SMC Networks SMCBR21VPN - Manual (Page 203)

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Chapter 14 Attack Alarm
Attack Alarm
SMC BR21VPN has two alarm forms: Internal Alarm, and External Alarm.
Internal Alarm: When the SMC BR21VPN had detected the internal PC sending
large DDoS attacks and then the Internal Alarm will start on blocking these
packets to maintain the whole network.
External Alarm: When SMC BR21VPN detects attacks from hackers, it writes
attacking data in the External Alarm file and sends an e-mail alert to the
Administrator to take emergency steps.
How to use Attack Alarm
The Administrator can be notified the unusal affair in Intranet from Attack Alarms.
And the Administrator can backup the Internal Alarm, and External Alarm and
then delete the records to maintain the network status.