Will a backup router connected to the SimRush via the AUX use the SimRush Static IP address?
The Static IP address will associate itself with the first live connection to the internet and stick to it.
If the SimRush ODU is the first live connection then that will be what the IP associates to and sends all the traffic by.
If the AUX connection becomes live first, or if the SimRush ODU looses it’s connection, then the traffic will switch to the backup connection on AUX broadband.
This way the Static Public IP address always remains live and stable regardless of the WAN connection that is in use.