Re: Avaya phones connected to Cisco switch is not getting DHCP l

gkchakravarthy · ‎03-22-2013

All,

The below is the configuration on our router and we are using Avaya phones on the network .

The phones are not receiving dhcp leases and not working ,can anybody suggest what is causing this issue.

Building configuration...

Current configuration : 7871 bytes
!
! Last configuration change at 13:34:44 UTC Thu Mar 21 2013 by phadmin
version 15.1
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname ESBRBARMPLS5MB
!
boot-start-marker
boot-end-marker
!
!

no aaa new-model
!
no ipv6 cef
ip source-route
ip cef
--More-- !
!
!
ip dhcp excluded-address 192.168.5.1 192.168.5.5
ip dhcp excluded-address 172.25.18.1 172.25.18.50
ip dhcp excluded-address 172.25.19.1 172.25.19.20
ip dhcp excluded-address 192.168.5.199 192.168.5.254
!
ip dhcp pool guest
network 192.168.5.0 255.255.255.0
default-router 192.168.5.1
lease 24
!
ip dhcp pool LAN
network 172.25.18.0 255.255.255.0
dns-server 172.26.1.5 172.26.1.125
default-router 172.25.18.1
domain-name xxxxxx.com
netbios-name-server 172.26.1.125 172.26.2.22
option 242 ascii L2Q=1,L2QVLAN=60
lease 3
!
ip dhcp pool VOICE
network 172.25.19.0 255.255.255.0
dns-server 172.26.1.5 172.26.1.125
default-router 172.25.19.1
option 242 ascii MCIPADD=172.25.19.4, MCPORT=1719, HTTPSRVR=172.25.19.5, VLANTEST=0
!
!
ip domain name xxxxxxx.com
ip name-server 172.xx.xx.xx
ip name-server 172.xx.xx.xx
multilink bundle-name authenticated
!
!

!
vtp interface gi0/0.1

!
interface Embedded-Service-Engine0/0
no ip address
shutdown
!
interface GigabitEthernet0/0
ip address 192.168.0.26 255.255.255.252
duplex auto
speed auto
!
interface GigabitEthernet0/1
description #Connected to Active LAN#
no ip address
no ip route-cache
duplex auto
speed auto
!
interface GigabitEthernet0/1.1
encapsulation dot1Q 1 native
ip address 172.25.18.1 255.255.255.0
no ip route-cache
!
interface GigabitEthernet0/1.50
encapsulation dot1Q 50
ip address 192.168.5.1 255.255.255.0
ip access-group 51 out
no ip route-cache
!
interface GigabitEthernet0/1.60
description Voice Vlan
encapsulation dot1Q 60
ip address 172.25.19.1 255.255.255.0
no ip route-cache
!
interface GigabitEthernet0/2
ip address 10.1.100.2 255.255.255.252
duplex auto
speed auto
!
router bgp 65000
synchronization
bgp log-neighbor-changes
network 172.25.18.0 mask 255.255.255.0
network 172.25.19.0 mask 255.255.255.0
neighbor 192.168.0.25 remote-as xxxx
neighbor 192.168.0.25 soft-reconfiguration inbound
neighbor 192.168.0.25 prefix-list deny-route in
!
ip forward-protocol nd
!
no ip http server
ip http access-class 23
ip http authentication local
no ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
!
ip route 0.0.0.0 0.0.0.0 10.1.100.1
!
!
ip prefix-list deny-route seq 5 deny 0.0.0.0/0
ip prefix-list deny-route seq 10 permit 0.0.0.0/0 le 32
access-list 23 permit 10.10.10.0 0.0.0.7
access-list 23 permit 172.26.0.0 0.0.255.255
access-list 23 permit 192.168.0.0 0.0.255.255
access-list 51 deny 172.16.0.0 0.15.255.255
access-list 51 deny 10.4.0.0 0.0.255.255
access-list 51 permit any
!
route-map guest_traffic permit 10
match ip address 51
set ip default next-hop 192.168.1.2

!

acampbell · ‎03-22-2013

Hi,

Can we see the config from the switchports that phones are connected to.

Also the uplink port for the switch to this router.

Regards,
Alex.
Please rate useful posts.

Regards, Alex. Please rate useful posts.

Anas Abueideh · ‎03-22-2013

Hi,

kindly find the below threads. I think they will help you

https://supportforums.cisco.com/message/325037#325037

https://supportforums.cisco.com/message/3529601#3529601

HTH

Anas

please rate if it is helpful

gkchakravarthy · ‎03-25-2013

Hello Alex,

please find the below configuration of the switch where phones are connected and it is access switch connected to core with l3 capability and then connected to router

Current configuration : 5404 bytes
!
version 12.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname xxxxxxx
!
boot-start-marker
boot-end-marker
!

!
!
no aaa new-model
system mtu routing 1500
vtp domain none
vtp mode transparent
ip subnet-zero

!
!
!
!
!
!
!
spanning-tree mode pvst
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
vlan 50,60
!
!
!
interface GigabitEthernet0/1
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/2
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/3
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/4
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/5
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/6
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/7
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/8
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/9
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/10
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/11
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/12
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/13
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/14
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/15
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/16
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/17
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/18
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/19
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/20
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/21
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/22
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/23
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/24
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/25
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/26
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/27
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/28
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/29
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/30
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/31
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/32
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/33
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/34
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/35
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/36
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/37
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/38
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/39
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/40
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/41
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/42
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/43
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/44
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/45
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/46
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/47
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/48
switchport access vlan 60
switchport mode access
!
interface GigabitEthernet0/49
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface GigabitEthernet0/50
!
interface GigabitEthernet0/51
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface GigabitEthernet0/52
!
interface Vlan1
ip address 172.25.18.10 255.255.255.0
!
ip default-gateway 17.25.18.1
ip classless
ip http server
!
control-plane
!
!
line con 0
line vty 0 4
login local
line vty 5 15
login
!
end

gkchakravarthy · ‎03-25-2013

this is the configuration from core to router and there are 3 other switches in between core and the switch where phones are connected.

xxxxxT>en
Password:
xxxxxxT#sh cdp nei
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone,
D - Remote, C - CVTA, M - Two-port Mac Relay

Device ID        Local Intrfce     Holdtme    Capability Platform Port ID
xxxxx03         Gig 0/38          127               T    AIR-CAP35 Gig 0
xxxxx02         Gig 0/34          137               T    AIR-CAP35 Gig 0
xxxxP01         Gig 0/36          159               T    AIR-CAP35 Gig 0
Exxxxx     Gig 0/49          134              S I   WS-C3560G Gig 0/51
xxxx
                 Gig 0/1           164             R S I CISCO2921 Gig 0/1.1
xxxxxxxxxxT#sh run int Gig 0/1
Building configuration...

Current configuration : 123 bytes
!
interface GigabitEthernet0/1
description Router Gi0/1
switchport trunk encapsulation dot1q
switchport mode trunk
end

gkchakravarthy · ‎03-25-2013

Thanks Anas will check the documentation.

VLT06 · ‎03-25-2013

Are the phones connecting in the first instance, or loosing their lease when disconnected?

I am assuming that the DCHP option have been checked and the phones setting files checked as well?

Aman Soi · ‎03-26-2013

Hi Chakravarthy,

Can u share the Avaya IP phone model ?

regds,

aman

gkchakravarthy · ‎03-27-2013

Hi Aman,

Phone model is 9608

Regards

Chakra.

gkchakravarthy · ‎03-27-2013

Hi James,

phones are sendind requests but router is not leasing the ip addresses.

Aman Soi · ‎03-28-2013

Hi Chakravarthy,

Please refer the Avaya Links which say about Avaya 9608 IP phone Firmware and some info related to LLDP.

http://support.avaya.com/forums/showthread.php?t=1386

http://downloads.avaya.com/css/P8/documents/100092537

Please try speaking to Avaya as well.

regds,

aman

gkchakravarthy · ‎03-29-2013

Thanks Aman ,will give a try.

Nicolo.santander · ‎03-30-2013

I had this problem before when I deployed AVAYA IP Office and Phones with cisco switch This is what you should do:

AVAYA IP Phones recognize only LLDP protocol not CDP so just run LLDP globally switch#(config)lldp run
then check if w/ switch#show lldp neighbors.
After that it is a good practice to Enable the VLAN tag and ID on the AVAYA IP phones. then on the vlan interface point the DHCP server of AVAYA IP phones to the IP OFFICE with switch#(config-if)ip helper-address x.x.x.x
Also avaya IP phone is using option 66 (TFTP server name) not option 150 (TFTP server IP address) so the IP phones should resolve the TFTP server (IP OFFICE).

gkchakravarthy · ‎04-01-2013

Thanks Nicolo for your reply.

but however we are using same configuration at the other remote office and it is working fine i checked all the switches in that n/w for lldp and it is not enabled.

acampbell · ‎04-03-2013

Gopineni,

I have been looking at the 9608 phone.

http://downloads.avaya.com/css/P8/documents/100161759

I think the issue hereis related to the option 242 in your dhcp scope in the original posting

Can you try removing the setting and re-insrting without the VLANTEST option

!

ip dhcp pool VOICE

no option 242 ascii MCIPADD=172.25.19.4, MCPORT=1719, HTTPSRVR=172.25.19.5, VLANTEST=0

option 242 ascii MCIPADD=172.25.19.4, MCPORT=1719, HTTPSRVR=172.25.19.5

!

Looks like the phone is trying to tag an 802.1Q value.

You ports are all set set to access in vlan 60 so we do not

want any tagging.

Worth a try.

Regards,
Alex.
Please rate useful posts.

Regards, Alex. Please rate useful posts.

Avaya phones connected to Cisco switch is not getting DHCP leases and phones not working