Hi Andy,
in the "Sentinel" dongle family, Safenet/Gemalto developped several product.(Sentinel SuperPro, Sentinel UltraPro, Sentinel Keys, Sentinel HL).
Based on the information you provided, your protected software uses a "SafeNet UltraPro" dongle.
But the "Sentinel Protection Installer v7.4.0" for Solaris was only developed to support "Sentinel Keys" (diffrent product).
The "SafeNet UltraPro" License Manager is called "Sentinel Protection Server" and uses by default port UDP 6001.
The "Sentinel Protection Server" for UltraPro keys is only available for Windows, Linux and MacOSX.
We don't have a "Sentinel Protection Server" for UltraPro keys that supports Solaris.
Regards,
Olivier