H3C Technologies H3C SecBlade LB Cards - Manual (Page 247)

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Figure 130 Adding an IP address entry for protection
4. Configure the SYN flood detection feature, specifying to automatically add protected IP address
entries:
a. From the navigation tree, select Security > Intrusion Detection > SYN Flood.
b. In the Attack Prevention Policy area, select Trust from the Security Zone list.
c. Select the Add protected IP entry to TCP Proxy box in the Attack Prevention Policy area.
d. Click Apply.
Figure 131 Configuring the action to be taken upon detecting a SYN flood
e. In the SYN Flood Configuration area, click Add.
f. Select Global Configuration of Security Zone.
g. Click Apply.