet.

Blocking ICMP (ping) from LAN to Internet: With this option activated, the router

will not transport any outgoing ping command sent by a local station. It is for the

protection against shock-wave attacks.

Connection Filtering Setup Method: Enter the parameters of connection filter.

Click “Add” to apply the filter. If you want to delete a rule, then select the rule and

click “Del.”

Direction: Set up the orientation of the connection filter. There are two options:

“WAN” ➝ ”LAN” and “LAN” ➝ ”WAN.”

Source IP Address: IP address of the computer that sends the data.

Net Mask: Subnet mask of the computer that sends the data. For example, a

network mask of 255.255.255.0 would be 24.

Destination IP Address: IP address of the computer that receives the data.

Protocol: There are four options: Any, TCP, UDP and ICMP. Any refers to all

protocols.

Destination Port: Protocol port of destination computer (not available if protocol

option Any is chosen.

Accept/Drop: Set up “Connection Filtering” to accept or drop data package.

NOTES: Save the router configuration after completion; otherwise, the

configuration will be lost after the router is restarted. Also, the use of a static

lease IP for the client PC is recommended (Basic Setup ➝ LAN/DHCP).

4.10.2 DDNS

Click “Advanced” ➝ ”DDNS” as follows:

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Intellinet-network-solutions 523615 Manual do Utilizador Página 51