Voice VLAN with Nortel

I am using 3750 stacks in the access closet with the floor VLANs routed through a 4500. I am trying to determine the best way to get the Nortel IP phone to attach to the voice VLAN and have the internal port default to whatever the floor VLAN is. I am using Microsoft DHCP and I will not initialy trust the port but use a policy to set the trusts. Does anyone use Nortel and what do you believe is the best way to set this? Are there any documents anyone may be aware of to lead me in the right direction?
Thanks

Take a look at the following post.
http://forum.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Unified%20Communications%20and%20Video&topic=IP%20Telephony&CommCmd=MB%3Fcmd%3Ddisplay_location%26location%3D.1ddbd67a
Hope this helps. If so, please rate the post.
Brandon

Similar Messages

Cisco voice vlans w/ nortel VOIP system

Hello everyone,
I am going to segment a network with a Nortel VOIP system. Right now, the network is completely flat with PCs plugged into the back of the nortel phones. I would like to set up a voice vlan for the nortel phones but am not sure if voice vlans will work w/ non-cisco phones (cdp). Please provide me some insight if you can. Thanks!

If your are Using Recent Cisco Switches it is quite easy.
Using 4006 SUP III core switches or 3560 PSE's should be okay.
If you have Nortel Phase II phones they can also be powered by the 802.3 cisco switches with no probs.
Anyway set the switchport mode to switchport voice vlan. Set spanning tree portfast and configure qos as you see fit on the port. Configure the voice vlan on the switch eg switchport voice vlan 111. You may need to configure the port to switchport mode dynamic desriable as well. Some older switches may have problems but you can enable trunking to cheat and then a default vlan for the pc on the switchport
As regards to the phones when the phone reboots and you enter the configuration mode via flipping the 4 soft keys. You should then see the vlan option and configure the same vlan number on the phone as the cisco switch eg 111.
The phone should then register again without any problems. All i2002/i2004 firmware for last 2 years has the vlan option. I looked after about 400 nortel phones all on cisco switches of various ages with only minor setting up issues.
Best of luck
Simon

Voice VLANs with Multiple IP Phone Systems

We currently have a legacy TDM ACD system used by the Call Centre running alongside CUCM 8.5 which is used by back office and admin staff.
When we implemented the Call Manager we configured all our access ports with the Voice VLAN to make any office moves and changes straight forward, regardless of whether or not the position would have a Cisco phone i.e. a cisco phone could be plugged into any floor port throughout the building and it would register.
Currently I am in the planning stages of replacing the legacy ACD system with Avaya Aura which will be running side by side with CUCM. My concern is that every time there are office moves, the access ports are going to have to be reconfigured to the Voice VLAN of the relevant system depending on which type of phone is at that desk.
Has anyone had similar experiences and found a solution?
Not ideal I presume, but was wondering if we could use the same Voice VLAN for both systems?

It's just a VLAN. Don't sweat it, stick them all in the same one. Nothing will explode.
Each phone system will have it's own way of locating the call processor.
CUCM = DHCP Option 150
Mitel = Some other DHCP option (128-130, and some others)
Avaya = DHCP option 176
etc...
So you can set all these on your scope, and each phone type will find it's server...
Aaron

Voice VLAN with SRW224G4P

Hi all,
I have been trying to config a voice vlan into this switchs for the last 3 hours and for me this is impossible... I know how to do in a IOS switch but with this switchs is a nightmare...
I have this topology,
PC ---- IP phone ----- SW1 SRW224G4P -------- SWCORE SRW2024 --------- Router 2921 CME
I have this config in my router,
interface GigabitEthernet0/0
no ip address
duplex auto
speed auto
interface GigabitEthernet0/0.1
description LAN
encapsulation dot1Q 1 native
ip address 192.168.5.95 255.255.255.0
ip virtual-reassembly in
interface GigabitEthernet0/0.100
description Voice VLAN
encapsulation dot1Q 100
ip address 192.168.251.1 255.255.255.0
ip virtual-reassembly in
SW1 has created the VLAN 100 and enabled as VOICE VLAN
The first 3 octes of the mac of my phone is inserted into Telephony OUI Table
The Auto Voice VLAN Membership is enabled in the port where phone is attached.
The port that is conected to SWCORE has the vlan 100 configured as tagged.
SWCORE has created the VLAN 100 and enabled as VOICE VLAN
The port that is conected to SW1 has the vlan 100 configured as tagged.
The port that is conected to router CME has the vlan 100 configured as tagged.
If I config other port into SWCORE with VLAN 100 tagged I can ping from CME to that host.
Could be the problem a vlan propagation error?
Somebody could help me? I am desperate...
Thank you in advance.

Hi David,
Thank you for the purchase of the switch.
.Like anything, even riding a bike, the switch is actually very easy to configure, if you have a little bit of practice on it..
You mentioned you are using the " Telephony OUI Table" i guess you have a SF300-24P or ordering p/n SRW224G4P-K9-NA. Please be specific with the switch models you are using.
Are you using the older SRW series or the refreshed SRWxxx-K9 (300 series) switch in the core?
Firstly, make sure you are using version 1.1.0.73 of the switch firmware. Do that change now or verify that 1.1.0.73 is the active image on the switch.
The switch has two areas for storing firmware images. It stores the new firmware in the unused image area. Check the administration guide for how to upgrade firmware and select new firmware for the next reboot.
CDP is enabled on the switch when you use the new software, it was not there with older firmware, hence my insistance at upgrading firmware.
( Personally i would prefer you to have a catalyst switch for your ISRG2 CME application, for tech support purposes. But this is the land of the free..)
I found the following when I added my SG300-28P to a VLAN aware UC500.
The UC500 was advertising vlan100 as a voice vlan, configured that by Cisco Configuration Assistant, you might try CCP on your ISR.
I had a IP phone plugged into switch port G7 and a uplink to my UC500 via port Gig27.
The following in blue is a screen copy from my 300 series switch CLI interface.
You will note the switch automatically populated both VLAN and port information, the only command I added was "no passwords complexity enable," and some usernames, which removed from the screen capture below.
the switch basically configured itself.
------------------ show system ------------------
System Description:                       28-port Gigabit PoE Managed Switch
System Up Time (days,hour:min:sec):       00,00:12:04
System Contact:
System Name:                              switch4cf17c
System Location:
System MAC Address:                       d0:d0:fd:4c:f1:7c
System Object ID:                         1.3.6.1.4.1.9.6.1.83.28.2
Fans Status:                              OK
------------------ show version ------------------
SW version   1.1.0.73 ( date 19-Jun-2011 time 18:10:49 )
Boot version 1.0.0.4 ( date 08-Apr-2010 time 16:37:57 )
HW version    V01
Gateway IP Address        Activity status       Type
192.168.10.1            Active                  dhcp
    IP Address         I/F       Type       Status
192.168.10.17/24    vlan 1    DHCP        Valid
------------------ show ipv6 interface ------------------
IPv6 is disabled on all interfaces
------------------ show running-config ------------------
interface gigabitethernet7
storm-control broadcast level 10
exit
interface gigabitethernet7
storm-control include-multicast
exit
interface gi27
spanning-tree link-type point-to-point
exit
vlan database
vlan 100
exit
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 00096e Avaya___________________
voice vlan oui-table add 000fe2 H3C_Aolynk______________
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00d01e Pingtel_phone___________
voice vlan oui-table add 00e075 Polycom/Veritel_phone___
voice vlan oui-table add 00e0bb 3Com_phone______________
hostname switch4cf17c
no passwords complexity enable
no snmp-server server
interface gigabitethernet7
macro description ip_phone_desktop
exit
interface gigabitethernet27
macro description "switch | no_switch | switch"
exit
interface gigabitethernet7
!next command is internal.
macro auto smartport dynamic_type ip_phone_desktop
switchport trunk allowed vlan add 100
exit
interface gigabitethernet27
!next command is internal.
macro auto smartport dynamic_type switch
switchport trunk allowed vlan add 100
exit
switch4cf17c#sh cdp nei
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
                  S - Switch, H - Host, I - IGMP, r - Repeater, P - VoIP Phone
                  M - Remotely-Managed Device, C - CAST Phone Port,
                  W - Two-Port MAC Relay
Device ID        Local      Adv Time To Capability   Platform     Port ID
                   Interface Ver. Live
SEP503De50F133A      gi7      2     158      H P     CISCO IP        eth0
                                                     Phone
                                                     SPA525G2
68bdab0fdcfd        gi27      2     169      S I     Cisco SG         gi9
                                                     300-10P
                                                                                           (PID:SRW2008P-K9)-VSD
switch4cf17c#sh vlan
Vlan       Name                   Ports                Type     Authorization
1           1                gi1-28,Po1-8           Default      Required
100         100                 gi7,gi27            permanent    Required
Switch automatically figures which ports should be tagged into VLAN 100.
I did not tell the switch it was connected to VLAN100. I did not add vlan100 to the VLAN database.
So get the ISR router to advertise VLAN100 as a voice vlan.
regards Dave

51 APs on voice vlan with 110 802.11 Handsets and 300 VoIP handsets?

There are 51 APs with 110 Symbol 802.11 voip handsets, along with 400+ Mitel VoIP Handsets on one vlan..using mask 255.255.240.0 should I be asking if this is excessive multicast traffic ?
Anyone used the IAPP with Aeronet? Any drawbacks, feedback? Should the APs/802.11 VoIP Phones be on their own vlan rather than the voice vlan?

Jason,
Let me answer your question with another question - RTP streams from your phones would be unicast, unless you were using applications like multicast paging or multicast MOH. Are there any of these applications present?
For seamless roaming, you will want the APs to be located on the same VLAN and use the same SSIDs and addressing scheme across your wireless infrastructure. You could separate it from your voice VLAN for segmentation purposes, so long as DHCP services and QoS is present on your APs and distribution switches on the wireless VLAN.
A quick estimation of the traffic involved is 7.04Mb/s if every phone was being used simultaneously with a G.711 codec. Bandwidth would generally not be an issue, but latency and jitter are your priorities. Depending on how your wireless network is laid out, you shouldn't have more then 8-12 phones associated to a single AP or jitter, latency and retransmissions will become an issue.
Hope this helps.
Pat

SG-300 28P switches problem with VLAN Data and Voice, working all the time as Voice VLAN

Hi Everyone,
Thank you very much for your help in advance. I’m pulling my hair to fix the problem.
I just got the new SG-300 28P switches. My Bios ordered for me. I did not know how it runs until now... not an IOS based. I really do not know how to configure it.
I have 2 VLAN are Data and Voice.
-          Data VLAN ID is 2 IP 192.168.2.X/255.255.255.0
-          Voice VLAN ID is 200 IP 192.168.22.X/255.255.255.0
-          I created two vlans, in switch, Data and Voice.
-          On the port number 28, it is trunk by default, so I add Data vlan ID 2 tagged.
-          On the port number 26, it is trunk by default, so I add Voice vlan ID 200 tagged.
-          On the port number 27, I add Data vlan ID 2 tagged for Data vlan out.
-          Port settings No.1
I set it up as Trunk with Data vlan 2 untagged, and 200 Tagged (voice vlan). I plugged in a phone with a pc attached. But the PC will get to the vlan 200 to get the DHCP address, but no from vlan 2. The Phone works with correct vlan ip.
-          Port settings No.2
Trunk with vlan 1UP, 2T, and 200T. The phone is even worse. Would never pick up any IP from DHCP.
-          Port settings No.3
Access with 200U...of course the phone will work... and the PC could not get to its own vlan. Instead, the PC got an ip from the voice vlan. Not from VLAN 2.
I have Linksys phone I’m not sure if this help.
For more information I setup in switch,
            - enable voice vlan
- set the port on auto voice vlan
- enable LLDP-MED globally
- create a network policy to assign VLAN 200
- assign this network policy to the port the phone is connected to.
I hope this information help to help me to setup Data and Voice vlans, to plug the phone to work with vlan Voice 200 (IP rang 192.168.22.X), from phone to Pc and pc work as Data vlan 2 (IP rang 192.168.2.X).

I just got done setting up voice VLANs on an SF 300-24P and verified working. This was working with Cisco 7900 series phones connected to a Cisco UC setup.
Here's my sample config.
Note that I edited this by hand before posting, so doing a flat out tftp restore probably won't work. However, this should give you a clue. Also, don't take this as 100% accurate or correct. I've only been working with these things for about a week, though I've worked with the older Linksys SRW switches for a couple of years. I'm a CCNP/CCDP.
VLAN 199 is my management VLAN and is the native VLAN on 802.1q trunks.
VLAN 149 is the data/computer VLAN here.
VLAN 111 is the voice/phone VLAN here.
VLAN 107 does nothing.
interface range ethernet e(1-24)
port storm-control broadcast enable
exit
interface ethernet e1
port storm-control include-multicast
exit
interface ethernet e2
port storm-control include-multicast
exit
interface ethernet e3
port storm-control include-multicast
exit
interface ethernet e4
port storm-control include-multicast
exit
interface ethernet e5
port storm-control include-multicast
exit
interface ethernet e6
port storm-control include-multicast
exit
interface ethernet e7
port storm-control include-multicast
exit
interface ethernet e8
port storm-control include-multicast
exit
interface ethernet e9
port storm-control include-multicast
exit
interface ethernet e10
port storm-control include-multicast
exit
interface ethernet e11
port storm-control include-multicast
exit
interface ethernet e12
port storm-control include-multicast
exit
interface ethernet e13
port storm-control include-multicast
exit
interface ethernet e14
port storm-control include-multicast
exit
interface ethernet e15
port storm-control include-multicast
exit
interface ethernet e16
port storm-control include-multicast
exit
interface ethernet e17
port storm-control include-multicast
exit
interface ethernet e18
port storm-control include-multicast
exit
interface ethernet e19
port storm-control include-multicast
exit
interface ethernet e20
port storm-control include-multicast
exit
interface ethernet e21
port storm-control include-multicast
exit
interface ethernet e22
port storm-control include-multicast
exit
interface ethernet e23
port storm-control include-multicast
exit
interface ethernet e24
port storm-control include-multicast
exit
interface range ethernet g(1-4)
description "Uplink trunk"
exit
interface range ethernet g(1-4)
switchport default-vlan tagged
exit
interface range ethernet e(21-24)
switchport mode access
exit
vlan database
vlan 107,111,149,199
exit
interface range ethernet g(1-4)
switchport trunk allowed vlan add 107
exit
interface range ethernet e(21-24)
switchport access vlan 111
exit
interface range ethernet g(1-4)
switchport trunk allowed vlan add 111
exit
interface range ethernet e(1-20)
switchport trunk native vlan 149
exit
interface range ethernet g(1-4)
switchport trunk allowed vlan add 149
exit
interface range ethernet g(1-4)
switchport trunk native vlan 199
exit
voice vlan aging-timeout 5
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 00096e Avaya___________________
voice vlan oui-table add 000fe2 H3C_Aolynk______________
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00d01e Pingtel_phone___________
voice vlan oui-table add 00e075 Polycom/Veritel_phone___
voice vlan oui-table add 00e0bb 3Com_phone______________
voice vlan oui-table add 108ccf MyCiscoIPPhones1
voice vlan oui-table add 40f4ec MyCiscoIPPhones2
voice vlan oui-table add 8cb64f MyCiscoIPPhones3
voice vlan id 111
voice vlan cos 6 remark
interface ethernet e1
voice vlan enable
exit
interface ethernet e1
voice vlan cos mode all
exit
interface ethernet e2
voice vlan enable
exit
interface ethernet e2
voice vlan cos mode all
exit
interface ethernet e3
voice vlan enable
exit
interface ethernet e3
voice vlan cos mode all
exit
interface ethernet e4
voice vlan enable
exit
interface ethernet e4
voice vlan cos mode all
exit
interface ethernet e5
voice vlan enable
exit
interface ethernet e5
voice vlan cos mode all
exit
interface ethernet e6
voice vlan enable
exit
interface ethernet e6
voice vlan cos mode all
exit
interface ethernet e7
voice vlan enable
exit
interface ethernet e7
voice vlan cos mode all
exit
interface ethernet e8
voice vlan enable
exit
interface ethernet e8
voice vlan cos mode all
exit
interface ethernet e9
voice vlan enable
exit
interface ethernet e9
voice vlan cos mode all
exit
interface ethernet e10
voice vlan enable
exit
interface ethernet e10
voice vlan cos mode all
exit
interface ethernet e11
voice vlan enable
exit
interface ethernet e11
voice vlan cos mode all
exit
interface ethernet e12
voice vlan enable
exit
interface ethernet e12
voice vlan cos mode all
exit
interface ethernet e13
voice vlan enable
exit
interface ethernet e13
voice vlan cos mode all
exit
interface ethernet e14
voice vlan enable
exit
interface ethernet e14
voice vlan cos mode all
exit
interface ethernet e15
voice vlan enable
exit
interface ethernet e15
voice vlan cos mode all
exit
interface ethernet e16
voice vlan enable
exit
interface ethernet e16
voice vlan cos mode all
exit
interface ethernet e17
voice vlan enable
exit
interface ethernet e17
voice vlan cos mode all
exit
interface ethernet e18
voice vlan enable
exit
interface ethernet e18
voice vlan cos mode all
exit
interface ethernet e19
voice vlan enable
exit
interface ethernet e19
voice vlan cos mode all
exit
interface ethernet e20
voice vlan enable
exit
interface ethernet e20
voice vlan cos mode all
exit
interface ethernet e1
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e2
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e3
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e4
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e5
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e6
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e7
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e8
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e9
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e10
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e11
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e12
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e13
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e14
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e15
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e16
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e17
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e18
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e19
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e20
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e21
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e22
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e23
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e24
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet g1
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet g2
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet g3
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet g4
lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
exit
interface ethernet e1
lldp med notifications topology-change enable
exit
interface ethernet e2
lldp med notifications topology-change enable
exit
interface ethernet e3
lldp med notifications topology-change enable
exit
interface ethernet e4
lldp med notifications topology-change enable
exit
interface ethernet e5
lldp med notifications topology-change enable
exit
interface ethernet e6
lldp med notifications topology-change enable
exit
interface ethernet e7
lldp med notifications topology-change enable
exit
interface ethernet e8
lldp med notifications topology-change enable
exit
interface ethernet e9
lldp med notifications topology-change enable
exit
interface ethernet e10
lldp med notifications topology-change enable
exit
interface ethernet e11
lldp med notifications topology-change enable
exit
interface ethernet e12
lldp med notifications topology-change enable
exit
interface ethernet e13
lldp med notifications topology-change enable
exit
interface ethernet e14
lldp med notifications topology-change enable
exit
interface ethernet e15
lldp med notifications topology-change enable
exit
interface ethernet e16
lldp med notifications topology-change enable
exit
interface ethernet e17
lldp med notifications topology-change enable
exit
interface ethernet e18
lldp med notifications topology-change enable
exit
interface ethernet e19
lldp med notifications topology-change enable
exit
interface ethernet e20
lldp med notifications topology-change enable
exit
interface ethernet e21
lldp med notifications topology-change enable
exit
interface ethernet e22
lldp med notifications topology-change enable
exit
interface ethernet e1
lldp med enable network-policy poe-pse
exit
interface ethernet e2
lldp med enable network-policy poe-pse
exit
interface ethernet e3
lldp med enable network-policy poe-pse
exit
interface ethernet e4
lldp med enable network-policy poe-pse
exit
interface ethernet e5
lldp med enable network-policy poe-pse
exit
interface ethernet e6
lldp med enable network-policy poe-pse
exit
interface ethernet e7
lldp med enable network-policy poe-pse
exit
interface ethernet e8
lldp med enable network-policy poe-pse
exit
interface ethernet e9
lldp med enable network-policy poe-pse
exit
interface ethernet e10
lldp med enable network-policy poe-pse
exit
interface ethernet e11
lldp med enable network-policy poe-pse
exit
interface ethernet e12
lldp med enable network-policy poe-pse
exit
interface ethernet e13
lldp med enable network-policy poe-pse
exit
interface ethernet e14
lldp med enable network-policy poe-pse
exit
interface ethernet e15
lldp med enable network-policy poe-pse
exit
interface ethernet e16
lldp med enable network-policy poe-pse
exit
interface ethernet e17
lldp med enable network-policy poe-pse
exit
interface ethernet e18
lldp med enable network-policy poe-pse
exit
interface ethernet e19
lldp med enable network-policy poe-pse
exit
interface ethernet e20
lldp med enable network-policy poe-pse
exit
interface ethernet e21
lldp med enable network-policy poe-pse
exit
interface ethernet e22
lldp med enable network-policy poe-pse
exit
lldp med network-policy 1 voice vlan 111 vlan-type tagged
interface range ethernet e(1-22)
lldp med network-policy add 1
exit
interface vlan 199
ip address 199.16.30.77 255.255.255.0
exit
ip default-gateway 199.16.30.3
interface vlan 1
no ip address dhcp
exit
no bonjour enable
bonjour service enable csco-sb
bonjour service enable http
bonjour service enable https
bonjour service enable ssh
bonjour service enable telnet
hostname psw1
line console
exec-timeout 30
exit
line ssh
exec-timeout 30
exit
line telnet
exec-timeout 30
exit
management access-list Management1
permit ip-source 10.22.5.5 mask 255.255.255.0
exit
logging 199.16.31.33 severity debugging description mysysloghost
aaa authentication enable Console local
aaa authentication enable SSH tacacs local
aaa authentication enable Telnet local
ip http authentication tacacs local
ip https authentication tacacs local
aaa authentication login Console local
aaa authentication login SSH tacacs local
aaa authentication login Telnet local
line telnet
login authentication Telnet
enable authentication Telnet
password admin
exit
line ssh
login authentication SSH
enable authentication SSH
password admin
exit
line console
login authentication Console
enable authentication Console
password admin
exit
username admin password admin level 15
power inline usage-threshold 90
power inline traps enable
ip ssh server
snmp-server location in-the-closet
snmp-server contact [email protected]
ip http exec-timeout 30
ip https server
ip https exec-timeout 30
tacacs-server host 1.2.3.4 key spaceballz timeout 3 priority 10
clock timezone -7
clock source sntp
sntp unicast client enable
sntp unicast client poll
sntp server 199.16.30.1
sntp server 199.16.30.2
ip domain-name mydomain.com
ip name-server 199.16.5.12 199.16.5.13
ip telnet server

Potential Security Hole with 802.1x and Voice VLANs?

I have been looking at 802.1x and Voice VLANs and I can see what I think is a bit of a security hole.
If a user has no authentication details to gain access via 802.1x - i.e. they have not been given a User ID or the PC doesn't have a certificate etc. If they attach a PC to a switchport that is configured with a Voice VLAN (or disconnect an IP Phone and plug the PC direct into the switchport) they can easily see via packet sniffing the CDP packets that will contain the Voice VLAN ID. They can then easily create a Tagged Virtual NIC (via the NIC utilities or driver etc) with the Voice VLAN 802.1q Tag. Assuming DHCP is enabled for the Voice VLAN they will get assigned an IP address and have access to the IP network. I appreciate the VLAN can be locked down at the Layer-3 level with ACL's so any 'non-voice related' traffic is blocked but in this scenario the user has sucessfully bypassed 802.1x authentication and gain access to the network?
Has anyone done any research into this potential security hole?
Thanks
Andy

Thanks for the reply. To be honest we would normally deploy some or all of the measures you list but these don't around the issue of being able to easily bypass having to authenticate via 802.1x.
As I said I think this is a hole but don't see any solutions at the moment except 802.1x on the IP Phone, although at the moment you can't do this with Voice VLANs?
Andy

Silent Monitor and Call record with voice vlan

We are pretty new to CCX, and want to get silent monitor and call recording working. I've read a bunch of troubleshooting docs, and a bunch of the discussions here, but I am still unable to get it to work the way that I want.
Heres the setup. The phones are all set to the recommended settings, and the agent pc is plugged into the phone. The data vlan is 111 and the voice vlan is 222. When I run the nicq prog on the agent pc, it can not find the phone, but I can enter the ip in , and it sees the phone. The supervisor laptop can not monitor or record.
If I change the voice vlan to 111, nicq still can not find the phone, but the supervisor can record and monitor with no problem. Is is an issue with 802.1q and perhaps my nics do not support it?
CCX Ver:
8.5.1.11004-25

Hi
It could be, but it's pretty rare.
Have you enabled 'PC Port Voice VLAN Access' and 'SPAN to PC Port' on the phone?
Have you tried alternate PCs/laptops on the back of that phone?
Aaron

Voice VLAN config with multiple IP Phone systems

We currently have a legacy TDM ACD system used by the Call Centre running alongside CUCM 8.5 which is used by back office and admin staff.
When we implemented the Call Manager we configured all our access ports with the Voice VLAN to make any office moves and changes straight forward, regardless of whether or not the position would have a Cisco phone i.e. a cisco phone could be plugged into any floor port throughout the building and it would register.
Currently I am in the planning stages of replacing the legacy ACD system with Avaya Aura which will be running side by side with CUCM. My concern is that every time there are office moves, the access ports are going to have to be reconfigured to the Voice VLAN of the relevant system depending on which type of phone is at that desk.
Has anyone had similar experiences and found a solution?
Not ideal I presume, but was wondering if we could use the same Voice VLAN for both systems?

It's just a VLAN. Don't sweat it, stick them all in the same one. Nothing will explode.
Each phone system will have it's own way of locating the call processor.
CUCM = DHCP Option 150
Mitel = Some other DHCP option (128-130, and some others)
Avaya = DHCP option 176
etc...
So you can set all these on your scope, and each phone type will find it's server...
Aaron

Cat 3750 with Voice VLAN and Dynamic VLANs

Morning,
Has anyone had any success with configuring a Catalyst 3750 with a Voice VLAN (Cisco phones) and 802.1x dynamic VLANs?
Is a RADIUS server able to provide values to change the native vlan?
Is there a decent tech note knocking about for configuring 'dynamic VLAN assignment through MAC addresses'?
Thanks,

Voice VLAN's don't require trunk ports to be configured (unless you are talkling about 2900XL/3500XL switches). Cisco added the ability to trunk a single 802.1q VLAN down an access port in addition to the access vlan - so in 2950 or above the only config you need is:
interface FastEthernet0/1
switchport
switchport mode access
switchport access vlan 10
switchport voice vlan 100
This is effectively the same as:
interface FastEthernet0/1
switchport
switchport trunk encapsulation dot1q
switchport mode trunk
switchport trunk native vlan 10
switchport trunk allowed vlan 10,100
The only difference is the CDP message with the first config will advertise the Voice VLAN capability and the tag.
With the older 2900XL/3500XL switches you had to configure the interfaces like the second example (plus adding the command switchport voice vlan xx for CDP to inform the IP Phone of the voice vlan).
QoS is not detailed anywhere here and that obviously plays an important role with voice.
In your scenario I am not sure ACS can do what you describe as this will require 802.1x supplicants on the client PC's (I may be wrong here and I do remember someone talking about switches being able to do an 802.1x 'proxy' using the MAC address on behalf of non 802.1x capable devices). This seems to me more of a VMPS application.
Personally I would reconfigure the network each time and charge the occupants a small fee for network setup.....
HTH
Andy

Dot1x with voice vlan

Hi guys,
recently i have configured the dot1x security feature on the cisco c3650x switches with IOS 15.2(1)E. But when I added voice vlan to the port, the ip phone can't register.
My switch port configuration as below:
interface GigabitEthernet0/47
switchport mode access
switchport voice vlan 60
switchport port-security maximum 2
switchport port-security
switchport port-security aging time 1
switchport port-security violation restrict
switchport port-security aging type inactivity
switchport port-security mac-address sticky
srr-queue bandwidth share 10 10 60 20
queue-set 2
priority-queue out
authentication event fail action authorize vlan 203
authentication event no-response action authorize vlan 203
authentication host-mode multi-host
authentication port-control auto
mls qos trust device cisco-phone
mls qos trust cos
macro description USER
dot1x pae authenticator
auto qos voip cisco-phone
spanning-tree portfast
spanning-tree bpduguard enable
service-policy input AutoQoS-Police-CiscoPhone
Guys, please advice is there any other feature shuld be activated on swith to resolve this issue? i done all configuration on guidance of cisco documents.
BR
Rashad

duplicate post: https://supportforums.cisco.com/thread/2248853?tstart=0
Don't stop after you've improved your network! Improve the world by lending money to the working poor:
http://www.kiva.org/invitedby/karsteni

SG300 voice vlan problem with UC520

Hi Forumers'
My problem statement:
- refere to attached topology.png, this is how my network structure look like
- the IP phone after boot cannot get connected, so it can't download the XML config file from UC520. suspicious switching problem.
- my configuration shown at topology.png and my vlan voice config show as voice vlan setting.png
- My requirement is SG300 switch single switchport to carry vlan data and vlan voice.
- what is the trunking mode for voice VLAN siwth a IP phone+data should i configure? is it switchport voice vlan vvid, switchport voice vlan dot1p, switchport voice vlan untagged or switchport voice vlan none to suite above requirement?
thanks
Noel

Hello Noel,
Sorry for the late reply, things have been quite hectic around here lately
1. Why use trunk? the UC520 only have vlan voice (vlan 20)
Do you mean that the data VLAN is handled by another device ? Still I would leave it as a trunk in order to be able manage the UC through the data VLAN. (Unless for security or other reasons you would choose otherwise of course)
2. The UC520 got CUE (voice messaging), how should i design the service module uplink to the core switch?
Nothing in particular has to be done for this, CUE is handled and routed inside the UC520, the CUE vlan (default ID =90) is only used if you have another CUE in the network
1. i guess i did this: swithcport tagged vlan 20, untagged vlan 10. is it ok for this setting?
If the Voice Vlan on the switch and on the UC520 has been defined as VLAN 20 (default = VLAN 100) this is perfect. Verify if both on the UC and on the switch, the voice VLAN ID is set to 20.
1. so if i just point the phone to vlan 20 (vlan voice), should i create the LLDP network policy?
If you are ready to configure the VLAN manually on the phone, you don't need the LLDP policy, that is correct.
The LLDP policy is being used for having the phones automatically choose the VLAN you defined, so you don't need to set it manually.
Hope this answers your questions ?
Best regards,
Nico Muselle
Sr. Network Engineer - CCNA

PVLANS used with Voice VLAN's

Hi,
I am working on a LAN Design that incorporates both Voice and Data and wondered if it is possible to have a switchport configured to be private VLAN and have a Voice VLAN configured as well
Thanks

No, according to the configuration guide on Private vlans:
Do not configure private VLAN ports on interfaces configured for these other features:
?Port Aggregation Protocol (PAgP)
?Link Aggregation Control Protocol (LACP)
?Voice VLAN
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/122sx/swcg/pvlans.htm
Please rate all posts.

802.1x, voice vlan and IP phone

Hi, I reviewed many posts here, and I still need the clarification how 802.1x on the switch works with non-Cisco IP phone (not supporting CDP) and PC connected to the PC port. If I configure 802.1x on a switch port, along with access and voice vlan, next I configure the static voice vlan on the non-Cisco phone, will it be possible to authenticate the user on the PC and bypass authentication for IP phone? Is CDP required in such scenario - (non-Cisco IP phone doesn't support it)?
Regards,
Krzysztof

You need CDP for touchless interop. CDP can of course be spoofed though, so proceed with caustion anyway.
You need multi-domain authentication to appropriately deal with non-Cisco phones and port-based access-control. See here to get started:
<http://www.cisco.com/en/US/products/ps7077/products_configuration_guide_chapter09186a008077a284.html#wp1231964>
Hope this helps,

802.1x and Voice VLAN

I had read articles on cco, and I believed for the same switch port we can have 802.1x configure and the voice vlan configure. It mean the IP phone is connect to the switch port with 802.1x configured, but the phone will not autheticate, only the workstation connect to phone data port will get authenticate.
I had configured 802.1x and test with notebook logon and able to access the network. Now I would like to test the notebook attached to IP phone data port, and the phone connect to switch port configure with 802.1x. But I failed to add voice vlan commmand. Why ?
interface GigabitEthernet9/48
description temporary port
switchport
switchport access vlan 12
switchport mode access
no ip address
dot1x port-control auto
spanning-tree portfast
CIG01-ENT-SW1(config-if)#switchport voice vlan 14
Command rejected: Gi9/48 is Dot1x enabled port.

Using IEEE 802.1x Authentication with Voice VLAN Ports
A voice VLAN port is a special access port associated with two VLAN identifiers:
?VVID to carry voice traffic to and from the IP phone. The VVID is used to configure the IP phone connected to the port.
?PVID to carry the data traffic to and from the workstation connected to the switch through the IP phone. The PVID is the native VLAN of the port.
In single-host mode, only the IP phone is allowed on the voice VLAN. In multiple-hosts mode, additional clients can send traffic on the voice VLAN after a supplicant is authenticated on the PVID. When multiple-hosts mode is enabled, the supplicant authentication affects both the PVID and the VVID.
A voice VLAN port becomes active when there is a link, and the device MAC address appears after the first CDP message from the IP phone. Cisco IP phones do not relay CDP messages from other devices. As a result, if several Cisco IP phones are connected in series, the switch recognizes only the one directly connected to it. When IEEE 802.1x authentication is enabled on a voice VLAN port, the switch drops packets from unrecognized Cisco IP phones more than one hop away.
When IEEE 802.1x authentication is enabled on a port, you cannot configure a port VLAN that is equal to a voice VLAN.
Waht kind of switch do you have? In 3550 I can configure the port for both vvid and pvid:
interface FastEthernet0/1
switchport access vlan 3
switchport mode access
switchport voice vlan 2
no ip address
dot1x port-control auto
spanning-tree portfast
end
Nevertheless, as the statement above indicates, the port will need to be configured for multi-host in order the PC behind the phone get autehntication:
under the interface configure "dot1x host-mode multi-host"
Nevermind, I just realized that you might have a 5600 running native, checking the configuration guide and realese notes it does not looks like dot1x and vvlan can play together in that platform.

Voice VLAN with Nortel

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