My Current IPS Sensors Platform 4255,IOS Ver 6.1(1)E1,and IME 6.1.
Kindly advice how to upgrade E2 and Report from IME6.1
Correction. The IPS-K9-6.1-1-E2.pkg package is for upgrading 6.0 or 5.1 sensors up to 6.1(1)E2.
If the sensor is already at 6.1(1)E1 then the following file is what needs to be installed to get to 6.1(1)E2:
The IPS-engine-... are used when only the E level is changing. The IPS-engine-... file is much smaller, and will change only the sensorApp binary rather than the entire operating system (which is what the IPS-K9-6.1-1-E2.pkg would do). This means than an InLine sensor configured with ByPass Auto is able to continue passing packets during the IPS-engine-... file installation, and there is not a sensor reboot. So the IPS-engine-... file installation can be done without bringing down the network (which can happen with installations requiring reboots).