Networking For Dummies, 11th Edition (For Dummies (Computer/Tech))

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Like all networks, a Cisco network needs to be properly configured. To do so, you need to know the configuration modes to use when configuring your network. You also should know how to configure an interface, configure a switch management interface, and configure an interface to use DHCP for your Cisco network. Configuration modes for Cisco networking When designing networks and choosing connection protocols having an understanding of these topologies is important. This allowed networks to be aggregated, reducing the number of entries in the IP routing tables, whilst also allowing for greater efficiency in IP route processing. Variable Length Subnet Masking (VLSM)

Router1(config-if)# ip nat inside Securing your Cisco network by configuring an access control list (ACL) Distribution switches: A distribution switch is a switch that isn’t designed to directly support end users. Instead, it’s designed to connect the access switches to each other and to your servers. Because the purpose of distribution switches is to manage the aggregate traffic from all the access switches, distribution switches are sometimes called aggregation switches . Enhanced Interior Gateway Routing Protocol (EIGRP) is the updated version of IGRP. The following code will enable EIGRP using an autonomous-system (AS) number of 100, distribute two networks and disables auto summary. Router2> enable Global Configuration mode: Global Configuration mode is where you go to make global changes to the router such as the hostname. To navigate to Global Configuration mode from Privileged EXEC mode you type “configure terminal” or “conf t” where you will be placed at the “(config)#” prompt. OSI model concept designed to standardize the system of communication between devices in a network. It consists of seven layers.WAN: The second TLA you’re like to encounter is WAN. The WAN is part of the network that connects to the Internet. WAN stands for wide area network. (Okay, fine. Technically, WAN is the third TLA. The first TLA was LAN, and the second TLA was TLA. So that makes WAN the third TLA.) Routers connect multiple networks together. They also connect computers on those networks to the Internet. Routers enable all networked computers to share a single Internet connection, which saves money. For your router interfaces the following example will set speed, duplex and IP configuration information for the interface FastEthernet 0/0 (notice the interface reference as slot/port). In the case of the router, the interface is enabled using the no shutdown command in the final step; interfaces on switches are enabled by default. Router1> enable

If you want to configure either a router or switch to retrieve its IP configuration information from a network Dynamic Host Configuration Protocol (DHCP) server, then you can commands like the following example. Router1> enable Not so easy and fast to setup as it requires running cables. However Homeplug or powerline adapters can be used instead. Computers, as we now know, apply to all fields of endeavors, be it agriculture, education, medicine, technology, transportation, and so on. Therefore, there is an obvious need for an organization to have an inter-network of its computers to further aid data sharing and retrieval, and efficient management and use of computing resources. Not all switches are created equal. Some switches are designed for very small networks in homes or single-office businesses. Small networks are so simple to manage that the switch itself doesn’t require any management or configuration of its own. You simply plug all the computers into the switch, and the network takes care of itself.Computer networking is a means by which computers are interconnected to share data and information, resources, and all other network devices such as printers.

This short video shows how to use a Wireless Home Hub ( BT) or router to create a home network that is connected to the Internet. ACLs are used to control traffic flow. They can be used allow or deny the flow of traffic. The two main types of ACLs are: Sub Prompts: There are a number of different sub prompts from Global Configuration mode you can navigate to such as the interface prompts to modify settings on a specific interface, or the line prompts to modify the different ports on the device.

The following sentence threw me off and I wasn’t able to completely understand what you were trying to say… Your home router is your gateway to the Internet. When viewing your configuration some devices refer to it as the default router whereas other use the term default gateway. on: Forces the connection to bring all links up without using a protocol to negotiate connections. This mode can only connect to another device that is also set to on. When using this mode, the switch does not negotiate the link using either PAgP or LACP. This is the ability of a network to expand such that it gives room for more devices to be interconnected and integrated into the network without causing any major changes to the whole network.

My configuration- ISP-> 5 Port Router-> 16 Port Switch-> 5 Port POE switch. Each connected to the router.If you are completely new to networking then the basic course will introduce you to the basic networking protocols used in small home/office networks and on the Internet. A subnetwork or subnet is a logical subdivision of an IP network.The practice of dividing a network into two or more networks is called subnetting. [2] Of course, computers can exchange information in ways other than networks. Most of us have used what computer nerds call the sneakernet. That’s where you copy a file to a flash drive or other portable storage device and then walk the data over to someone else’s computer. (The term sneakernet is typical of computer nerds’ feeble attempts at humor.) The web (WWW) is a client server network at the logical level. Peer to Peer and Client Server Networking The solution to this issue came in the form of - Classless Inter-Domain Routing (CIDR) and Variable Length Subnet Masking (VLSM). Both of which are key to modern day subnetting. Classless Inter-Domain Routing (CIDR)