Finding Your Host Name and Physical Address
To request a network license file for your Autodesk software you will need to find the Host Name and Physical address of the server(s) that will be running the Network License Manager (NLM). This information, along with your product serial number, is sent to Autodesk and is used to generate a network license file that enables you to run the NLM.
About Your Host Name and Physical Address
Here are a few notes that will help with identifying the correct information and submitting it when you request a network license file:
- Ethernet Adapter: If your server has more than
one Ethernet adapter, select one that corresponds to a physical
network adapter. Do not use the physical address for any wireless
or Bluetooth devices, as these are not valid and your network
license will not work.
If there is more than one physical Ethernet connection on a Windows system, it does not matter which one you use. If you are using a Mac OS X computer with more than one physical network adapter, you must use the address of the primary network adapter.
- Host Name: The unique identifier that serves as name of
your computer or server can be as long as 255 characters and
consists of numbers and letters.
- Physical Address: Refers to the physical address of the
Ethernet connection to your computer or server. This may also be
referred to as your MAC (Media Access Control)
Address, Host ID or Server
ID. It is twelve characters long and is a combination of
numbers (0–9) and letters (A–F, a–f). Your physical address is
often presented in this format: XX-XX-XX-XX-XX-XX.
- Name and Address Syntax: When requesting a
network license file, make sure you have accurately identified
characters that may look similar, such as:
- The number zero (0) and the letter O.
- The number one (1) and uppercase and lowercase "L" and uppercase "I" (depending on font).
Find Using the Command Prompt (Windows only)
To find your Host Name and Physical Address using the Windows Command Prompt:
- Open the Command Prompt window by clicking on Start
> (All) Programs > Accessories > Command
Prompt.
Note: If you do not have access to the Command Prompt, please contact your IT department or someone with administrative rights to your machine to help you locate the information.
- Type
ipconfig /alland press the Enter key.
Your Host Name will appear at the top, under the section Windows IP Configuration:

Your Physical Address will appear under the section Ethernet adapter Local Area Connection:

Find Using LMTOOLS (Windows only)
If you already have the Autodesk Network License
Manager installed on a Windows system, you can use the LMTOOLS
Utility to locate your server information.
To find your Host Name and Physical Address using the
LMTOOLS utility:
- Open the LMTOOLS utility by clicking Start
> All Programs > Autodesk > Network License
Manager > LMTOOLS Utility.
- Click on the Systems Settings tab.

In the left column titled Hostid Settings you will find your Host Name located in the Computer/Hostname box and your Physical Address located in the Ethernet Address box.
Find Using a Terminal Window (Linux or Mac)
If you already have the Autodesk Network License
Manager installed on a Mac or Linux system, you can use the lmutil
utility to locate your server information.
To find your Host Name and Physical Address using a Mac or
Linux Terminal Window:
- Launch a Terminal window.
- Type in the commands to navigate to the directory where
lmutil is installed. Here's an example:
cd /usr/local/flexnetserver/
- Type the command below to display your Host Name:
./lmutil lmhostid -hostname
You will see a message similar to the one below:
lmutil - Copyright (c) 1989-2013 Flexera Software LLC. All Rights Reserved.
The FlexNet host ID of this machine is "HOSTNAME=Nostromo"
- Type the command below to display your Physical Address
(Host ID):
./lmutil lmhostid
You will see a message similar to the one below:
lmutil - Copyright (c) 1989-2013 Flexera Software LLC. All Rights Reserved.
The FlexNet host ID of this machine is "6003089af239"
