GRE Tunnels between multiple sites
A GRE (Generic Routing Encapsulation) tunnel in Cisco is a method of encapsulating and tunneling network traffic over an IP network. It allows the creation of a virtual point-to-point link between two endpoints, typically routers or switches, across an existing network infrastructure. Here’s how it works: GRE tunnels are often used for various purposes, such […]
What is RIP Protocol in networking? How implement RIP on routers?
RIP, which stands for Routing Information Protocol, is a distance-vector routing protocol used in computer networking and particularly in Cisco networking equipment. RIP is one of the oldest and simplest routing protocols used to exchange routing information between routers in a network. Cisco routers can be configured to use RIP for routing purposes. Here are […]
What is HSRP protocol? How to implement on the network?
HSRP, or the Hot Standby Router Protocol, is a Cisco proprietary protocol that enables two or more routers to work together in a group to present the illusion of a single virtual router to hosts on a LAN. The main purpose of HSRP is to establish network redundancy and avoid single points of failure, thus […]
Cisco IOS and running-config backup to TFTP server
Backing up the Cisco IOS and running-config is extremely important for several reasons: To summarize, backing up the Cisco IOS and running-config is critical for ensuring network availability, performance, and security. It is a best practice that all network administrators should follow to avoid potential issues and minimize downtime. First create your TFTP server on […]
Cisco switch/router SSH configuration
Configuring a Cisco switch for SSH connection is an important task for network administrators. This process requires a good understanding of the Windows OS and network protocols such as TCP/IP, traceroute, etc. In this article, we will discuss the steps to configure a Cisco switch for SSH connection and how to troubleshoot any issues that […]
What is “traceroute” command? How does it work on Windows OS?
The traceroute command is a network troubleshooting tool used to trace the path of data packets from one host to another. It works by sending out a series of TCP/IP packets with increasing Time-To-Live (TTL) values. As each packet passes through switches and routers, the TTL value is decremented until it reaches 0, at which […]
What is dynamic routing in Cisco? How to create dynamic routing on router devices?
Dynamic routing is a feature of Cisco routers that allows them to adjust routing paths based on changes in the network environment. It allows for more efficient use of router resources and helps ensure that traffic is routed optimally. With dynamic routing, router devices can automatically select the best route for data packets to reach […]
10 Most Used Commands on Cisco OS
#enable This command enables users to enter their commands on the terminal. Moves user to privilege mode. #configure terminal This command allows users to make some changes on the configuration. #show running-configuration This command shows you the latest running configuration on the device. To not to lose your latest configurations which you have done, you […]