Tag: cisco
IPv6 Access List Basics
Chances are that if you have worked with IPv4 on the IOS platform for any length of time you are familiar with the access list formats, both standard and extended. Assuming you know at least the basics of the addressing structure you should have no issue establishing similar ACLs for IPv6. Creating IPv6 ACLs The […]
Verifying Cisco IOS File Integrity
Moving files on Cisco devices is important to know how to do but knowing the files are free of errors is also important. If you have every upgraded a device and find that it won’t boot because the image file corrupted you certainly know what I’m talking about. While this happens very rarely it’s important […]
Cisco ASA IPSec Pre Shared Key Recovery
The Cisco ASA firewall is one of the most common firewalls I have encountered while both working in the corporate IT world as well as in the consulting industry with small to medium clients. Most administrators enjoy working with it as it has both a fairly intuitive interface in the form of the ASDM and a powerful CLI as well. One simple but common complaint, however, is that pre shared keys are difficult to recover from the units when working with IPsec tunnels. The solution is quite simple yet often elusive.
Cisco ASA Password Recovery
When inheriting used and abused customer networks it becomes necessary to reset passwords on devices the hard way from time to time. Fortunately with the Cisco ASA it’s still not all that complicated. You will see that with each step I included examples of the commands and the output along the way as well.