Lab 7 - VoIP

Activity 1 - Vlan setup

Note from Prof:

Use pc 1 as your client pc, use pc2 as your monitor

Step 1 - Activate switch

Grab some cables
turn on your rack
Connect switch D to pc console 1
Open putty
Select serial
Select serial on the left, turn flow control off
Connect!
- No - do not enter initial configuration dialog
- Yes - terminate autoinstall
- enable - give yourself superpowers
- config t - activate config mode
Use the “Command Cheat Sheet”
- “Configure the VLans” section configures the VLans
- “Configure monitoring” sets up monitoring

Activity 2 - Activate Router

Part 1 - route between VLans

Router on a stick, while cool, is not what we’ll be using
Use a cable to attach router B console to PC2
putty, serial, no flow control, connect
- No initial config dialog
enable, then config t
Follow “Command Cheat Sheets - Router interface configuration”
- interface fa0/0
  - vlan 101
- interface fa0/1
  - vlan 102

Part 2 - Make the router a dhcp server

enter config terminal mode
Follow “Command cheat sheets - dhcp router config”
- voice vlan
  - network defines the network
  - option 150 defines the tftp server address - in this case, the router.
  - default router sets the gateway of dhcp clients
- data vlan
  - same as above minus option 150

Part 3 - verify file presence

use exit to leave config t or whatever, get back to enable level
dir

Activity 3 - Test Connectivity

Step 1 - Can we do the ping?

Use more cables, lol
- port 1 - Voice monitor
- port 2 - PC1
- ports 3 through 5 - Voice vlan, nothing yet
- port 6 - Voice vlan connection to router interface fa0/0
- port 7 - monitor output
- port 8 - PC2, for now
- ports 6, 10, 11 - data vlan, nothing yet
- port 12 - data vlan connection to router fa0/1
On each PC
- Open command prompt with admin
- run ipconfig /renew
- Ping from pc1 to pc2 (101.1 to 102.1)
If ping works, continue
- Unplug PCs from switch (Switch ports 2 and 8)

Step 2 - spanning-tree portfast

I didn’t need to do this.

Step 3 - config phone lines

Go get two phones from the cage
- The one with the lower number yellow sticker will be called phone 1
- Phone 1 SW port to switch port 1
- Phone 2 SW port to switch port 2
Once they boot, settings -> network, scroll down to MAC
Write the MACS down
unplug the phones.
- Otherwise they steal registration slots from each other.
Run: ip tftp source-interface fa0/1
- This seems very wrong, and I don’t know why it works, but it does

“Command cheat sheets - Config the lines for the phones” has enough errors with it that I’m re-writing the instructions here.

Yes, you have 7960s instead of 7961s. This still works. I tried it with 7960 and it didn’t.

Obviously, replace the MACs in the instructions with the MACs you wrote down earlier.

enable
config t

telephony-service
max-ephones 8
max-dn 8
ip source-address 192.168.101.254 port 2000
load 7961 term41.7-0-3-05
max-conferences 8 gain -6
transfer-system full-consult
create cnf-files version-stamp jan 01 2002 00:00:00

ephone-dn 1 dual-line
number 1001

ephone-dn 2 dual-line
number 1002

ephone 1
mac-address 001B.D584.60E1 // replace
button 1:2

ephone 2
mac-address 001B.D584.603F // replace
button 1:1

Hit CTRL+Z to apply changes
Plug the phones back in and hope for the best

How to get the signoffs

These will be out of order - that’s okay.

2B

Take a screenshot of PuTTY when the router says the phones are registered.

2Signoff

Show an instructor that you can call the other phone

2C

Run a cable from switch output 7 to PC2 NIC. Start wireshark on PC2.

Call from one phone to the other.

I had issues on attempt 1.

Below here are misc notes I took while troubleshooting.

Show Run on the router should reveal this:

telephony-service
 load 7961 term41.7-0-3-0S
 max-ephones 8
 max-dn 8
 ip source-address 192.168.101.254 port 2000
 create cnf-files version-stamp jan 01 2002 00:00:00
 max-conferences 8 gain -6
 transfer-system full-consult

TROUBLESHOOTING

Phone	MAC
1	001B.D584.60E1
2	001B.D584.603F

TERM41.7-0-3-05.loads
term41.default.loads
term61.default.loads
Jar41.2-9-2-26.sbn
cnu41.2-7-6-26.sbn
CVM41.2-0-2-26.sbn
tried tftp source 0/1, which sounds wrong
oh no
“host not found”, says the phones, as they sit there sadly.
They have IPs via dhcp, so that’s good at least.
Why cannot contact tftp server? Why cannot contact CME?
IP dhcp pool is correct
- Phones are getting ip addresses
Option 150 is set
- phones are getting tftp server address
tftp-server [file]
- Sets the file the tftp server is pushing
- Phones load, I think this works?
- Prof helping selected random file, idk which file to use?
- Why is ip tftp source-address set to the data network? There’s nothing there
telephony-service -

load 7961 [file] in case I messed up in loading 7960

Lucas goes to switch config Lucas re-runs my vlan commands