Category Archives: Network

Creating SPAN port on Fortigate By: Brent Klespies

Here is a blog post from a friend and colleague Brent Klespies I had a customer wondering how to create…

By Manny Fernandez

May 8, 2019

Troubleshooting NAT on Fortigate Firewall

When you want to validate that the Fortigate is doing NAT properly, there are a few things you can do.…

By Manny Fernandez

May 3, 2019

Fortigate / Scrutinizer NetFlow Deployment

Today I had a customer talking to me about Netflow and the Fortigate.  To demonstrate the functionality, I decided to…

By Manny Fernandez

May 2, 2019

Perimeter Switch Configuration with Fortiswitch (Non-Fortilink)

One of the designs I normally do for customers when they purchase Highly Available firewalls is HA perimeter switches.  When…

By Manny Fernandez

May 1, 2019

Basic Deployment of FortiNAC – Part 1

FortiNAC, formally Bradford Networks was acquired by Fortinet in June of 2018.  Although Bradford was a great solution, joining the…

By Manny Fernandez

April 25, 2019

iperf for Network Geeks

Throughout my career (over 27 years as of the writing of this post), I have needed to identify where problems…

By Manny Fernandez

April 20, 2019

Using NMAP

On September 1, 1997, Nmap was first released in Phrack magazine Issue 51, Article 11.  Since then it has been…

By Manny Fernandez

April 7, 2019

Configuring Custom NTP Server on Fortigate

The Fortigate firewall comes pre-configured to use the Fortiguard time sources via NTP.  You can also configure the Fortigate to…

By Manny Fernandez

March 15, 2019

Connectors used in Networking

Here are some useful connectors. Note that I got them from random searches on Google. Power Connectors      …

By Manny Fernandez

March 8, 2019

Upgrading my ESXi 6.0 to 6.7

OK, I know. Crazy that I have a 6.0 ESXi server in my midst. The truth is, I do not…

By Manny Fernandez

January 8, 2019

SIPCALC

Anyone that has read my blog, knows I use sipcalc on my Mac. I used to use it on my…

By Manny Fernandez

November 21, 2018

Basic FortiSwitch Set Up

I recieved a FortiSwitch 248E-FPOE switch for my lab. The initial config is very similar to the Fortigate you can…

By Manny Fernandez

September 3, 2018

How DHCP v4 really works

If you ask people how DHCP works, most people will think that a computer gets connected to the network and…

By Manny Fernandez

March 12, 2018

Reformatting MAC addresses in Excel

Today, a customer asked me to add his 150 phone’s MAC address to their MAB Bypass database they use for…

By Manny Fernandez

November 3, 2017

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