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[Archive] [ScreenOS] Backup SecurID (ACE) Server is Not Sending Node Secret. What is the reason for this?

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Article ID: KB6213 KB Last Updated: 26 Dec 2019Version: 4.0
Summary:

Backup SecurID (ACE) Server is not Sending Node Secret to ScreenOS device. Is this normal?

 

Symptoms:

ScreenOS 6.3.0 or newer 2 or more SecuerID (ACE) Servers Defined.

Only Primary ACE Server is sending a Node Secret.

 

Solution:

This is by design. Only the Primary will exchange the Node Secret. The Secondary ACE server receives it from the Primary. Following are some important points:-

  • We send ACE authentication packets to both primary and backup. If both primary and backup are up and connected, only primary responds.

  • Node secret is always sent by the ACE server to the NetScreen device during first time authentication. If both ACE servers are active, then the Primary Ace server is the one that responds with the Node secret   during first time authentication. If Primary is disconnected, the Backup will then send the Node Secret to the NetScreen device. 

  • If the Primary ACE server is active, it then conveys the node secret to Secondary.

 

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