Cirrus
CirrusA simple way to get around this is have the people log into the shared floating IP shared between the F5s. This will log the user into the active box which ever it is.
ie
box-a - 10.10.10.2 - active
box-b - 10.10.10.3 - standby
floating ip - 10.10.10.4
when logging into 10.10.10.4 you will receive the UI for box-a. But if there was a fail over then you would receive the UI for box-b
MVPthis seems like the easiest way to get this working,
a warning though, you are enabling management access on a self IP, so be sure to do this a network which is not reachable from untrusted network (like the internet).