PLANET BM-525 - Manual (Page 152)

BM-525 Bandwidth Management Gateway User’s Manual
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6.1 Settings
Sasser Block
„ Can block the external Sasser virus attack.
MSBlaster Block
„ Can block the external MSBlaster virus attack.
Code Red Block
„ Can block the external Code Red virus attack.
Nimda Block
„ Can block the external Nimda virus attack.
Detect SYN Attack
„ Can detect the disconnection situation as the hacker keeps sending the TCP SYN data packets
to paralyze the server connection.
‹ SYN Flood Threshold (Total) Define all the IP and the total SYN packets Pkts/Sec
pass through the BM-525. If over the setting value, then BM-525 will define it to be
attacked.
‹ SYN Flood Threshold ( Per Source IP ) Define every source IP and the total SYN
packets Pkts/Sec pass through the BM-525. If over the setting value, then BM-525 will
define it to be attacked.
‹ SYN Flood Threshold Blocking Time (Per Source IP ) The BM-525 will block the
packets from the attack source IP according to the time setting. After the blocking time,
the BM-525 will re calculate the total SYN flow from every source IP, if over the setting
value, then BM-525 will keep blocking.