Table of Contents
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Chapter 1
Introducing the Sensor
Here is a summary of ways to set the time on sensors:
For appliances
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For the IDSM2
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For the AIM IPS and the NME IPS
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For the AIP SSM
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OL-18504-01
Use the clock set command to set the time. This is the default.
Use NTP—You can configure the appliance to get its time from an NTP time synchronization
source.
The IDSM2 can automatically synchronize its clock with the switch time. This is the default.
The UTC time is synchronized between the switch and the IDSM2. The time zone and
summertime settings are not synchronized between the switch and the IDSM2.
Be sure to set the time zone and summertime settings on both the switch and the IDSM2
Note
to ensure that the UTC time settings are correct. The local time of the IDSM2 could be
incorrect if the time zone and/or summertime settings do not match between the IDSM2
and the switch.
Use NTP—You can configure the IDSM2 to get its time from an NTP time synchronization
source.
The AIM IPS and the NME IPS can automatically synchronize their clock with the clock in the
router chassis in which they are installed (parent router). This is the default. The UTC time is
synchronized between the parent router and the AIM IPS and the NME IPS. The time zone and
summertime settings are not synchronized between the parent router and the AIM IPS and the
NME IPS.
Note
Be sure to set the time zone and summertime settings on both the parent router and the
AIM IPS and the NME IPS to ensure that the UTC time settings are correct. The local
time of the AIM IPS and the NME IPS could be incorrect if the time zone and/or
summertime settings do not match between the AIM IPS and the NME IPS and the
router.
Use NTP—You can configure the AIM IPS and the NME IPS to get their time from an NTP time
synchronization source, such as a Cisco router, other than the parent router.
The AIP SSM can automatically synchronize its clock with the clock in the adaptive security
appliance in which it is installed. This is the default. The UTC time is synchronized between
the adaptive security appliance and the AIP SSM. The time zone and summertime settings are
not synchronized between the adaptive security appliance and the AIP SSM.
Be sure to set the time zone and summertime settings on both the adaptive security
Note
appliance and the AIP SSM to ensure that the UTC time settings are correct. The local
time of the AIP SSM could be incorrect if the time zone and/or summertime settings do
not match between the AIP SSM and the adaptive security appliance.
Use NTP—You can configure the AIP SSM to get its time from an NTP time synchronization
source, such as a Cisco router other than the parent router.
Cisco Intrusion Prevention System Appliance and Module Installation Guide for IPS 7.0
Time Sources and the Sensor
1-27
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- How the Sensor Functions
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Table of Contents
Troubleshooting
