DSL-2540T ADSL Router User Guide
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A DoS "denial-of-service" attack is characterized by an explicit attempt by attackers to prevent legitimate users of a
service from using that service. Examples include: attempts to "flood" a network, thereby preventing legitimate network
traffic, attempts to disrupt connections between two machines, thereby preventing access to a service, attempts to
prevent a particular individual from accessing a service, or, attempts to disrupt service to a specific system or person.
Port scan protection is designed to block attempts to discover vulnerable ports or services that might be exploited in an
attack from the WAN.
The Service Filtering options allow you to block FTP, Telnet response, Pings, etc, from the external network. Check the
category you want to block to enable filtering of that type of packet.
When you have selected the desired Firewall policies, click the
Apply
button to enforce the policies. Remember to save
any configuration changes.
Summary of Contents for DSL-2540T
Page 1: ...DSL 2540T ADSLRouter UserGuide July 2006 ESL2540TEUA1G ...
Page 26: ...DSL 2540T ADSL Router User Guide 19 WAN Settings window PPPoE PPPoA ...
Page 35: ...DSL 2540T ADSL Router User Guide 28 WAN Settings window Dynamic IP Address ...
Page 40: ...DSL 2540T ADSL Router User Guide 33 WAN Settings window Static IP ...
Page 79: ...DSL 2540T ADSL Router User Guide 72 QoS Configuration window ...
Page 86: ...DSL 2540T ADSL Router User Guide 79 Admin Administrator Settings window ...
Page 97: ...DSL 2540T ADSL Router User Guide 90 DHCP Clients DHCP Clients window ...
