Hello everyone, this is your host Habib Korea. And we are starting with topology two, which is OSPF Point to Point multi point point to multipoint non broadcast networks. In this topology we'll be creating a phase two dmvpn connectivity between r one r two r three. And phase two is basically mapping Static Maps between the remote sites. And if you are not familiar with dmvpn, I have created another course that basically describes dmvpn in details. I've talked about dmvpn phase in phase one, phase two, phase three, and I would recommend you to go and For the course in Udemy.

Now, with regard to this topology, let's get going. Basically it's straightforward to create a dmvpn between the sides who will configure OSPF area and zero will verify there's a neighboring connectivity and in the end, I will also reach s w two network via r three which has a better bandwidth link. So, let's start and with the topology, thank you. So first of all, we will go ahead and bring up r one, r two and r three consoles. Okay, so we have the console for our one. So let's start configuring it.

Interface F, zero slash zero will give it to my IP address, so 192 168 dot one. So that's perfect. We also know from our topology that we will need to establish static routes to r two and r three. So let's add those static routes. So I 01 92 dot 168 dot 225 525-551-9021 68 dot 110 0192 dot 3255255 2.5255 192 dot 168 dot one. Okay, so the reason why I'm putting 192 168 dot one dot 10 This is the gateway of this router to this internet cloud over here is shown as a switch.

So basically that's the gateway. We will configure this Switch shortly but I'm just trying to get ahead of the topology here the requirements for r1 and then we'll move into the switch configuration next Okay. So now what we can do is we will establish the interface tunnel for dmvpn interface tunnel one and we will assign an IP address which is hundred dot one dot one dot one 2.5 2.5 to 2.5 to zero as printed apology channel source tunnel sources FA zero slash router interface of the toll source and then there's a tunnel mode. Let's call it site doesn't matter it's locally significant IP nh RP map. It's going to be hundred dot one dot one dot two, that's for site two. And then this one will be going into 192 dot 168 dot two dot two and HRP Call 1319216233.

So that's the configuration in r1. For now a few things that I want to highlight it 100 dot one dot one dot 200 dot one dot one dot three, and also 101 dot one dot one. These IP addresses are usually called a and b. a, and that is actually a non broadcast, multi access address and that's these IP addresses are usually given by the ISP in any internet cloud. As I said, there's a dmvpn course that I have. I have done and if you have not To practice how to create dmvpn then that's that's a good course to go through it before you start going into routing protocol configurations. But the concept is here we you are learning dmvpn from this course as well.

So you're in good hands for now. Okay, so let's go into Archie. Okay, we are in our to, let's configure the interfaces for face zero address 192 dot 168 dot 22552552550 Don't we have another interface which is interface fa, zero slash one and the IP address is going to be 24 dot one dot 1255250. Now we will provide our two with the static IP route information to the other side. IP route 192 168 dot one dot one 25525251 to 10 that's the gateway for our 2.92 dot three dot 325 525-525-5255 the gateway to 10. Now, let's create a tunnel interface.

One IP address is 101 to 255250 Exactly the same configuration as we did in our one. Turn on mode. charge for it, man. Good to see that's the point at next hop routing Recall that dmvpn uses to establish connectivity between site r1. save that and now we will be going to our three will do this exact configuration back with the console for one start configuring interfaces address is that it's 192 168 dot 332550 there's another interface I wanted to point to DS w two IP address 24 dot one dot one dot 32552552550 provide static route to the other sites 192 dot 168 dot 125555 to the gateway is 192 168 dot three dot 10 ip route 192 168 dot two dot 2.5 2.5219 to trade. One more thing, we have to configure the tunnel as well here, IP addresses 1.1 dot 32552500 alone I'll keep going IP connection guiding 300 DPI HRP map 101 111 92 dot 168 dot one dot one.

So we have configured the, the three routers now we have to configure the two switches. Let me bring up the console. Okay, so we have the console for this which one which is the, the internet cloud and and we'll we'll configure the gateway IP address on all day interfaces with a switch that are connected to r one, r two and r three. So, start doing that did not accept the command as you could see for the interface range. So we know the ports are interface FA one slash one. In order just to make it a routed port, we have to know which port and then give it an IP address 192 168 dot one dot one dot one to 10 I believe.

Let's cut to the other interface to know switch. Right would be one night cheers 16 225-525-5201 thing we will do here is we're assuming that the service provider is providing this interface with a bandwidth speed of only 10 megabits per second. So I'm going to reduce it 92 168 dot three dot 10 255255 2.50 no show enable IP routing. So switch one is configured let's ping the The interface is better connected to the switch point oh one which is our one basically it's pink are two interface FA one slash three I apologize It's been a long day, no IP address 498 dot 168 dot 310 255255 2.50 we can apply the correct IP address which is 192 168 dot three dot 10 to apply 552552550 Are 363 Okay, perfect. Good here. Now we will bring up switch number two.

So basically switch two. We are not defining anything except a VLAN so called the VLAN 24. Let's say we don't have to name it and we will interface a one, slash two access switch forward 20 for spanning tree same thing, interface fa, one slash three, one slash, switch, switch. That's all you have to do in this switch will be assimilating is basically an access layer switch. In this in this topology I'm configured to teach VPN connectivity between the three sites. Let's verify if dmvpn has established and let's move on.

So let's bring up our to let me improve the phone. Okay, archers is here. So let's see show IP and HRP. So as you can see, we have connectivity between the sides are two can communicate to r1 via this IP which is the tunnel, one IP address and he and NPM addresses that Okay, so So yeah, so MPa, ma addresses the IP address that's given by the ISP. I may have reversed when I was talking about the internet cloud, but that's that's correct. So we verified that now.

Let's bring up our one and see if dmvpn stablish and r1 should be able to see r two and r three. Okay, we are here in r1. And let's see. So I and yes, we do see, we do see our one is able to communicate with our two routers here and here, which is great. That's perfect. So Now that we have verified everything we'll move on to the next task list which is establishing OSPF, routing connectivity and making sure the routers can see each other others routing, topology and sync and establish convergence.

Okay, thank you very much