Blog posts

WiFi Basics

Submitted by rayc on Mon, 07/04/2022 - 08:30

Basic WiFi 







Rule of calculating difference in power from mW to bd

If 0mw diff then power diff is 0db

If 50% or double then add or subtract 3db

If 10x or 10% of then add or subtract 10db


Submitted by rayc on Mon, 02/14/2022 - 15:32

There are a few different types of transmission methods for IP packets with the most common being unicast. A Unicast packet, is a packet that is sent from a single source to a single destination. Most traffic on modern networks would be unicast. Another transmission method for IP packets, is broadcast. A Broadcast message is sent from a single source, to everywhere. Each device on the IP network within that subnet will receive a broadcast packet. An example of a broadcast is a DHCP request packet.

Advanced BGP

Submitted by rayc on Tue, 02/01/2022 - 14:44

In my previous article, I went through the fundamentals of BGP and the basics of configuring BGP peers and advertising networks. In this article I will delve a little into just how powerful BGP route manipulation can be. First, let's take a look at the 4 typical redundancy scenarios that an organisation might use to establish their connection to their Internet Service Provider. 

BGP Configuration

Submitted by rayc on Tue, 02/01/2022 - 14:44

In the previous article, I talked a little about BGP and how it works. This article will go through the configuration BGP using both IPv4 and IPv6 addressing. For this article, I will use the following topology.

BGP Configuration Topology