Cisco Cisco Firepower Management Center 4000

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31-8
FireSIGHT System User Guide
 
Chapter 31      Configuring External Alerting for Intrusion Rules 
  Understanding Email Alerting
Summary Output
Enables or disables brief email alerting, which is suitable for text-limited devices such as pagers. 
Brief email alerts contain:
  –
event timestamp 
  –
for Defense Centers, the IP address for the device that generated the event
  –
event protocol
  –
source IP and port
  –
destination IP and port
  –
event message 
  –
the number of intrusion events generated against the same source IP
For example:
2011-05-18 10:35:10 10.1.1.100 icmp 10.10.10.1:8 -> 10.2.1.3:0
 
snort_decoder: Unknown Datagram decoding problem! (116:108)
Email Alerting on Specific Rules Configuration
Specifies the rules or rule groups whose events you want mailed to the specified email address or 
addresses.
For information about configuring email alerting, see 
.
Configuring Email Alerting
License: 
Protection
You can configure email alerting so that your appliance notifies you whenever an intrusion event occurs 
for an specific rule or rule group. 
Before you can receive email alerts, you must:
  •
configure your mail host to receive email alerts (see 
)
  •
make sure that both the managed device and the Defense Center can reverse resolve their own IP 
addresses
To configure email alerting options:
Access: 
Admin/Intrusion Admin
Step 1
Select 
Policies > Intrusion > Email
.
The Email Alerting page appears.
Step 2
Next to 
State
, select 
on
 to enable email alerting.
Step 3
In the 
From Address
 field, type the address you want to display in the From field in the email alerts.
Step 4
In the 
To Address
 field, type the address where you want to receive the email alerts.
Step 5
In the 
Max Alerts 
field, type the maximum number of events you want included in a single email.
Step 6
In the 
Min Frequency 
field, type the number of seconds for the minimum frequency with which you want 
to receive email alerts.
Step 7
To group events by IP address, next to 
Coalesce Alerts
, select 
on
.