In order to pull product installation file directly into RHEL without the need for a GUI you can use the following steps to download your installation packages directly into RHEL.
This should work for any Broadcom software.
On another computer that has a web browser and internet access login to
Click on my downloads
In the search product name type in the name of the desired product, and click show results in this example we will use data loss prevention.
Click data loss prevention or what ever product you are trying to download.
Drill down to the applicable version.
Be sure to click and read the terms and conditions and once done select I agree, or the download will not be available to you until you do.
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Once you have found the desired package click the generate link under tokens
A new window will popup with the link to the desired download
Click the copy link button and the download link will be copied to your clipboard. *please note the token links are generally only good for 1 hour
You can then use wget in RHEL to download the desired installation package directly into the RHEL server without a GUI.
wget https://downloadsapi.broadcom.com/utils/########################/Symantec_DLP_26.1_Platform_Lin-IN.zip
If you have not yet installed wget in RHEL it can be installed very easily with:
sudo dnf install wget