Nlm11.18.0.0-ipv4-ipv6-win64.msi

nlm11.18.0.0-ipv4-ipv6-win64.msi

This file name follows the naming convention used by Network License Manager (NLM) utilities, specifically those distributed by Autodesk (and similar CAD/engineering software vendors) for managing floating network licenses.

Here is a breakdown of what this file is and its key characteristics. nlm11.18.0.0-ipv4-ipv6-win64.msi

3. Typical Software Environments

You would encounter this file if you are installing or updating a license server for one of the following software families (which rely on FlexNet Publisher or similar NLM technology):

• CAD/CAE software – SolidWorks, CATIA, ANSYS, Siemens NX
• Creative & media tools – Autodesk (AutoCAD, Maya, 3ds Max)
• Security software – ESET Endpoint products (ESET’s NLM is often named nlm_eset_*.msi)
• Engineering simulation – COMSOL, Altair HyperWorks

Note: While the base name “nlm” is generic, always verify the digital signature of the MSI file to confirm it comes from a trusted vendor (e.g., Flexera, Autodesk, or ESET). CAD/CAE software – SolidWorks, CATIA, ANSYS, Siemens NX

Port conflict (Error: "Cannot open port 1055")

• Fix: Run netstat -an to identify the process using port 1055, stop that service, or reconfigure the license manager to use alternative ports in the license file (e.g., SERVER hostname ANY 2080).

Potential risks:

• Open ports – Exposes licensing ports (e.g., 2080) to network; restrict via Windows Firewall to only authorized subnets.
• Vulnerabilities – Older versions (pre-11.16) had known vulnerabilities like CVE-2020-12695 (CallStranger). Version 11.18.0.0 is presumed patched but always monitor vendor advisories.
• Licensing compliance – Improper configuration may lead to overuse or underuse, affecting legal standing.

6. Common Errors and Troubleshooting

| Error | Likely cause | Solution | |-------|--------------|----------| | License server system does not support this feature. (-18,147) | IPv6 mismatch – client only IPv4 but license bound to IPv6 hostname. | Use hostname, not IP, in LICENSE_FILE variable or add USE_SERVER option. | | No such feature exists (-5,414) | Feature name missing or wrong version in .lic file. | Verify feature codes against vendor documentation. | | Cannot connect to license server (-15,570) | Firewall blocking port 2080. | Add inbound rule for lmgrd.exe and adskflex.exe. | | Service fails to start | Corrupted install or missing VC++ redistributable. | Reinstall MSI, ensure Visual C++ 2015-2022 x64 is present. |

Post-Installation Steps

1. Firewall rules – Open inbound ports (typically 27000-27009 TCP for lmgrd, plus a vendor-specific port).
2. License file – Place the vendor-provided .lic or .dat file in the installation directory.
3. Service startup – Ensure the “FlexNet Licensing Service” (or similarly named service) is set to Automatic and running.
4. IPv6 binding – Check that the server listens on IPv6 by running netstat -an | findstr "27000" and looking for [::] entries.

2. Origin: Who Produces nlm11.18.0.0-ipv4-ipv6-win64.msi?

This file is typically associated with Flexera Software’s FlexNet Publisher (formerly FlexLM), a cross-platform licensing solution, or rebranded versions from software vendors like: Note: While the base name “nlm” is generic,

• Autodesk (for AutoCAD, Maya, Revit)
• ANSYS (engineering simulation)
• PTC (Creo, Windchill)
• Siemens (NX, Tecnomatix)

The nlm prefix is commonly used by Autodesk Network License Manager. In fact, Autodesk distributes this exact naming pattern for their license manager tools. Therefore, encountering nlm11.18.0.0 strongly suggests you are dealing with an Autodesk product’s license server component or another FlexNet-based system.

File Identity & Version

• Full Name: Network License Manager
• Version: 11.18.0.0
• Protocol Support: IPv4 and IPv6
• Platform: 64-bit Windows (Win64)
• Package Type: Windows Installer (.msi)