mtr stands for “My Traceroute” and, in a nutshell, it’s traceroute on steroids. They both work the same way: a host sends probing packets to routers, measures and reports latency and packet loss. mtr takes that to the next level by giving you the ability to run the probe packets…
We Are All Remote Workers Remote workers are on the rise. Over the past few weeks we have seen an escalation of events that led to a pandemic crisis. COVID-19 has taken the world by surprise. As a response, the world is moving from in person to remote. Any service…
The Need for Monitoring Profiles Network engineers generally want to organize their network locations by classifying them into groups, either geographically (i.e. region based) or based on users accessing the network from each location (e.g. sales office vs. R&D office), or based on the type of the location itself…
IPv6 Addresses Starting with NetBeez release 4.0, NetBeez agents will report and display IPv6 addresses on the user dashboard. This new feature enables network engineers who have deployed IPv6 to verify that their networks are properly assigning IPv6 addresses to their clients. This feature has been long awaited by our…
We have talked about the differences between iPerf2 and iPerf3 in terms of their reverse options. I recently noticed that the latest iPerf3 version 3.7 released on 06/21/2019 has an additional option to handle reverse testing, and I wanted to talk about it. Installation It takes a while for a…
How to Monitor SD-WAN There are several factors that should be considered when implementing an SD-WAN solution. One of them is network monitoring. In this post, we review some SD-WAN challenges and how network monitoring can help overcome them. Path Remediation and Failover One of the benefits of SD-WAN is…
When working on subnet addressing, we often have to look up and double-verify any address we deal with. Some of you have been doing this for so long that you can make all these calculations off the top of your head. But for most of us, it’s a cumbersome and…
Benefits of SD-WAN In a Software-Defined Wide Area Network (SD-WAN), a branch router uses two or more network connections to dynamically route traffic over one another based on its profile. For example, real-time Voice-over-IP (VoIP) traffic is sent through a low latency MPLS circuit, while high bandwidth applications that don’t…
We have already discussed packet analysis with tcpdump but will dive deeper in this post! Tcpdump is probably the most popular and capable tool that allows you to dig down to all the bits and bytes of network traffic, including TCP flags. Ngrep, stands for “network grep,” and like its cousin, the…
What is an RFC1918 address? An RFC1918 address is an IP address that is assigned by an enterprise organization to an internal host. These IP addresses are used in private networks, which are not available, or reachable, from the Internet. In fact, one of the basic requirements of the Internet…
