Virtual Labs - GNS3 Setup

6. IOS Default Topology

About the genes: Three iOS topologies are set up, so this topology will most likely configure some basic steps of adding ibis routers and then setting up a basic topology here. So the prerequisite again, I already added the images previously. We'll drag and drop the routers and then we'll get into the command line and save the topology with the initial configurations. So once you install the DNS three and when you open it up, this is what you'll see for the first time, and of course, you'll see these green symbols indicating that it's working. You can also integrate with VMs that I'll show you later. So you need to go to the new project and you can save this with some name, like generally you always want to save this in your folder. selected folder and then clicked okay. So you have to save the file initially in the new genus three. You can see I'm using the two dot version. Two dots, one dot, zero. B one. But again, this is like a beta version. So next thing, you can drag and drop the routers. Of course, you can only drag and drop the routers for the images that you have added. So I've already added the images for all this one. So I'll be using some router, like 36, let's say. So I need four routers Drag and drop the four routers to fit your needs and topology. You need to design your topology and then you've got a cable connection here. And again. If you are using the default settings, You probably saw this one.

This is the default view. That's what you'll see generally if you're reinstalling, so I don't prefer this view. I can change the view, generally the legacy option probably. So it's something that I prefer, and I drag and drop the routers as per the topology and connect them using the cable depending upon the models you add. You'll see the options. As per my topology, I'll be adding serial models to the routers. So if you just want to verify the models that I'm using, you can select the routers, so you can see it automatically saves the topology, because if I just select the routers here and go to configure, you can see the slots. I'm adding an NM 40 card with two Ethernet cards to the slot zero. If you are using the same router models, you'll probably find similar cards. I'm connecting s one by one going to s one x zero as for my topology, because the initial confits are based on this topology only, then s one by one going to s one by one. So I don't need to connect any LAN interfaces. But you can simulate a virtual switch or a hub which is unmanageable.

You cannot manage this and you can connect to the switch. This is something you can also do. But generally I don't really prefer to just use the no keeper command to make the interface up, even though it is not limited and once you're done with this you need to start the routers. You can select the idle PC values to calculate and it will give some values in general. You can select any of the options here or preferable the star values to apply and okay, so your topology will be automatically saved again. You can also use some kind of auto ID values. Auto ID values are like how it will automatically adjust the ID values, so if you want, you can select the manual or auto ID values. So, if the auto value is set, the CPU will be minimized automatically, and it may go as low as 20% depending on the performance of your machine, the processor, and the RAM capabilities. So the next thing is, once you set up this, we need to make some changes to the configuration, like getting into the command line, so we can use something like the console option to get into the command line in general, so I'm using Secure Crist because I have changed the integration with this one. So if you have any license security programs, you can use them. Generally, the default option will be Putty here. So Putty comes by default, so you can either use Putty. So if you just want to manage multiple views, you can use some external tools like Putty or Supercut, which allow you to open up the console screens in multiple tabs. So I do prefer this, so that's the reason I'm using it. So you can click on console to open up the console of all the devices and you can see the routers are done with the process and there is no initial configuration present, so you probably want to do the initial configuration, so you need to copy and paste the initial confits.

I'll type down the initial configuration as it is, but I do have initial configurations already in my Notepad, so I'll copy this and I'll paste it here. Of course, make sure that you view the right command. The right command will ensure that your initial configuration is also saved along with your topology. So I got all this conflict in the notepad already just to save time, but of course, if you are doing this for the first time, you need to make sure that you type in automatically. When you select anything here, it will copy and whenever you right click automatically it will paste. So you need to know the default interface, even in the booty. Also, when you select anything, it will automatically copy. When you right click, it will automatically test.

So, in terms of security, I've set the same options to copy the initial configurations on router three, and then right click will paste and copy the initial configurations on router four as well. And then I'll copy and paste the router four as well. At this point, you don't need to save the topology because, at the back end, the topology will be automatically saved. You need to say show IP interface brief to verify the initial conflicts. You can see all the initial conflicts are loaded and then you can use this topology for future use if you want to use it later on. Most of my labs will probably be based on this kind of IP address. Of course, I don't do any routing because the routing protocols may change depending upon the requirement. So now you can stop this topology and you can stop these routers and close the topology. Whenever in the future, if you want to use the topology, you can actually open up and you will be loaded with the same topology with the initial confits. Let me just quickly show you. I'll try to open up this genus three once again. I can open up the recent projects or I can go to file from where I can load my topology. So you will see the topology will be saved. That's what I'm expecting here. And if you want to verify the configurations, we can go and start a specific router or all the routers, and then open up the console screen to verify and make sure that your initial configuration is saved because you don't really want to do the initial conflicts all the time for implementing the labs. So you just configure it.

7. GNS3 Topology-HOST Computer

In this video I'll show you how to add the three topologies to your physical computer. The Windows machine I'm using this because this is really useful, especially when you are running some kinds of applications, like when I'm discussing some topics like existing log servers or maybe someSNMP, or maybe you want to manage your router via GUI graphic interface by using CCP, or you want to manage your as a firewall through Gy. We must install some applications here and we can connect your physical computer, which is installed with those applications, and I can manage the devices in the gymnast topology. We'll probably be seeing these things in the future, so it will be useful, but at this point, we'll see how to connect a router.

Of course, the router is the same process connected to the physical computer. Now, for this on my computer, I need a virtual interface, the logical NSA card. Now we can either add a Microsoft loopback adapter, which is something you can add from hardware via probably some steps, or you can google it to find out more. I can also use some virtual interfaces, so generally you can simply search on the internet for things like how to add a Microsoft loop adapter on the Windows Seven or Windows Ten machine, whichever you're using. You'll find some different links here, you'll find some steps again, so this is something you can do from a device manager. Add a legacy hardware, select the network adapters, and select this Km test interface. Then click next. You might need to restart the machine. Once you do this, you'll probably see this NSC card here. So what I can do is I can virtually connect this NSC card to my Gnus topology, but in my topology in my lab, I'm not using this loopback adapter.

If you already installed VMware on your machine, you will see some virtual NAC cards, virtual VMAT interfaces, and by default, it will install two VMAT interfaces, like net and VM net One. So you can also use these VMAT interfaces to connect. So if you are using VMware already installed on your machine, you can use those VMware interfaces to also act as a virtual NSC, and I'll be using this. Of course, I added more VM interfaces for multiple lab scenarios, so I'm using this net for interface to connect. So the first thing you need to have is your topology, so I do have my topology here. So let's say Let's start with the router one, and what I'll be doing is I'll be setting up my topology something like this. I'll be connecting this topology.

The router one I'll be connecting to my PC here and the IP address I'll be using is ten ten here and, of course, the IP address here is already configured with ten one so you can connect to a switch or hub if you're connecting multiple devices I generally prefer connecting directly, so what I need to do is drag and drop the cloud here And once you drag and drop this cloud, we need to click on the configure option and you can delete all the interfaces. You must select the specific interface that you want to use. I have already configured the IP address, often the same summit mask and the gateway tends to Implore as you do with a normal interface. I have also renamed it because when I use multiple interfaces in my labs, it's very difficult to differentiate which interface is used for what purpose. This cloud is virtually connected to your physical computer via this interface and select the cable and then connect.

This is more like connecting your cross cable between an physical router and a physical computer. Now for testing, you can go to the router one console one console. I can say show IP interface just to confirm my addressing is perfect and I can go and saying command to make sure that you're able to pinch PC and if you see the pin is not working, make sure that your file Wallis disabled. Of course, you need to check the file also lend the genus application while installation and if you see one repeating works, then mostly the firewall will be an issue You can also go to the command prompt and check from the command prompt to verify the reachable router. You should see the reply come.

8. GNS3 - VMware Setup

Via integration Now this is typically required if you want to simulate some kind of iOS V where there is a layer to allay three images or any viral images or if you want to integrate some Ivy images or ASAP images. If you want to run other vendor products, you must integrate them with VMware because those images are compatible with VM. So you probably need some VM integration for this. So, basically, the first step is to make sure you have VMware installed with a license, which I do, and you can see the Gesture VM workstation I'll be using here. Next thing, make sure that you also download the Genes Three VM file. Now you can go to the three official websites for downloads. You can use this download option and then you need to download. This is a GNS three download link, and you have another link to download a VM for the Genes three, so make sure that this VM matches the GNS three setup file. Because, in general, in my scenario, I'm using the GNS 3210 beta version, so the VM file must be compatible with that version. So the basic prerequisite is like the version you're using and the VM must be on the same version. So here I'm using this version, so I probably have the same VM file linked inside the VMware. Now the next thing you can actually do is follow some steps that are present inside this documentation, gymnast documentation. You can go to that particular URL, I think this one, them genesis set up with the gym VM. So you have the option of using Virtual Box or VMware, with VMware workstation being the preferred option. Or if you're using some advanced users, you can use Six for advanced users.

But again, you also have some reference videos which you can use to follow the exact same steps. These are available on YouTube from the GS trio. You can get into this link like which VM to install. Again, as I said, if you are specifically using the GNS three, one, five, or two, you have to use the same image. You can see the image here. Again, these are the screenshots of the older versions, but still make sure that it matches. And this is going to be a setup file you download and probably need to open the VM and then open the virtual machine. You can go to File and Open, and then you need to select this image. Once you extract that image, you need to select this Gnsavm file and then select the hardest way you want to save the file, and then it'll automatically start importing and you'll see this option. So I probably did it already here, so I don't need to do it again. So you can either power on the VM directly from here, or you must also integrate it from GNS three. Because when you integrate with the GNS three, probably whenever you open up the GNS three, it will automatically power on this VM automatically. I already linked here, but I'll show you some steps here.

You can see some of the steps on how to configure this. You need to get into this setup without having to select this option to run modern Ibis. This is the first option because here we'll be using GNS three VM and then you can select the option to host bindings. Typically, only this option, you can say next, is available. So once you click on Next, okay, so if you just get back here, this is the local server configuration. So, normally you don't need to make any changes to this configuration because it's still the same thing. So click on Next and then it will ask you which programmer you have been using for integrating the VM. So, in general, we use VMware and then select the file and the code processors, which you can also use if it supports it, and you can allocate the amount of memory or RAM to your flight before clicking Next and Finish.

So mostly the same steps you have to follow as per the videos here, you'll just ask for the screenshots here. And if you're running some high-end processors, you can also dedicate some four code processors, which will add some more RAM if needed, and then that's it. So once you click on "Finish," you'll see this option, this option. Now from here you can add the Ivy images if you have them or any other options here, but of course we'll do it in a separate video and you'll see this VM will be complicated and if you're an advanced user, you can go to Edit and Preferences. If you go to Jesus' three VM option here, you'll see it's by default enabled and we'll be using the VMware workstation on the player and generally the VM. When you are selecting the VMware, it will automatically list out the images that are present inside the VMware. Here you can see it. I got multiple images and you can simply say "select action." Like when you are closing the gym, you can suspend it or stop the VM. And this is like default settings, you just leave it to default. So most likely, if your VM in the gymnastics is working, you will probably see this green button, which says that it's working. So you probably need to do some kind of troubleshooting because in general, whenever you power on the VM like here, you can see there's nothing you do just to power on the VM. You see, you see this output. Now based on this output, you see some IP address will be pre-configured and we install them automatically. It extracts the IP here, like in this case, it is using a 9128 IP address. So what you need to do is to make sure that if you are troubleshooting GNS three, if GNS three is not able to communicate with the VM, make sure that these two are on the same subnet, meaning in the PCs, whatever the Nick which you are using here, you can go and check the settings. So inside the VM settings here, you have an option for a network adapter.

So here you can see I'm using the VM net One interface, which means in my case this JNS three is using the VM net One interface, which is a logical NSA card PC connecting to this VM. So make sure that the IP address on this VM network interface must be on the same subnet as on the VM. It must be from 190 to 168 nine subnet because the VM is running 9128. So, practically, if they are in different subnets, it's not going to work. So if you don't make any changes to the VM,generally it will select the IP dynamically from the VMs. But this is something you need to know because when you're using multiple VMs, you may want to use different nicest for different scenarios. As an example, look at this VM net One. I think this is the interface. What is Veneto One? I have changed the name because I don't recommend you changing these names because it's very difficult to see that interface. You can see I have configured nine one and this is them net one interface and from the PC you should be able to pinch the VM in general, like 128. What is 9128? So that works. So this is something that runs automatically, but most of the time you don't need to do anything. But if you are doing some kind of troubleshooting where your GNS three is not able to communicate with VM.

9. GNS3 - IOSv L2-L3

The next thing in this video will see how to add IVC images by referring to some of the gym's documentation which are available on the gym website. So these are the same three links. When I open this up, you can see that the basic steps are like the first thing we assume is that we have the GNS three already pre-installed and that it is integrated with the VMware because the Gesture VM is already running on your computer. So basically, you'll see the steps here. If you want to get some more information on the virtual iOS, you can visit the Wild Cisco website. So it's a virtual programmer which allows you to run these images, and you'll find some information on this. Now, if you want to simulate these images here, you need a couple of files. Like the first one, you need an appliance file. So when you click on this link, you can download the appliance file, which is iOS v.

You can see here it downloads and the next thing is that you need the image file, and the image file is this one. You need this image file, the virtual iOS image file similar to the iOS images. And this file needs to be integrated with the help of this appliance file. So again, you can download this by going to the website here websites. If you have these images properly downloaded, you can use the official login to do this. You can use any of these images. It depends upon what image you have. So here I'm just assuming as if you have downloaded this appliance file and you have this image. So you can probably probably the next thing. Let's say these are the steps you need to follow up. I go to jail three and select "Import Appliance." So once you set the important appliance, you need to select the appliance file. Now this appliance file, whatever you have downloaded here, needs to be selected and the same steps apply whether it is iOS v, whether it's a layer two or layer three image, even similar steps. You do the same thing for the ASAP as well. So once you download this, select this file, you will get these options depending upon the file. Whether it is a layer one or layer three, it will show you these options. Click on Next and then you must select this appliance must be running with the VM and we assume the VM is already integrated with the GNS three here, which I showed in the previous video.

And then you just click on Next and finish. And once you click on Next, then it will show up some options here where you need to integrate the image, the file, actually the iOS v files, which you have downloaded from the Cisco website using your partner logins once you click on Next. So if you have the images, you can probably add them. If you have the specific images here, you can select whatever the image you have and then click on Next. It's all the next steps that you just need to add. Or if you don't have an image, you can also go to a download option where you can also download the image directly by clicking this button here. And once you select the image now again, once you select this option, you need to select the actual image here and then it's all the same steps. Just click on Next and then Finish. And once you add the image, you can probably use it to create a new version. Let's say you don't have this version image, maybe you have downloaded some other image. You can actually click on the new version and add that version.

You can also add that iOS V file. So it's not mandatory that you must use the same version, but again, the version has to match whichever you select. If the existing list of versions doesn't have those images, then if you have any other images, select the option with a new version and just give the version name and try that one. So again, you have the steps for this as well. If you get back in the last, you'll probably see some steps there as well. So once you add these images, you will see this iOS VL 215 two appliances will be added. They will show you in the install list devices probably when you click on this button here. And now you can go to Edit and Preferences. You can also add from here. This is where it actually shows up in the king of VMs, these images. Finally, you can drag and drop these images to existing devices such as routers, iOS, or other devices, and then start and console the device just like any other device. And now you can simulate your iOS V images, whether it is a layer two or layer three. Again, this is more applicable for layer two options because you can still simulate layer three devices with iOS.

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