JavaFX 8 – Mandelbrot tutorial

Being a Java luddite who still defaults to Swing I thought it was time to learn something new. Here's a set of tutorials combing JavaFX with the GUI favourite the Mandelbrot fractal. I won't dwell on the function f(z)=z2 +C other than to say the JDK doesn't support Complex numbers, so the initial method looks... Continue Reading →

APIC-EM – licenseHarvest

During a recent Nexus 5k upgrade task Layer3 features were preventing non-disruptive ISSU’s from taking place. It became apparent that some N5Ks had unused features/ applications installed and the licenses deployed across the estate were unknown. So I wrote a Python APIC-EM script to audit and download this information. The script has the following flow/... Continue Reading →

EIGRP IPv6 map-leak

Demonstration of the EIGRP leak-map feature in an IPv6 topology. The leak-map feature allows for a prefix to be advertise which forms part of a larger summary prefix.

Raspberry Pi NAT64/DNS64 router

I am currently experimenting running an IPv6 only WLAN at work, so thought I'd try experimenting at home. Whereas at work we have a CSR1000v to perform the NAT64 and a separate Linux VM for DNS64, the config below details combining both functions on a Raspberry Pi (RPi). The topology looks like this: apt-get install... Continue Reading →

IOS SSL VPN – tunnel mode

This configuration details how to setup an SSL VPN in 'tunnel mode' on a router running v15 IOS. Such a configuration could be run implemented on a small to mid-size remote site utilising an ISR router. Firstly install the AnyConnect package onto the router: ! webvpn install svc flash:/anyconnect-linux-64-4.2.01035-k9.pkg sequence 1 ! Confirm the package... Continue Reading →

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