Configure and verify NTP operating in a client and server mode

NTPNetwork Time Protocol (NTP) is used to synchronize the time of network devices with a common reference time source. In a network environment, it is crucial that all devices operate on the same time to ensure proper network operation, logging, and troubleshooting. In this blog post, we will discuss how to configure and verify NTP operating in a client and server mode on a Cisco device.What is NTP?Network Time Protocol (NTP) is an Internet standard...

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Source NAT using static and pools

Configuring and verifying inside source NAT using static and pools on Cisco routers.NATNetwork Address Translation (NAT) is a technology used in networking to enable devices on a private network to access the internet. NAT is used to translate private IP addresses to public IP addresses and vice versa. It enables a network to have a single public IP address while all devices on the network use private IP addresses.  Understanding NATNAT...

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Determine How a Router Makes a Forwarding Decision by Default (with Respect to Longest Match)

Determine How a Router Makes a Forwarding Decision by Default (with Respect to Longest Match)Routing is the process of selecting the path that network packets will take from their source to their destination. Routers use a routing table to determine the best path for a packet to take. When multiple routes to a destination exist in the routing table, the router must decide which route to choose. One critical aspect of this decision-making process...

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FHRP

Purpose of FHRP  First Hop Redundancy Protocol (FHRP) is a set of protocols designed to provide redundancy and high availability in a network by allowing multiple devices to share a virtual IP address as the default gateway. This helps to prevent network downtime in case of a failure of the primary default gateway device. The three main FHRP protocols are Hot Standby Router Protocol (HSRP), Virtual Router Redundancy Protocol (VRRP), and...

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Metric

Understanding Routing Metrics: What are Metrics and How are They Used?Routing metrics are essential for determining the best path for network traffic to follow. These metrics are used to measure the cost or distance of a route and to help determine the optimal path for data to travel from one network node to another. In this blog post, we will explore what metrics are, how they are used, and how they are calculated, with a focus on routing tables.What...

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Administrative Distance

 Administrative DistanceIntroductionIn computer networking, routing is the process of forwarding data packets from one network to another. Routing tables play a vital role in this process by helping routers determine the best path for forwarding data. However, not all routes are equal, and some are more reliable than others. This is where administrative distance comes in.What is Administrative Distance?Administrative distance (AD) is a value...

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Next Hop

Understanding Next Hop in Routing TablesWhen it comes to computer networking, routing is an essential component that enables devices to transmit data between different networks. A routing table is a database that stores information about the paths to different destinations, which is used by routers to determine the best path for sending data. One of the critical components of a routing table is the Next Hop, which refers to the next router or gateway...

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Network Mask

Network Mask: What is it and How is it Used in Routing?In computer networking, a network mask (also known as a subnet mask) is a 32-bit value used to divide an IP address into network and host portions. It helps determine which part of the IP address represents the network identifier and which part represents the host identifier. Network masks are an essential component of routing, which enables data to be transmitted between different networks....

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IP Connectivity - Prefix

In the field of networking, a prefix refers to the portion of an IP address that identifies the network segment to which the address belongs. A prefix is a sequence of bits that specifies the number of significant bits in the network portion of an IP address. In this article, we will cover the basics of prefixes and how they are used in routing.What is a Prefix?In networking, a prefix is a series of bits that identify the network segment to which...

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Components of Routing Table

Routing is a critical function in networking that enables the transfer of data packets between different networks. The process involves finding the optimal path to forward the packet based on the destination IP address. The routing table is a crucial component of the routing process as it contains the necessary information to determine the best path for the packet. In this blog post, we will explore the different components of a routing table, with...

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