 Okay, so in this video that we're gonna be continuing our setup of the Cisco call manager Express and We are using this Configuration example from Cisco. You can see it right here. It's and we're not gonna be doing the unity portion of it Here's the The steps we've already updated our network diagram almost we haven't quite figured it Finished with it yet and the next on the list was to divide define our DHCP server. So There we go. So here's the going I'm going down there Document here and the last video we kind of went through this already So here's our network diagram check. We've got a network diagram and the next on the list was this Defining a local DHCP server. I'm not gonna read this whole thing to you But I did want to point out a couple things right here. It says for this configuration. We're gonna create Two local DHCP servers one for voice and one for data And it says when you create two DHCP servers, they're for two different networks, which makes sense, right? And the other one is This is a little bit confusing to me I didn't quite understand what they're where they're going with this But it says this procedure creates a shared pool of IP address in which all DHCP clients receive the same information that include option 150 for TFTP server IP address and the benefit of this of the selection of this method do set up DHCP servers is that you set up only one DHCP pool and Yeah, that got me scratched my head. I'm not really sure why they said that We will be setting up option 150 and we will be using two different pools this this right here telling the phones Where to download their firmware from and the grand streams. We're not gonna use that Right now we might later, but we're gonna go ahead and provision it anyway Just to have it kind of like a bookmark and this doesn't have to be the router by the way It can be the you know, Linux box right on your network So anyway, that's that's kind of what that is and I'm not sure I says there's only gonna be one pool. So Moving on so in the last video We provisioned our Los Angeles Router and we're using my laptop connected to port seven right here To configure the ethernet switch and all that's fine and dandy for Configuring ethernet switch and and so and changing the phones and that sort of thing. You'll see in the previous video Yeah, we don't want to continue doing that So we want to disconnect this guy and I think what I'm gonna do if you're watching my older videos We're gonna move our uplink to port seven and I'm gonna make This port right here. This will be our monitoring port Let's see. Do I have a picture of that now? It'll be for monitoring. So I'm just gonna put Maybe I should put mirroring Okay, I think most people understand that All right, and this guy is gonna go he's gonna be hanging off the ether somewhere over here Oh, sorry probably be over here, right and he'll be hanging off this guy. We'll just leave him right there for now so alright and I've already physically moved this cable. I did this before the video I didn't want to bore everyone with that and yes, I can still SSH to this guy so I went ahead and After I looked at this for a second I was like, yeah, you know, I should probably throw the management network in there And I just added this little cloud right here and showed my laptop hanging off of it and and Now it's connecting to the Los Angeles and this the switch oh this switch down here As you notice, I don't have a connection going to This E-switch this sorry this SMC ethernet switch, okay? So that means we're gonna have to set up some routing from my laptop Okay, so let's get to the nuts and bolts of this step. Shall we let's see first We need to I've already SSHed into the into the router Trying to figure out where to put this. Okay, so we're going to go to the router config T and We're gonna create enter the command IP DHCP pool name so okay config T And I'll just Copy and paste this Copy paste. All right, so we're gonna have a DHCP pool with a name of voice Okay, so enter the command Nor to specify the IP address of the DHCP address pool and options mask Okay, so this is gonna be the pool of IP addresses you want the router the 3845 to Divvy out to the To the clients, right? So it should be the phones and and other devices down here, right? Well, it'll be the phones Let's just leave it at that. It's not confuse it Okay, so we're not gonna use their Their network we have our own so it's a network 192.168 13 Zero to 255.255.255.0. Okay, so it's basically It's gonna DHCP everything on that network. He kind of following what I'm saying So so everything from this port down is Going to have this DHCP Pool called voice for all the phones. Okay, and we're gonna Divvy out these these 13 Dot zero IP addresses, right? That's all we're telling it now. It's gonna say we says option 150 IP address in order to specify the TFTP server IP address From which the Cisco Unified IP phones will and and this is basically saying 150 as an option and DHCP and you can google the The spec if you want more information on it. There's a there's a bunch of other There's a bunch of options and we're gonna probably add some later But anyway 150 is telling it where the where the phones can go get its software load so I'm gonna say option 150 and Its IP is going to be 192.168.13.1. Basically. It's the 30 or 3845, right? and I think it might Default to that, but we're just gonna follow along with With this Example with this document, right? I don't want to veer too far off it So and then the the default router and this this might sound weird This is kind of like another option. This is basically telling the phones what its default router is It's so we're not telling the router what it's we're telling the phones what their default router is and You would think it would be obvious And it might be they might automatically default to it. We're gonna make sure they know what it is, right? So it's a default Router is 192.168.13.1 right and They say they say put end in there. I just do control C and then write Okay, oh, I forgot to do the term mon on it term on that's for monitoring the console messages Okay, so now that we've got that done I I looked over there and noticed that the that the phones already had IP addresses So we can do a show IP DHCP Binding and You can see that all three of our phones have got IP addresses and So that's good, right? But if you notice, yeah, so we're using 13.41 it knew better than to use 13.1 so and And this guy right here the 38 40 45 might not he might not try to use 30 41 But but just in case we were going to add another DHCP command That's not in this document right here Okay, and and that's to that's the command to exclude so we're gonna do a config t and we're gonna say IP DHCP and Then question mark and we want to exclude some addresses. All right Let's see And you can do a question mark again if you want to look at the format, but what it is As you give it the Okay, I want to exclude from here to here. So you give it a range basically So we're gonna say I want to exclude 192.168 dot 13 dot One through 192.168 dot 13 dot 100 So the first hundred IP addresses we don't we want we want to leave those so DHCP doesn't serve those out Okay, and I'll hit enter. I'll see and write that I'm gonna look at our config here real quick show config and So there we go network option. Oh here they are. Here's our excluded IP addresses so so our voice I Guess all the pools for that matter if we create another pool in the same range Which we will are going to do here in a little bit It knows not to use these first hundred IP addresses Which is good because now we know that it won't try to stomp on this IP address or anything else that we decide to provision That is under IP address a hundred and below. Okay, so So, yeah, this is looking this is looking pretty good, right? If you want to see what's going on with the server other than that other command you can do a make sure to do a term on and then just do a debug Make sure you put IP because there is a debug DHCP, but that is different than the debug IP DHCP and then you hit a question mark and say server and Then events. Okay, and this and hold on I'll go reboot one of the phones And you can see what your DHCP server is doing Okay, so it saw the phone and it gave it an IP address Okay, and there's more debug messages. We might get to it here in a second So I'm going to go ahead and turn this debug off. So no debug all And and look at the next step so it says very last thing on here It says repeat the same procedure in order to create the local DHCP servers for the data addresses, right? For the range of the data addresses and you're probably know what's going to happen next if we tried Let's do a show config So if we if we do a config T And then IP DHCP pool Data Okay, this will be for our computers and that sort of thing And then we try giving it the exact same network. I Think you know what's going to happen That's not going to work and it makes sense right so you don't want to have competing DHCP server is running and if you look the way look at the way our Drawing is you can see so we've got the SMC switch is is handling all the phones and Then our 3750 Cisco 3750 is going to be handling all our data right and The stuff that's grayed out hasn't been provisioned yet. So you just ignore whatever is grayed out This this switch and this Zena compact do actually exist, but they're not doing anything. Obviously, there's no wires connecting Yeah, so now we have to split up our IP addresses Okay, so the first thing we're going to do is I've got VLAN one with a default IP address of 13.1 So on this guy right here. He's on VLAN one Okay, so I I was sitting there and I kind of stopped the video for a second because I was I'm trying to think on I Don't want to make this DHCP video How to subnet your network? Video because I can get quite complicated. I was just about to pull out my My little cheat sheet here. This is a little Excel spreadsheet. I made Probably back in video one Or two or something like that where I I was showing out a subnet or make Subnets out of a class D subnet. So sub subnets if you will they've got a name I'd escape me around top my head. But anyway, I Want to keep this video simple and and that would not be simple So what I think I'm gonna do is I'm gonna just so one through 128 is gonna live on this guy right here and then on the data We'll do 129 through 256. I believe that's right. Maybe it's oh sorry. It's a zero or One through 127 and then 128 through 255. I think that's how it works So yeah, I'm even gonna need my calculator for that So we want 128 so it's okay. Yeah, so it's 128 through 255 All right, and then zero to 127 and hopefully I don't lose everyone right now right now So, okay back to our router. I'm gonna I'm going to control C out of this guy. Oops control C First let's go configure this guy So, okay, so config T And we want to do the voice DCP server and we're gonna change his his network From network from Oh, so from 13.0. That's that's right. Oh, yeah, actually. That's a 192.168 13.0, but we're going to change his subnet mask to 255 since we're starting at zero and we're going to to I'm sorry to 128 Where is it? All right Right here. Well, we're going to 127, but the subnet mask will be 128 I'll just show you that might make more sense in my confusing Excel spreadsheet So it's a 255.255.255.128 I guess we got a delete rate. I don't know. I might have to delete the whole thing out. I Let's see maybe if I can just do a no. Oh There we go. Oh Much better Okay, we'll do a control C in a right Okay And we'll do a show config All right excellent So we just changed our our pool of IP addresses. Okay? So let's go back and configure this guy Big T Copy and paste we're going to the data. So now what we want to do is we want to do network 192.168.13.128 With the subnet mask of 255.255.255.128. I do believe that's right. This is why I keep my little I Made this from scratch. Well, if you go watch video now But this is it's very helpless. You don't make any mistakes or you're trying to provision stuff. Yeah, so it's 128 so that's going to be our wire address with a subnet mask of 128 and So it should work. Yes, it does and this this goes good it will It will It'll fess that. Yeah, if you try doing something wrong usually We don't need the option 150 for our computer network So we're gonna Eliminate that but we are gonna set the default router Default router is going to be 192.168.1.129 right And if we look at our Excel spreadsheet, that's the first one after the wire address Which is you can make it any of them, but it's very common to use the the first one after the wire address, right? We're gonna do a control C in a right And show config And there you have it. So now we have both our IP DHCP pool for our voice and our data and They're on and they're gonna be serving two different networks, which in the next video And we will I might go ahead and do a one cue trunking on this dot one cue trunking But I don't know I'll think about it in the in the real life. We're gonna hook this up But just to do dot one cue trunking example, which is I think which is in the what they talk about here We'll do that, but it will be the next video and one last thing I should point out As we need to to fix our excluded addresses All right, so we're gonna do a config T and we're gonna say no to this guy right here All right and Now we're gonna add we're gonna say IP DHCP Exclude oops exclude and we're gonna make two of them this time So what the first one's gonna be 192 dot 168 dot 13 dot one through 192 dot 168 13 dot let's see Let's keep it simple. We'll say um I don't know. Maybe It's a 128 size Maybe 16 for network equipment. That should be big enough So one through 16 One's not being included. So it'd be two through 16 basically. Oh actually that's not gonna cover our That's not gonna cover our ethernet switches, so so how about we make it through we'll say 45 That's a non and I don't normally do that even though 100 was kind of bizarre But it'll least cover this dot 41 right here. That's leaving a lot of static IP addresses in our pool That's okay, and let's do the next one IP DHCP Exclude whoops exclude 192.168 dot One 13 dot 129 through I don't know what's what's 16 on that No, we'll just pull up my little handy. Yeah, this little spreadsheet does come in handy So 16 IP addresses To and like I said, they don't have to be exact network addresses I just do this just to make it nice and neat. I should probably done that on the other side as well Okay, so we're just gonna go to 143 So 192.168 dot 13 dot 143. All right right And now we do a show config Okay, so now we have our excluded IP addresses for the two different pools This one's doing a whole bunch of them and this one's only doing 16 of them Okay, so it's the first 16 and the data pool and it's the first of whatever 40 something and the voice pool Okay, and last but not least I wanted to show a couple other Commands that you might use one is you can tell the equipment that's that's being served by the DHCP server what its domain name is and can also tell it which DNS server to use in this case, we're just pointing it straight at the 3845 our Los Angeles router will set that that DNS server up later I'm I'm sure I haven't read through this whole document, but I'm guessing they might maybe not if not, I've I've made a video on how to do this and Yeah, you can just set them set it up in both both pools if you want and if you do a question mark You probably find all kinds of stuff that you'll find interesting But like I said, I don't want to veer too far from our document These these these are very common. So I Thought I would share them with you if you want to add them to your config and That's it. We're done. I'll update the drawing and I'll see you for the next one Configuring the interfaces where it looks like we're gonna do some dot one cue trunking