Swift & Network programmability, a good combo? An introduction.

Swift is commonly known by iOS and MacOSX Software developers as Apple introduced the language in 2014 for MacOSX, iOS, and Linux application development.
In my role as software engineer, I’ve used different programming languages to build small tools, solutions or prototypes. For network programmability,​ I’ve used Java as my primary language. I have my reasons, which I might share later in another post.

PoC on Network API’s

A sample use case of what is possible when you bring two great technologies together

Assigning a single IPv6 address to devices

I have been running IPv6 and IPv4 concurrently. At Cisco Live San Diego 2019  I shared some of my experiences with Jeffry Handal (I met him initially at CiscoLive Barcelona 2019)  and somewhow we ended up talking about IPv6 and how by default you receive multiple IPv6 addresses. To me, that was one of my frustrations, so my network is setup in such a way that it only assigns a single IPv6 address. It appears that such a setup is not very common. So I would like to share with you how my IPv6 network is configured.

Cisco NL Strategic Innovation Tour 2019

Cisco NL organized an innovation tour in the bay area for a few Dutch Cisco Partners in Silicon Valley. This blog is a brief summary of my experiences

FTD access policy behaviour

In a previous blog I’ve written about the differences between Firepower Threat Defense and ASA software. And although the basic OS appears to be ASA with Snort set in between ASA ingress and egress, some basic concepts of the ASA (or actually the PIX) have dissappeared in FTD. And it will have an impact once you migrate from ASA (with or without firepower) to FTD devices.

Upgrading Firepower1010 to 6.5

Upgrading Firepower1010 to 6.5

The Cisco FirePower 1010 appliance (FP1010, successor to the ASA5506 which can run FTD 6.3 and higher) has finally become available. As I am relocating to a new home, it was time to replace my trusty 5506-X with the FP1010 and get a new fresh start with FTD. Since FTD 6.5 is just out, and it enables the switchports on the FP1010, it was time to upgrade the appliance. In this post I will share my method of upgrading the FP1010 to the latest version, 6.5. 

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Upgrading Firepower1010 to 6.5

Assigning a single IPv6 address to devices

I have been running IPv6 and IPv4 concurrently. At Cisco Live San Diego 2019  I shared some of my experiences with Jeffry Handal (I met him initially at CiscoLive Barcelona 2019)  and somewhow we ended up talking about IPv6 and how by default you receive multiple IPv6 addresses. To me, that was one of my frustrations, so my network is setup in such a way that it only assigns a single IPv6 address. It appears that such a setup is not very common. So I would like to share with you how my IPv6 network is configured.

read more
Upgrading Firepower1010 to 6.5

It’s been a while…

It's been a long time since I've put a blog post up on my site. It's not that I have not been busy, on the contrary. I have been working on my book (Transforming existing networks to Intent Based Networking), which is going to be published later this year, exciting,...

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