DES-3028 DES-3028P DES-3028G DES-3052 DES-3052P Layer 2 Fast Ethernet Managed Switch
TCP SYNFI
N – 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
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