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IDS RESPONSE BEHAVIOROnce IDS detects an anomalous network situation, it has a number of options. IDS responses to external stimulation can be classified as active or passive.
-Active response is a definitive action initiated when certain types of alerts triggered for example collecting additional information about the intrusion, taking action against intrusion.-Passive response options simply report for example setting off alarms, collecting passive data.
A list of response options for IDS is as follows-Audible/visual alarm-E-mail message-Page or phone message-Evidentiary packet dump-Terminate session-Take action against the intruder-Launch program-SNMP traps and plug-ins-Reconfigure firewall-Terminate connection
ENCAPSULATION Network interface layer adds IP datagram as data area in hardware frame. Hardware ignores IP datagram message format. Standards for encapsulation defines details
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