Rowell Dionicio

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Rowell Dionicio

San Diego, CA

Founder of Packet6. CWNE #210. Host of Clear To Send. I write about enterprise IT from the operator's perspective and the gap between what vendors promise and what your team actually has to build and run.

Wireshark Name Resolution

Wireshark Name Resolution

We all want to work as efficiently as possible. After spending too much time staring at Wireshark pcap files and straining my eyes over frame exchanges, I got tired of looking for that MAC address I can never remember. In Wireshark, this is called Ethernet Name Resolution. Wireshark allows you

Passed JNCIA-Junos with Junos Genius

Passed JNCIA-Junos with Junos Genius

For many years, I’ve thought about taking a Juniper certification. Today, I have successfully achieved my first one, the JNCIA-Junos. This exam is the associate level certification for multiple tracks such as Data Center, Enterprise Routing & Switching, and Service Provider Routing and Switching. JNCIA-Junos Exam I

Income Report - Q2 2020

Income Report - Q2 2020

At this point in the year, I would have done several projects in the Bay Area and across the United States. I’m not trying to brag about it; the work is something I love to do and, in private - as my wife often hears, I sometimes gripe about the

Configuring a Cisco WLAN with WPA2 PSK

Configuring a Cisco WLAN with WPA2 PSK

How to configure a Cisco wireless LAN controller for a WLAN using WPA2 and a PSK, an objective of the CCNA 200-301.

Configuring CML-P Breakout Tool for MacOS

Configuring CML-P Breakout Tool for MacOS

The Breakout Tool for CML-P allows you to use your favorite terminal emulator such as iTerm2 in MacOS to console into your lab devices within CML-P.

Understanding Version Control with Git (Cisco DevNet)

Understanding Version Control with Git (Cisco DevNet)

Git is an open source distributed version control system for tracking changes in source code. Creating, saving, and tracking code can be very tedious if you’re constantly renaming them with different version numbers. As I dived into DevNet, I learned that this all could be handled more efficiently t

Cisco CML-P External Connector Connectivity

Cisco CML-P External Connector Connectivity

In order to properly manage your Cisco CML-P simulated devices, the VMware ESXi vSwitch needs to be configured to allow Promiscuous mode and Forged transmits. This allows ping and other management traffic to pass through the CML-P virtual machine.