Saturday, 20 March 2021

Video Series: Configure VLANs, InterVLAN Routing, and VoIP with Cisco CME

This blog post is a result of the incredible number of views I've noticed on this article, Cisco VOIP Phone Setup in Packet Tracer, I shared some years back. I have had numerous requests to share the file and have done so but that is only just an initial basic setup. 

I have since done some updates to this tutorial and have created a series of video tutorials which I share on my Youtube page. 

To ensure best network design and implementation practice is followed, I decided to throw in VLANs and InterVLAN routing into the mix. This is to ensure that Voice traffic is put into its own VLAN. You can later add QoS (MLS, CoS) if you want to which is necessary if you're doing this in an actual physical implementation. The main idea behind this series of videos is to help you begin off with a blank Packet Tracer network, setup the network, configure basic settings, configure VLANs, and then interVLAN routing, and finally end with VoIP functionality added to the network. 

You can now easily follow through this series of video tutorials to learn how to configure VLANs, InterVLAN routing and VoIP. I decided not to narrate the videos. If you want to learn about the concepts please visit the Cisco Learn site or take networking classes offered on Coursera, Teachable, or the many other sites that do this. My main objective is how to do it, not the why you do it this way, many courses out there will help you learn the theory.

How to make the most of this tutorial?

Open a blank packet tracer file, begin with Part A and follow along. You can pause and play the video as you setup and configure the network.

Part A: Setup network


Part B: Configure basic settings for devices / Part C: Configure VLANs


Part D: Configure InterVLAN routing


Part E: Configure VoIP


 

Thursday, 18 March 2021

Mobile internet prices in Papua New Guinea: still no downward movement

 

Mobile internet prices in Papua New Guinea: still no downward movement

This blog post updates ongoing monitoring of mobile internet prices in Papua New Guinea (PNG) by presenting data for the second half of 2020. For background, see an earlier post at the start of 2020 that suggested an overall decrease in prices from mid-2016 to late 2019, and a post in mid-2020 that showed no change in the first half of 2020. 

Since the start of 2020, price offerings have been noted each Monday using menus in mobile telephones. This method captures pricing changes within one week of them being made available to consumers. The main motivation for this research has been to monitor whether there is any noticeable change since the Coral Sea Cable System was officially launched in December 2019

Read the original blog post in Devpolicy Blog.

Saturday, 6 March 2021

Do you know about the PNG Cybercrime Act 2016

I have been seeing a number of issues lately on Facebook that fall in the category of cybercrime. What's interesting though is that many people either do not know that there exists a PNG Cybercrime Code Act 2016, or they simply don't know what specific offense it comes under and the severity of the penalty. Furthermore, there is even a National Cybersecurity Committee that started during the 2018 APEC through an MOU between Australia and the PNG government. It continued even after the APEC to provide wider cyber security coverage across a range of GoPNG agencies. Organizations within this committee include NICTA, DCIT and OSCA.

Cyber Crime by Nick Youngson CC BY-SA 3.0 Alpha Stock Images

It would help ordinary PNGeans to at least know the different forms of cybercrime divisions and specific offenses captured in this Act. Having that knowledge informs our general populace to be able to take action when they see or hear about cybercrime.

I created an infographic summarizing the offenses listed in the Act and what divisions they come under. Details of these offenses and their related penalties can be found in the Act (pdf) itself. You could even visit the PNG Law Review site to know more about the Act.

PNG Cybercrime Offenses Infographic (click here to view a larger version)