Subtitles of the Movie

Cisco routers are like little computers that have one job in life, and that is to route packets from one network to another. And Cisco switches are like little computers that have one job in life, and that is to filter traffic to provide for greater bandwidth; so they each have an operating system. We'll take a look at the Cisco IOS that provides the operating system for these devices, and we'll examine the boot system configurations, in other words, how we can control the operating system. We'll also take a look at how we would interpret an IOS image file, and how we would back up an IOS image. We can also load a new image file from another device; in other words, one router can take its IOS from another router. So the IOS is an important aspect to understand, both for real life as well as for the test, and we'll go into great detail about the Cisco IOS. We will also discuss the command line interface. The Command line interface is our way of telling this computer, this router or this switch what we wish it to do. There are many different modes that we can use in the command line interface and we will take a look at what these modes are, and how we use each one. For example we will take a look at the privileged exec mode management. Privileged exec allows us to do tasks and to look at information that we would not otherwise be able to look at if we weren't in privileged exec. We will take a look at the initial set up and configuration of a router and a switch. And what would you expect it to look like when you first start it up, and how we can set it back to its initial set up and configuration should we need to. We will also look at password management, it is important to keep these devices secure since they control the flow of our network. We can also add a banner, which just basically says welcome to this router, or it says go away unless you are a certain person. We can use a banner and a password to threaten and keep people out of our systems. Then we'll take a look at the command history and editing of the command line interface. In other words, there is an easy way to work on the command line interface and there's a hard way. The easy way is by using command history so we don't have to type as much; we'll take a look at how we can use command history and editing functions to keep from having to type every line out again. There's also context sensitive help built into the Cisco command line interface; we'll take a look at how we can use this context sensitive help. Then we'll turn our attention to network management in general; we'll take a look at how the command line interface allows us to manage the network using show commands and other command lists, and then defining access lists. Access lists say that certain groups of IP addresses or certain groups of protocols are or are not allowed to pass through certain interfaces. And we can define standard access lists, and extended access lists; we'll compare and contrast standard access lists and extended access lists and take a look at how we can configure each one. Then we'll discuss router security in general; as we said these are little computers, we need to keep them secure so that we are protecting our network. Finally we'll discuss taking and passing the Cisco 640-607 test. The purpose of this training is two-fold; number one, that you would become familiar with and comfortable with the Cisco routers and switches with which you are going to work; and number two is that you will be able to take and pass the Cisco 640-607 test. So I am going to give you some tips on taking and passing any certification test. I have taken many certification tests, including this one and I will give you some tips on how to take and pass a certification test, and then some tips on what to do the day of the test, to get mentally and physically prepared to take a certification test. So we've got a lot to talk about and we'll start off in the next module discussing the OSI model. That's next. a certification test. So we've got a lot to talk about and we'll start off in the next module discussing the OSI model. That's next.