While trying to upgrade IPS sensor the upgarde fails with the error "cannot upgrade software on sensor, errTransport-Application processing the request respondend unexpectedly".
This error is seen when we try to upgrade the IPS sensor from version 5.x to 7.x directly. It is not possible to upgrade IPS sensor from version 5.x to 7.x. The sensor first needs to be upgraded to version 6.x and the to version 7.x for a smooth upgrade.
Perform the following steps to upgrade the sensor:
1)Download the appropriate file (for example, IPS-K9-6.2-1-E3.pkg) to an FTP, SCP, HTTP, or HTTPS server that is accessible from your sensor.
2)Log in to the CLI using an account with administrator privileges.
3)Enter configuration mode using the command configure terminal. (sensor# Configure terminal)
4)Upgrade the sensor using the commandupgradesource-url.(source-url is the location of the upgrade to retrieve.)
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