I have 2 ASA 5510 with image 8.21. When I have to switch from main ASA to BKP ASA, I boot my BKP ASA and then unplug the cables manually from main ASA and plug them into BKP ASA.But the problem is that I become unable to access the internet for a ver...

Need to upgrade my Cisco ASA-5510 image from asa821-k8.bin to asa903-k8.bin with the following License. Do I need to buy a new license with image upgrade ???? #sh version  Cisco Adaptive Security Appliance Software Version 8.2(1)Device Manager Versio...