Use the following command if you want the installation to use a non-standard License Manager server setup silently:
start /wait msiexec /qn /i <license-manager-installer> NOSAFENET=<ip-addess>|NONET
where <license-manager-installer> is either lmsetupx64.msi or lmsetupx86.msi depending on your environment, <ip-addess> is the address of a remote server where the License Manager resides, or where NONET indicates that no server is required (for example, with a Docker image).