Error "com․powerup․configmgr․deviceservice․TunnelException" when NCM Cut-Through Fails

Products

• VMware Smart Assurance
• Network Observability

Issue/Introduction

The NCM cut through was failing after the device server was updated.

Environment

Smarts - All supported versions

Cause

The cut-through process was failing due to the deprecation of the Blowfish algorithm and unified authentication, which prevented the username and password from correctly transmitting to the WebSwing interface. A debug patch was deployed to the Application Server (AS) and Device Server (DS), which resolved the issue. 

Resolution

A debug patch was deployed to the Application Server (AS) and Device Server (DS), which resolved the issue. 

Fix will be included in version 25.4.7.