Universal Management Suite 12.01 UMS Articles IGEL UMS Communication Ports Current: IGEL Management Interface (IMI) PDF Download PDF Download page IGEL Management Interface (IMI). Current page All pages IGEL Management Interface (IMI) The REST API provided by the IGEL Management Interface is served via HTTP on port 8443 (TCP).The following figure illustrates the communication with the UMS server via IMI: ×