DSL-504G ADSL Router User’s Guide
Firewall
The Firewall Configuration menu allows the Router to enforce specific predefined policies intended to protect against certain common types of attacks. There are two general types of protection that can be enabled on the Router, as well as filtering for specific packet types sometimes used by hackers.
Figure 4- 5. Firewall Configuration Menu
Under Protection Policy you can choose to Enable or Disable protection against a basket of attack and scan types included as Attack Protection. When Attack Protection is enabled, it will create a firewall policy to protect your network against the following attack types and port scans:
Attacks | Port Scans |
|
Ping of Death Attack | Fragmentation Scan | Null Scan |
Tear Drop Attack | UDP Scan | RST Scan |
IP Spoofing Attack | ICMP Scan | SYNACK Scan |
Smurf Attack | TCP Session Scan | FIN Scan |
Land Attack | Xmas Scan | ACK Scan |
You can also choose to Enable or Disable protection against various
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The Service Filtering options allow you to block FTP, Telnet or response to Pings 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.
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