Logon Logoff Event: 4981

Active Directory Auditing Tool

The Who, Where and When information is very important for an administrator to have complete knowledge of all activities that occur on his Active Directory. This helps him identify any desired / undesired activity happening. ADAudit Plus assists an administrator with this information in the form of reports. In real-time, ensure critical resources in the network like the Domain Controllers are audited, monitored and reported with the entire information on AD objects - Users, Groups, GPO, Computer, OU, DNS, AD Schema and Configuration changes with 200+ detailed event specific GUI reports and email alerts.

Account Management » Logon Logoff Event: 4981

Event ID 4981 – IPsec Main Mode and Extended Mode Security Associations were Established

Event ID 4981
Category Logon/Logoff
Sub-Category Audit IPsec Extended Mode
Description IPsec Main Mode and Extended Mode security associations were established.

Event 4981 is generated when both IPsec Main Mode and IPsec Extended Mode security associations are established.

Example of 4981 log:

IPsec Main Mode and Extended Mode security associations were established.

 

Local Endpoint:

Principal Name: %1

Network Address: %9

Keying Module Port: %10

 

Local Certificate:

SHA Thumbprint: %2

Issuing CA: %3

Root CA: %4

 

Remote Endpoint:

Principal Name: %5

Network Address: %11

Keying Module Port: %12

 

Remote Certificate:

SHA Thumbprint: %6

Issuing CA: %7

Root CA: %8

 

Cryptographic Information:

Cipher Algorithm: %13

Integrity Algorithm: %14

Diffie-Hellman Group: %15

 

Security Association Information:

Lifetime (minutes): %16

Quick Mode Limit: %17

Main Mode SA ID: %21

 

Additional Information:

Keying Module Name: AuthIP

Authentication Method: SSL

Role: %18

Impersonation State: %19

Main Mode Filter ID: %20

 

Extended Mode Information:

Local Principal Name: %22

Remote Principal Name: %23

Authentication Method: %24

Impersonation State: %25

Quick Mode Filter ID: %26

Why does event ID 4981 need to be monitored?

Security events which fall under the Audit IPsec Extended Mode subcategory are monitored primarily for IPsec Extended Mode troubleshooting.

Pro Tip:

With in-depth reports, real-time alerts, and graphical displays, ADAudit Plus tracks all IPsec security associations, helping you meet your security, operational, and compliance needs with absolute ease.

Event 4981 applies to the following operating systems:

  • Windows Server 2016
  • Windows 10

Explore Active Directory auditing and reporting with ADAudit Plus.

  • Enter your email id
    Please enter a valid email id
  • Enter your phone number
  • Select demo date
  •  
  • By clicking 'Schedule a personalized demo', you agree to processing of personal data according to the Privacy Policy. You can unsubscribe from our mails at anytime.
Account Management Auditing
Active Directory Auditing
Windows Server Auditing