vASA Add VMXNET3 Network Cards
vASA Add VMXNET3 KB ID 0001929 Problem I got a call out of the blue from a colleague this week asking, “We have a client, and we need to change the E1000 virtual network cards in their virtual Cisco ASA with VMXNET3 ones, do you think that will cause any problems?” I suppose the sensible answer was ‘Why?” It turns out this was one in a long line of small changes that were being proposed to solve a performance...
%Error copying system:/running-config
%Error copying system KB ID 0000987 Problem I love GNS3, it is a brilliant piece of software, I use it for bench testing and proof of concept work. Yes is can be a bit clunky sometimes, but it’s FREE! I had a project open with about four ASA’s on it, and it would not save the config on just one of them. HostName(config)# copy running-config startup-config Source filename [running-config]? Cryptochecksum: fdf42190 76959bba...
Event ID 27 – “The description for Event ID 27 from source e1iexpress cannot be found”
KB ID 0001130 Problem I was seeing intermittent network drops on my Server 2012 R2 servers, so when I took a lot in the logs this was what I found; Log Name: System Source: e1iexpress Date: {time} Event ID: 27 Task Category: None Level: Warning Keywords: Classic User: N/A Computer: {host-name} Description: The description for Event ID 27 from source e1iexpress cannot be found....
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...