What Are Common Network Security Threats? As the world is fast becoming a digital textbook, network security threats are a significant concern , where the integrity, confidentiality, and availability of information are paramount. These threats can come in various forms and from different sources, often seeking to exploit vulnerabilities in network systems. Understanding these threats is crucial for… Read More »
What Is Extended ACLs? Extended Access Control Lists (ACLs) are an advanced feature used in network devices like Cisco routers and switches to provide a stricter level of control over network traffic than standard ACLs. While standard ACLs filter traffic based solely on the source IP address, extended ACLs can filter based on multiple criteria, including: Source and… Read More »
What is eBGP? External Border Gateway Protocol (eBGP) is a BGP term or process used when referring to BGP peers or neighbours that are in a different Autonomous System and Number (ASN).In other words, eBGP is used to exchange route information between different autonomous systems. When only one link connects two autonomous systems, the IP addresses of the connected interfaces are… Read More »
Troubleshooting Access Control List (ACL) errors. Using the show commands reveals most of the more common ACL errors before they cause problems in your network. When you look at an ACL configuration, check it against known rules you learned regarding how to build ACLs correctly. Most errors occur because these basic rules are ignored. The most common errors are entering ACL… Read More »
Understanding the Border Gateway Protocol (BGP) The Border Gateway Protocol (BGP) is a sophisticated and advanced distance-vector routing protocol, often categorized as an Exterior Gateway Protocol (EGP). In various sectors, it has earned the moniker of the “big dog” of internet protocols. Interaction Between Autonomous Systems BGP facilitates the exchange of routing information between different Autonomous Systems (ASs).… Read More »
