GNS3 ASA Error – ‘ASDM did not recognize device model ASA5520’
Nov17

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...

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GNS3 Cannot Connect Network Interfaces when running on VMware vSphere
Nov17

GNS3 Cannot Connect Network Interfaces when running on VMware vSphere

KB ID 0000671  Problem I have plenty of real ASA firewalls to play with, but it’s getting round to re-certification time, so for ease I thought I’d run up a Virtual ASA on my vSphere 5 box just for testing and breaking. However no matter what type of Virtual Network adaptor I used (vmxnet3, e1000, etc) I could not connect to the virtual firewall. Solution 1. Firstly make sure you actually have an IP address in the correct...

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