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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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