A wireless router is a network device that can broadcast radio signals for end devices to connect wirelessly and also perform routing functionalities. In essence, a wireless router does the job of a router and that of an access point. By default, end-host devices in packet tracer have an Ethernet module on their interface, and […]
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In this article, we will introduce Packet Tracer; a simulation software that facilitates the setup of a network lab, enabling hands-on practice in configuring network devices such as routers, switches, and PCs as if they were real-world devices. In information technology, practical experience is important. In CCNA, it involves hands-on practice configuring Cisco routers and
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Welcome to this complete CCNA Cisco Certified Network Associate course. This is a complete course for the CCNA, including everything you need to know in order to pass your CCNA exam. There will be a tutorial article for every topic in the exam topic list, which will explain in detail everything you need to know
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The Dynamic Host Configuration Protocol (DHCP) automates the assignment of IP addresses to host devices on a network. A DHCP pool, which is a pool of the range of available IP addresses, is created on the DHCP server. This server leases IP addresses from the pool to any device with DHCP enabled on the network.
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The dynamic host configuration protocol is a protocol that automatically assigns an IP address to any host devices connected to a network. Once any host device that has DHCP enabled is connected to a network that has a DHCP server, it will automatically obtain an IP address from the DHCP server. This is normally used
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NTP is used to synchronize the clocks of devices in a network and ensure that they have a consistent and accurate time reference. However, without authentication, malicious actors could potentially manipulate or disrupt the time synchronization process, which can lead to security vulnerabilities. NTP authentication enables secure communication between NTP servers and clients by requiring
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The Network Time Protocol (NTP) is a protocol used for synchronizing time across various network devices within a network. By default, network devices rely on their individual hardware clocks, leading to time disparities that not only deviate from real-world time but also vary among different devices. Manually configuring time on each network device is a
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Syslog is an industry-standard protocol used to log messages about events that occur within a network device. On a network device like a router or switch, syslog can display messages about the device, like the interface of the device going down, the OSPF neighbor status of a router with another router, etc. Logs are very
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A web server is a server that delivers a webpage to a user when requested using a browser. When we surf the internet, we are actually making a request to a web server for a web page or file. A web server uses two basic protocols to render its service: HTTP/HTTPS and a DNS service.
Trivial File Transfer Protocol (TFTP) is a file transfer protocol utilized for backing up the configuration of a network device to a server or retrieving a configuration from a server to a network device. Backing up the configuration of a network device to a server is very important, as it helps prevent extended downtime in
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