D-Link DES-3028 Product Manual - Page 243

DES-3028 DES-3028P DES-3028G DES-3052 DES-3052P Layer 2 Fast Ethernet Managed Switch TCP SYNFIN - A TCP SYNFIN works by using SYN and FIN bits set into the TCP packets. These packets will leave the victim unable to get normal SYN packets and a large amount of these packets will result in the victim being blocked in CLOSE WAIT. TCP SYN SrcPort less 1024 - A TCP SYN SrcPort less 1024 works by sending a SYN packet with a source port less than 1024. The internet default services then uses the L4 port between 1 and 1023. All - Check this box to select all attack types. Action Set Action to Drop or Mirror the selected types of attacks. State Set the State to Enabled or Disabled. Click Apply to implement the changes made, click the corresponding Clear to clear a particular attack type or Clear All to clear all of the attack types. To view a summary of any of the types of DoS, click on the hyperlinked name in the DoS Attack Prevention List, which will reveal a detailed summary for that DoS type. Figure 10- 54. DoS Land Attack Prevention window - Summary window Figure 10- 55. DoS Blat Attack Prevention window - Summary window 229