GNS3 ASA Error – ‘ASDM did not recognize device model ASA5520’
KB ID 0001028 Problem Apart from the fact that’s an appalling spelling of recognise, I got bitten by this last weekend. I don’t use the ADSM as a rule so it would not normally be a problem, the only thing I do use the ASDM for is certificates, (it’s just easier). Solution Last time I saw an error like this I had to use a fiddler script to embed the firewall model in the https traffic, however now there’s a...
Cisco ASA 5500 – Install and Configure a CSC Module
KB ID 0000731 Problem The Cisco CSC module provides ‘in line’ scanning of POP3, SMTP, HTTP and FTP traffic, to protect against viruses but also for anti spam and anti phish (with the correct licensing). If you are familiar with Trend products, you will like it, (because that’s what it runs), and the interface is much the same as Trend IWSS. It is a hardware device that plugs into the back of the ASA, and comes in...
Cisco Firewalls Changing the Web Management Port
Cisco 5500 Changing the ASDM Port Unable to Port Forward HTTPS KB ID 0000268 Problem You want to change the port that the Cisco ASDM runs over, or you are attempting to port forward https/ssl and see the following error Error: ERROR: unable to reserve port 443 for static PAT ERROR: unable to download policy You are trying to port forward (Create a static PAT entry) on a Cisco ASA for port 443 / https. This port is in use by the ASDM....
Cisco ASA – Java RDP Error – Connection Exception Wrong modulus size! Expected64 +8got:264
KB ID 0000452 Problem Seen while attempting to connect to to a Windows machine via the RDP plug in on a Cisco ASA firewall. Error: properJavaRDP error Connection Exception Wrong modulus size! Expected64 +8got:264 Solution 1. I’ve seen some posts indicating that this can be caused by the version of Java that’s installed, however in my case that was NOT the problem. 2. Connect to the ASDM of the ASA firewall >...
Cisco ASA 5500 – Adding Licenses
KB ID 0000531 Problem Each model in the Cisco ASA 5500 range comes with a range of licences and features, to add these features you can purchase them from a Cisco reseller. You will then need to apply the licence to the device. Solution 1. Your first step is to purchase the Licence you require from an authorised cisco reseller. 2. When your licence arrives you need to locate the PAK that is on the certificate. 3. You need the Serial...