The best way to access the virtual console is to configure the plugin type to "html5" in the settings instead of either native of Java.. In order to have html5 support, the idrac lifecycle control needs to be update to above 2.60.
A sample of configuration of the virtual console of idrac 7 and 8
OMSA
OMSA provies more information, such as the firmware version.
As both IDRAC and OMSA are on the 10.10.[0-3].X private network, so one can launch a web browser (google-chrome or firefox)from the umt3int02-05 to access them.
-- WenjingWu - 07 May 2019