How to Reset Cisco 7821 | 7841 IP Phone to factory default – 2023

how-to-reset-cisco-7821-7841-ip-phone

Method 1: Steps to reset Cisco 7821 IP phone using Keypad Power of the IP phone If connected with a direct power cube, remove the power cube. If connected with PoE (Power over Ethernet), remove the LAN cable….

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How to disable Automatic DNS Lookup In Cisco Devices

how-to-disable-dns-lookup-in-cisco-devices.

What is the automatic DNS Lookup? DNS (Domain Name System), is a system that is used to translate a domain name to an IP address. In Cisco devices, this lookup feature is by default enabled. So, whenever someone…

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How to configure Static Route | Windows | Linux

how-to-configure-static-route

Hey, sometimes we have to configure a static route to connect to a network. Like routes, our host machine maintains its routing table. These routing tables are defined in the Operating System Kernel. In this article, we will…

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Dynamic Routing : A Complete Guide for Beginner and Expert

dynamic-routing-protocol-in-routing

Dynamic Routing is a routing process in which routers share their routing table with the neighbor router with the help of various routing protocols. This routing process is widely used in the enterprise network. In, this article, we…

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Static Routing : Everything you need to know

what-is-static-routing

Static Routing is the routing process in which network administrators manually configure static routes on routers. Unlike dynamic routing, in static routing, a configured network route does not change with the change in the network. Further, in this…

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IPv4 : Different Classes and Address

ipv4-different-classes

IPv4 (Internet Protocol version 4), is the 4th version of Internet Protocol. We have a large number of addresses in IPv4. In this article, we will discuss various classes defined in IPv4. History of IPv4 At the beginning…

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IPv4 : Private and Public IP Address

public-ip-vs-private-ip-address

In this article, we will go discuss Private and Public IP addresses of Internet Protocol version 4 (IPv4). Both, have their different usages. After reading, this article you will understand their different usages, address spaces, VPNs, and Reversed…

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OSI vs TCP/IP Model in Computer Networking – Explained in details

tcp/ip-model-vs-osi-model

In this article, we will discuss the differences between OSI and TCP/IP models. Both models help us to understand the data flow between sender and receiver using different networking protocols. Let’s discuss both of them in more detail….

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IPv4 : Internet Protocol Version 4 (Explained with Header)

introduction-to-ipv4-header

In this article, we will discuss IPv4 in detail. IPv4 stands for Internet Protocol version 4. It is the 4th version of Internet Protocol and widely used protocol in communication over different types of networks. It was discovered…

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TCP/IP Model – Explained 4 Layers of TCP/IP Model in detail

tcp/ip-model-in-networking

In this article, we will discuss the TCP/IP (Transmission Control Protocol / Internet Protocol) Model of computer networking. It is a reference model that is designed to understand large and complex network architecture in a simple layered approach….

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