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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 otherwise known at attack 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.
Note
4.11 RIP CONFIGURATION
To enable RIP, click the RIP Status Enable radio button.
Service Filtering may interfere with other configurations such as
DHCP Relay.
Routing Information Protocol (RIP) Configuration window
Chapter 4 Other Configuration
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