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Our next task 15.3 is for TFTP
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and we’re instructed to configure Branch 2 Router 3 as a TFTP server
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to serve up all SIP and Skinny load files
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necessary for the locally connected IP phones to upgrade to their proper load.
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Now, if you’re using your own phones with either your own rack
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or even our INE racks with your own hardware phones, I should say,
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not remotely controlling ours and not using cell phones,
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but if you’re using a hardware phone through VPN,
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use the VPN that we allow in network extension mode to be connected to us
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then you may need to specify different files for our configuration.
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0:00:58
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We’re synchronized to ourselves. We’ll eventually synchronize to the PSTN.
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For our configuration, we did show CDP neighbor on
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on Branch 2 Switch 2, the switch connected to Branch 2.
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Now, we’re gonna show CDP neighbor details for Fast 0/10.
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Actually, I need to say details after report number.
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And we see that we have a MAC address her for SEP.
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The platform is a 7961 IP phone.
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Here’s our next phone again as 7961
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and our third phone again all three 7961.
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So, that’s the load files that we need to use.
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So, I'm sure CDP neighbor would be one of the ways.
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Looking at them right in front of you in the real lab
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would be another way that we could tell exactly what type of phone we have.
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Here, we’re finally synchronized with the PSTN.
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So, that completed that last task.
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Let’s clear that. That's good.
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So, what we need to do is look on the flash
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and we’re gonna type to include 7961.
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And we see that we have a number of files in folders 7941-7961-Skinny folder.
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We've got a number of files and the 7941-7961-SIP folder.
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We've got a number of files.
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So, all the files necessary for each of those.
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The way that phones asked for their files.
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If we do a debug TFTP event,
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and since it’s really not going to help too much just yet because,
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1. The phones are already running their proper load
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so we’re not gonna actually see them request these files.
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Unfortunately, because they’ve already upgraded to the proper load files
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but, 2. Because we haven’t actually set up the Skinny or SIP CME servers yet
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to tell the phone which load files to actually request even the default.
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So, we’re not gonna actually see anything if we do a debug TFTP events just yet.
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We’ll see a phone trying to connect and get,
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we could go ahead and see if a phone trying to.
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Let’s just do this debug TFTP events.
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We will see the phone trying to connect and get
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information about this SIP and Skinny server.
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So, trying to download their SEP.
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First, we'll download their CTL MAC if it’s there.
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Then we’ll try to download SEP MAC address file if it’s present.
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Then, depending on it if it was just rebooted or not
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May go through zip MAC address .cnf
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but eventually it will get to xml default.cnf.xml.
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Make sure we’re still term on here, sure we are.
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So, debug TFTP events.
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We should see fairly soon these phones attempting to contact CUCM.
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I’ll just go ahead and reset one of them.
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Exploit the process a little bit,
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and in the meantime, what we’ll go ahead and say is that
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basically, these phones are gonna be requesting files unless they’re otherwise told so.
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unless they’re otherwise told so.
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They’re gonna be requesting files from the root directory.
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So, they’re gonna be requesting files from the TFTP IP address of 177.1.254.3
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that we instructed them to via DHCP and then the file name.
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They are not going to look in the folder structure
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of the folders that contain these files
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in the flash formatted type3 flash memory card.
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So, because they’re not going to request the files in the subfolders,
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we have to make these files look, we can do two things, we could either
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do away with the organization which is really nice,
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and essentially copy all of these files from their nicely categorized folders
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down to the root level with the whole reason we have folders
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is to keep things nice and organized and compact,
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or we could simply serve these files up as the full file name
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but then alias them and make them look like they’re coming from the root pass.
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So, just in the same way if you ever configured a web server.
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You may have your folders, your files and if it’s a Linux server maybe
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maybe /r/documents or /r/httpd/documents
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or maybe if it’s a windows box, maybe C\program files.
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I don’t know. I don't even remember windows very well.
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\www.root or www.document or whatever it is that your path is.
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But the web server when someone requests a file from you,
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they just request it from http, the IP address of your box
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or domain name that gets result to an IP/index.html.
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So, at the root level as it appears to the web server, same thing with TFTP.
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So, what we’re gonna need to do
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is I’m gonna go ahead and bring up the Text Edit window
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and what we would normally do in the lab is copy all these out
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if they’re not in the root directory.
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Get rid of all these directory names and I’m not gonna bore you.
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I know I just got rid of the whole line.
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I’m not gonna bore you with doing this to every single one
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and adding what we need to every single one.
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And I've already got it created.
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But the point is, that you would have to if they were in a subdirectory,
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you would have to sit here and come along
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and grab all of these file names, get rid of the beginning, the size information
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and you’d have to change them to just having the file names, space,
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eyword alias, space and then just the file name itself.
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0:08:04
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Then, you’re gonna flash: to the beginning and the command.
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So, TFTP server, jump in here. TFTP server, flash:,
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and the reason we’re not seeing any TFTP
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is we don’t have any TFTP server commands in here so far.
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0:08:21
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Let's just the jump out say show Run, Type 2 section, TFTP,
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Nothing. Show telephony service. It’s not enabled,
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Show voice registered global. Things are gonna get into here.
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It’s not really enabled right now. So,
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and then what is gonna be the names of the files.
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So, it’s really flash:, here’s the name of the file,
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just get this up here and we could just say Enter or we can give it an Alias.
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So, we wanna give it an Alias and we can even lock it down
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to who’s allowed to request the file with ACLs
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and then the file Alias which is just the actual file name.
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This makes the file look like it’s being served from the root directory.
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0:08:53
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Config T, TFTP server and then where we gonna pull from flash:
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Even it’s not actually being served from the root directory,
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It’s being served from, and now that we turned the TFTP server on,
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0:09:43
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Now, all of the sudden we’re seeing the debug information as I mentioned.
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0:09:46
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So, here’s the phone 1A93 with that last SIP phone.
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It’s looking for its configuration file.
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It doesn’t find it so it looks for XML default.cnf.xml.
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It doesn’t find it. It’s also looking for its soft key at the same time.
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But we don’t see found. We just see that there is someone looking.
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What we’re gonna do, is we’re just gonna ahead and use what I’ve already configured
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but then again in the lab, you would have to do some text editing.
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We’re just gonna go and paste all these in here.
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Now, this isn’t gonna give the phones what they need to grab their configuration.
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It simply gonna give the phones what they need to download
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0:10:29
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and upgrade any of their load files for both Skinny and for SIP phones.
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