Wireless for Network Engineers - part I

hello and welcome to sgn tech forum today we are starting a new video series called wireless for network engineer and what we are going to do we are going to do two basic tasks first is wireless controller install and then apply the base configuration so that our ewlc is available right so what i'm going to do i'm going to deploy a virtual 9800 cisco virtual 9800 controller on a hypervisor right so as you can see i'm going ahead and creating a virtual machine uh because virtually it's a kind of virtual machine only so let's name it and then you can download the oba file from cisco software webpage all right i'm going to name it ewlc you can obviously select from your local text desktop okay you can do a drag and drop so let me find my ova and i'm going to drag it as you can see this is c9800cl i mean the cloud version right and i'm going to install it in the same data store and deployment option as you can see there are three network nic cards mapping by default comes from oba script so three nick cards one is for management one is for ap or data network and the third you can use if you have redundant pair right so three nicks are available in cloud version by default and then we can choose the deployment type i'm going to choose the smallest one uh to restrict this virtual machine uh with the smallest resource requirement 1k ap 10k client pretty uh decent for my home environment right and this looks good so this is the complete configuration or summary of the configuration you're going to go ahead and deploy so when you deploy a ova file it actually try to upload from uh upload your software from your local machine to the hypervisor and then start deploying the virtual machine right so it will take some time because mostly the upload is the heaviest or time consuming part so i'm i pause the video and now you can see um we are going to login log back in this is my hypervisor okay my ewlc is already deployed because i pause the video for some time right so it's just like spinning up a virtual machine now you can see virtual services i have the d by default we switch 0 and i'm going to add a new switch because i need two connection one is management connection which is vm network and for data or ap vlan i'm going to create one another v-switch and connect a different physical nic or map a different physical nic to this virtual switch okay so let me go ahead and create a new virtual switch and i'm going to map that virtual switch which i'm calling ewlc let's create a port group so this port group the newport group ewlc ewlc data this is the my newport group that will be associated with this new virtual switch right so as you can see now we have two virtual switch virtual switch 0 and virtual switch ewlc one is serving management connection which is going to map to my geek ethernet one and the second is catering the data vlan that will be mapped to ewlc virtual switch okay so my ewlc as you can see this deployment is complete and now we are going to but it's not power on so let's go ahead and edit the configuration so that we can do the proper mapping let's do the edit setting here you can see i have three network adapter and all by default they all are mapped to the vm network which is my management so let's let me map first to vm network second to ewlc data and third i'm going to keep it disconnected because this is not a redundant environment i have only one ewlc so i essentially need two nicks one for my management and second for my data and these two virtual nics are mapped to two different physical adapters one is connected to my home network or management network and the second it will be serving as a ap data vlan okay ewlc is and now we are ready to power it on let's power it on you can see the bootstrap in console so it's booting the software and you will just booting just like a switch or mostly like a switch because it's a ios xc software with wireless functionality once it boots then we are going to apply the base configuration so that we do not have to depend on vm console to access my wlc because that's not the best way to access right i want to enable remote access like ssh and other things so that's what we are going to do when we apply the base config but still as you can see it is booting it is booting with package.conf and these things happen uh is going on by default as you power on your virtual machine you can see instance booted in private cloud that mean uh this is a cloud ova and you are running it on own hypervisor there is another version like where you can deploy it in public cloud and this 9800cl is available in that public cloud like amazon and google cloud okay but here we downloaded it and deployed it on hypervisor that make it a private on-prem install all right it is unpacking the software booting it and then we start seeing all the interfaces and the processes okay now watching the install boot is not very interesting part of it but i want to show you the complete configuration how to do the initial configuration as you can see it will ask you to continue with autoboot but that's not what we want to do so we will terminate the auto install and apply the base configuration manually okay you can see how to install trying dcp v4 on vlan 1 as you put any any input or from your keyboard the auto install process will be stopped so there is a plug and play functionality is there but we don't want to do that we want to and also we do not want to go in initial configuration mode we just want to configure it apply the configuration manually for the first time okay would you like to terminate auto install yes and this is you are in the config prompt now okay as you can see line vlan and other interfaces are coming up there is no ndp signatures and self-signed certificates getting created and pnp discovery is stopped okay you can run guest shell as well but we will talk about that probably in advance videos here is my prompt wlc the default hostname right and now show ip interface brief just like any io 60 switch you can see i have three interfaces and the wheel and one which is the default vln and it is in shutdown mode let's look at the default configuration real quick vtp mode off and some self signed certificates okay some class map three interfaces they all add up but no ip address or anything assigned interface vlan 1 is in shutdown state then line console and auxiliary config what is interesting here you can see lot of wireless related config because this is not a switch this is a ios xc wireless controller and that's where you will see all those profile and wireless related information here all right now we will continue uh to apply base config right so what we do want to do in a for base config for now apply uh ip address on a particular interface so that we and enable ssh ssd is enabled by default but we'll make sure that it is ssh version 2 another some basic housekeeping task to convert the vtp mode from off to transparent and a few basic config so that we can access it remotely but let's look at the config by default this this is the default config what you are saying i'm scrolling right now and now let me bring up the base config what we are going to apply and as you can see uh this is the base config we are going to apply which is host name uh username obviously we want to do a remote login so you need to configure username and password then name server domain server vtp mode i'm going to create one vlan which is vlan 10 uh and for now i'm not going to assign any ip address for vlan 10 that is my ap vlan and we will come back to that in later video for now just configure interface gig one and i'm going to apply ip address manually which is 192 168 1.250 which is my vm network or the home network and this is going to be used for management right so let's apply this configuration on interface gigi one gigi1 and enable login local on ssh because i do not have any external attacks environment here external authentication environment so let's apply this and then by once you apply that at that point of time that wlc will be available for remote access right now we apply the config from vm console which is a serial console right and too bad that you cannot do a copy paste from your local desktop to vm console so we need to hand type a few line of command here but once wlc is available for remote access then obviously you can copy paste and apply bulk configuration okay but the beauty of wlc is once you then the ui is available probably you may not have to log into uh cli at all you can everything you can do from the ui and apply uh procreate profiles and apply profiles right so host name username the the most a few lines of basic config what we need right let's apply that and quickly access it on ssh the name is in tech password is intact ip name server domain server so once my wireless controller is available remotely then next task is we are going to create the hierarchy or do the wlc configuration so that my ap can join this wlc that is the end goal and then we will start advertising few ssids so that the end end clients they can join those ssid and talk among themselves and also reach outside the network so that's that's the thing we are going to uh do um that's our end goal okay interface gig 2 we will say this is the trunk vlan our trunk port and right now we are allowing only vlan 10 so this is a placeholder okay vlan 10 is going to be our apb len obviously when you apply or allow the vlan on the trunk board you need to configure that vlan locally on the switch and ipssh is enabled by defaults but it's a good practice to enable version 2. let's enable the login on tty line which is vty telnet or ssh logins and i'm sorry it's going a little slow but i want you to see the minimum basic configuration what we are going to apply so that we can access it remotely right so sorry for slowing you down here but as we go to ui we can do things much faster and intelligently okay let's verify uh so two things we are going to verify is ui and ssh by default ewlc listed on port 80 and 443 and as you have seen i have already enabled ssh all right so let's verify ui and ssh so that we do not have to come back to vm console we can do everything remotely or from ui all right this is my terminal window the same ip address what we applied on interface giga and gigabit ethernet one that's the ip address we are going to use with the username uh sdnt yes we are logging in first time so it is going to cache the fingerprint okay apply the password enter the password and now you are into uh so you have a ssh into um the ewlc okay i'm sorry about the the alignment i think a few things you cannot see on my screen i apologize for that but as you can see we have created a vlan 10 which is ap vlan now let's go and access the ui so same username and password what you use for ssh you are going to use the same username and password to log into the ui okay and the ui may load may take some time as you can see you are at configuration setup wizard this is like initial configurations wizard and you can follow a step by step and um go to apply minimum basic configuration but this is not what we want to do we want to do a code skip this splash page and go to the main controller page how you can do here you do you you can see there is no skip option available so what you can do you have to set the ap country first on ewlc to get rid of this splash page so let's go ahead and set the ap access point country type first and to do that you may have to disable the radios 2.4 gigahertz and 5 gigahertz radios for first you have to shut them down set the ip country and then re-enable 2.4 and 5 gigahertz radios and that's what i'm doing first right uh i have said no ap dot uh 11 2.4 gigahertz shirt and then same thing for five gigahertz and i've said ap country us right so wherever you are you have to set the ap country so that controller know that where i am what is my rrm and other uh frequency parameters okay once you set that then go ahead and re-enable your 2.5 and 5 gigahertz radios okay and this time just say ap dot 11 no need to say no okay refresh it you'll see that splash page initial setup splash page is not reflecting anymore and you are into the controller dashboard okay here we are in the controller dashboard and it is a summary page as you can see uh we can see how many wireless lan wlan is there how many access point what is the utilization looks like so right now there is no wlan no ap configuration but we are interested in seeing the resource and other parameters so you can see uh host name device up time boot image cpu uses memory utilization the basic thing basic health of wlc controller because right now nothing is configured right other than the management network and in following up video we are going to configure all these pieces and make it a working controller for your home or office environment right there are a few tabs and i'm going to list um a video link in in the description where i'm going to talk about where i'm actually talking about all these different tabs dashboard monitoring configuration etc right so feel free to i highly highly advocate you to watch that video so that you are familiar with the options here okay and then you can see there are a couple of tabs on the app which is like save configuration go to home change the preferences how what what you are seeing here everything you can customize and at the same time you can refresh you can reboot uh from the ui itself right and finally if you want you can lock out using that button on the type right and this is also showing you the image which is 1733 at this point of time so in next video we are going to configure the apv lan and let ap join this controller and we will continue from there so thank you for watching

Channel: SDN TechForum

Views: 71

Keywords: Networking, sdntechforum, monitoring, cisco

Id: PsLSQdGw9k8

Length: 19min 5sec (1145 seconds)

Published: Wed Oct 27 2021