In part 2 of our series we explored whether or not the ASDM image was linked in the firewall’s configuration. And if not, how to create that link. We also checked whether the image even existed on flash with the SHOW DISK0: command. Part 3 explores the possibility that the image file is missing and what is required to remedy this situation. [Read more…] about Why can’t I access my Cisco firewall through a web browser? (Part III)
I ran into this issue recently while trying to make a Remote Access VPN work on a Cisco ASA 5505 firewall. The VPN had been working at one point but was rarely used. When the end user tried to use it again they kept getting the following error.
Now this error could occur for many reasons. Including a firewall on the client side that is blocking the necessary UDP or TCP ports, or, an unstable internet connection, such as a mobile connection. But in my particular case it was actually a configuration issue on the firewall itself. [Read more…] about Cisco VPN – Reason 412: The remote peer is no longer responding.