DHCP Problem with 3750 Switch

IrishMann · ‎11-25-2011

Hello All,

I have an existing vlan 333 that I use for a data network and pull dhcp requests from a MS Server, works perfectly.

I have created a new voice vlan 334 with an ip-helper pointing to my dhcp server. I have setup the new scope on the server, but for what ever reason

my phones cannot receive an IP. If I use vlan 333 for the phones they work fine. Any help would be appreciated,what am I missing from my config ?

version 12.2

no service pad

service tcp-keepalives-in

service tcp-keepalives-out

service timestamps debug datetime msec localtime show-timezone

service timestamps log datetime msec localtime show-timezone

service password-encryption

service sequence-numbers

!

hostname-SWITCH

!

enable secret 5 $1$2MHS$CV7j3THosU.cCEsr67wiz/

!

username itmiss privilege 15 secret 5 $1$frKc$sLXZ6HUu9hqM8IV8cjjqe1

aaa new-model

aaa authentication login default group tacacs+ local

aaa authorization exec default group tacacs+ local

aaa accounting update newinfo

aaa accounting exec default start-stop group tacacs+

aaa accounting commands 15 default start-stop group tacacs+

aaa accounting network default start-stop group tacacs+

aaa accounting connection default start-stop group tacacs+

aaa accounting system default start-stop group tacacs+

!

aaa session-id common

switch 1 provision ws-c3750-48p

switch 2 provision ws-c3750-48p

system mtu routing 1500

vtp domain jevco

vtp mode transparent

ip subnet-zero

no ip source-route

ip routing

no ip gratuitous-arps

ip tcp synwait-time 10

no ip domain-lookup

ip domain-name jevco.local

!

ip ssh time-out 60

ip ssh version 2

!

mls qos map cos-dscp 0 8 16 26 32 46 48 56

mls qos srr-queue input bandwidth 90 10

mls qos srr-queue input threshold 1 8 16

mls qos srr-queue input threshold 2 34 66

mls qos srr-queue input buffers 67 33

mls qos srr-queue input cos-map queue 1 threshold 2 1

mls qos srr-queue input cos-map queue 1 threshold 3 0

mls qos srr-queue input cos-map queue 2 threshold 1 2

mls qos srr-queue input cos-map queue 2 threshold 2 4 6 7

mls qos srr-queue input cos-map queue 2 threshold 3 3 5

mls qos srr-queue input dscp-map queue 1 threshold 2 9 10 11 12 13 14 15

mls qos srr-queue input dscp-map queue 1 threshold 3 0 1 2 3 4 5 6 7

mls qos srr-queue input dscp-map queue 1 threshold 3 32

mls qos srr-queue input dscp-map queue 2 threshold 1 16 17 18 19 20 21 22 23

mls qos srr-queue input dscp-map queue 2 threshold 2 33 34 35 36 37 38 39 48

mls qos srr-queue input dscp-map queue 2 threshold 2 49 50 51 52 53 54 55 56

mls qos srr-queue input dscp-map queue 2 threshold 2 57 58 59 60 61 62 63

mls qos srr-queue input dscp-map queue 2 threshold 3 24 25 26 27 28 29 30 31

mls qos srr-queue input dscp-map queue 2 threshold 3 40 41 42 43 44 45 46 47

mls qos srr-queue output cos-map queue 1 threshold 3 5

mls qos srr-queue output cos-map queue 2 threshold 3 3 6 7

mls qos srr-queue output cos-map queue 3 threshold 3 2 4

mls qos srr-queue output cos-map queue 4 threshold 2 1

mls qos srr-queue output cos-map queue 4 threshold 3 0

mls qos srr-queue output dscp-map queue 1 threshold 3 40 41 42 43 44 45 46 47

mls qos srr-queue output dscp-map queue 2 threshold 3 24 25 26 27 28 29 30 31

mls qos srr-queue output dscp-map queue 2 threshold 3 48 49 50 51 52 53 54 55

mls qos srr-queue output dscp-map queue 2 threshold 3 56 57 58 59 60 61 62 63

mls qos srr-queue output dscp-map queue 3 threshold 3 16 17 18 19 20 21 22 23

mls qos srr-queue output dscp-map queue 3 threshold 3 32 33 34 35 36 37 38 39

mls qos srr-queue output dscp-map queue 4 threshold 1 8

mls qos srr-queue output dscp-map queue 4 threshold 2 9 10 11 12 13 14 15

mls qos srr-queue output dscp-map queue 4 threshold 3 0 1 2 3 4 5 6 7

mls qos queue-set output 1 threshold 1 138 138 92 138

mls qos queue-set output 1 threshold 2 138 138 92 400

mls qos queue-set output 1 threshold 3 36 77 100 318

mls qos queue-set output 1 threshold 4 20 50 67 400

mls qos queue-set output 2 threshold 1 149 149 100 149

mls qos queue-set output 2 threshold 2 118 118 100 235

mls qos queue-set output 2 threshold 3 41 68 100 272

mls qos queue-set output 2 threshold 4 42 72 100 242

mls qos queue-set output 1 buffers 10 10 26 54

mls qos queue-set output 2 buffers 16 6 17 61

mls qos

!

crypto pki trustpoint TP-self-signed-2714204672

enrollment selfsigned

subject-name cn=IOS-Self-Signed-Certificate-2714204672

revocation-check none

rsakeypair TP-self-signed-2714204672

!

crypto pki certificate chain TP-self-signed-2714204672

certificate self-signed 01

308202A8 30820211 A0030201 02020101 300D0609 2A864886 F70D0101 04050030

5C312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274

69666963 6174652D 32373134 32303436 37323129 30270609 2A864886 F70D0109

02161A43 414C4741 52592D53 57495443 482E6A65 76636F2E 6C6F6361 6C301E17

0D393330 33303130 30303134 355A170D 32303031 30313030 30303030 5A305C31

2F302D06 03550403 1326494F 532D5365 6C662D53 69676E65 642D4365 72746966

69636174 652D3237 31343230 34363732 31293027 06092A86 4886F70D 01090216

1A43414C 47415259 2D535749 5443482E 6A657663 6F2E6C6F 63616C30 819F300D

06092A86 4886F70D 01010105 0003818D 00308189 02818100 B51A1916 B271C766

720F0D10 F924AB06 6EBA6133 463B29FD 8DC6EB88 4154F8D5 4CDCF783 F691E451

5E256154 503C6F3C 439CDD62 411E5341 26EC592C AB85B70C 2B52E50A 6F985683

39D5CEB0 5E728FE5 DDD87C73 63E3C16B 7E601A41 71D22BD5 A64EE5AD 1B6C6085

49895B73 7FBEAEFD 4E508A6A 03B1F3A9 FB9F3749 DC0FBAEF 02030100 01A37A30

78300F06 03551D13 0101FF04 05300301 01FF3025 0603551D 11041E30 1C821A43

414C4741 52592D53 57495443 482E6A65 76636F2E 6C6F6361 6C301F06 03551D23

04183016 8014B576 E9178368 4C104DE4 A1C08F8A DA74B2FB EA8C301D 0603551D

0E041604 14B576E9 1783684C 104DE4A1 C08F8ADA 74B2FBEA 8C300D06 092A8648

86F70D01 01040500 03818100 04B751B5 28603440 EADEB7D9 0C7B4191 11D5909D

98DEBCA4 6458AEBA C487DDE7 F97DD898 AD319989 43272DDD 1C10AA49 627EBF32

F38E0FD9 9CC5BA69 4986BEB5 BA9FCDEF 8E464607 75A49F78 C5E15873 EBA8FB81

833D17A4 6F528FAC C354CD59 2B9D4386 F7E40073 31DBF3E6 8F3D20B5 9492F468

EEF367D4 8A0B9375 29DA2D40

quit

!

no file verify auto

spanning-tree mode pvst

spanning-tree extend system-id

!

vlan internal allocation policy ascending

!

vlan 333

name Vlan-333-Data

!

vlan 334

name Vlan-334-Voice

!

vlan 335

name Vlan-335-Management

!

vlan 933

name Vlan_Native

!

interface FastEthernet1/0/1

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/2

description Connection to Bell PSTN Router

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/3

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/4

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/5

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/6

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/7

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/8

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/9

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/10

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/11

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/12

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/13

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/14

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/15

switchport access vlan 335

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/16

switchport access vlan 333

switchport mode access

switchport voice vlan 334

no mdix auto

spanning-tree portfast

!

interface FastEthernet1/0/17

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/18

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/19

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/20

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/21

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/22

switchport access vlan 333

switchport mode access

switchport voice vlan 334

srr-queue bandwidth share 10 10 60 20

srr-queue bandwidth shape 10 0 0 0

mls qos trust device cisco-phone

mls qos trust cos

auto qos voip cisco-phone

no mdix auto

spanning-tree portfast

!

interface FastEthernet1/0/23

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/24

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/25

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/26

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/27

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/28

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/29

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/30

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/31

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/32

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/33

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/34

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/35

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/36

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/37

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/38

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/39

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/40

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/41

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/42

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/43

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/44

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/45

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/46

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/47

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet1/0/48

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

interface GigabitEthernet1/0/1

!

interface GigabitEthernet1/0/2

!

interface GigabitEthernet1/0/3

!

interface GigabitEthernet1/0/4

!

interface FastEthernet2/0/1

description Connection to Bell PSTN Router

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/2

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/3

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/4

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/5

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/6

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/7

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/8

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/9

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/10

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/11

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/12

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/13

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/14

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/15

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/16

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/17

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/18

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/19

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/20

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/21

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/22

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/23

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/24

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/25

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/26

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/27

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/28

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/29

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/30

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/31

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/32

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/33

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/34

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/35

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/36

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/37

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/38

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/39

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/40

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/41

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/42

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/43

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/44

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/45

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/46

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/47

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface FastEthernet2/0/48

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

interface GigabitEthernet2/0/1

!

interface GigabitEthernet2/0/2

!

interface GigabitEthernet2/0/3

!

interface GigabitEthernet2/0/4

!

interface Vlan1

no ip address

shutdown

!

interface Vlan333

ip address 10.3.0.1 255.255.255.0

ip helper-address 10.3.0.4

!

interface Vlan334

ip address 10.3.33.1 255.255.255.0

ip helper-address 10.3.0.4

!

interface Vlan335

ip address 10.3.35.1 255.255.255.0

ip helper-address 10.3.0.4

!

ip default-gateway 10.3.0.1

ip classless

ip forward-protocol udp bootpc

ip forward-protocol udp bootps

ip route 0.0.0.0 0.0.0.0 10.3.0.2

ip http server

ip http secure-server

ip tacacs source-interface Vlan333

!

logging trap debugging

logging 10.0.5.37

logging 10.0.57.104

access-list 57 permit 10.0.5.37

access-list 57 permit 10.0.57.0 0.0.0.255

access-list 57 deny any log

snmp-server community

snmp-server location

snmp-server enable traps snmp authentication linkdown linkup coldstart warmstart

snmp-server enable traps cluster

snmp-server enable traps entity

snmp-server enable traps cpu threshold

snmp-server enable traps vtp

snmp-server enable traps port-security

snmp-server enable traps envmon fan shutdown supply temperature status

snmp-server enable traps license

snmp-server enable traps config

tacacs-server host 10.0.0.29 key 7 096F6D482A2647

tacacs-server directed-request

radius-server source-ports 1645-1646

!

control-plane

!

banner motd ^CC

+-----------------------------------------------------------------------+

| WARNING |

| |

| The programs and data stored on this system are licensed to or are |

| private property of this organization and are lawfully available |

| only to authorized users for approved purposes. Unauthorized access |

| to this system, or any program or data on this system is not |

| permitted. Unauthorized access beyond this point may lead to |

| prosecution. This system is subject to monitoring and anyone using |

| this system expressly consents to such monitoring. |

| |

| If you are not an authorized user, DO NOT ATTEMPT TO LOG IN. |

| |

+-----------------------------------------------------------------------+

^C

alias exec si sh ip int brief

!

line con 0

logging synchronous

length 40

width 120

line vty 0 4

access-class 57 in

logging synchronous

width 120

transport input telnet ssh

line vty 5 15

!

ntp clock-period 36028820

ntp server 10.0.5.47

end

cadet alain · ‎11-25-2011

Hi,

1)you can remove ip helper-address on interface Vlan 333

2) have you got a route to 10.3.33.0/24 on your DHCP server ?

3) where is your DHCP server connected ?

Regards.

Alain

Don't forget to rate helpful posts.

IrishMann · ‎11-25-2011

Hello Alain,

1. Yes I can remove the ip-helper on vlan 333

2. My DHCP server can ping 10.3.33.1 which is the switch itself.

3. The DHCP server is connected on FastE 1/0/14, should I change to trunk mode ?

Thanks

Colin

cadet alain · ‎11-25-2011

Hi,

no but you can remove the voice vlan from this port as well as the Qos trust device Cisco-phone.

are you sure your phones are receiving the correct VLAN info from CDP ? Are these Cisco Phones?

Regards.

Don't forget to rate helpful posts.

IrishMann · ‎11-25-2011

Yes they are Cisco Phones.

sh cdp entry * shows the following....

Device ID: SEP58BC2775DD0C

Entry address(es):

IP address: 10.3.0.69

Platform: Cisco IP Phone 7942, Capabilities: Host Phone

Interface: FastEthernet1/0/16, Port ID (outgoing port): Port 1

Holdtime : 153 sec

Version :

SCCP42.9-1-1SR1S

advertisement version: 2

Duplex: full

Power drawn: 6.300 Watts

Power request id: 56588, Power management id: 3

Power request levels are:6300 0 0 0 0

Management address(es):

acampbell · ‎11-25-2011

Hi,

I ve had loads of issues like this before, re config for the DHCP server port with QOS and trunking etc

Like Alain has said

Reconfigure the DHCP server port to a purely access port in the data vlan

You say it is on int fas 1/0/14

!

interface FastEthernet1/0/14

switchport access vlan 333

switchport mode access

switchport voice vlan 334

mls qos trust device cisco-phone

spanning-tree portfast

!

change this to:-

!

interface FastEthernet1/0/14

desc *** DHCP SERVER ***

switchport access vlan 333

switchport mode access

no switchport voice vlan 334

no mls qos trust device cisco-phone

spanning-tree portfast

!

Regards

Alex

Regards, Alex. Please rate useful posts.

IrishMann · ‎11-30-2011

Hey Guys,

Believe it or now, I am now have a total DHCP outage with any device that is connected to this switch stack. I am puzzled. Is there anything else I can look at or use to debug dhcp requests ?

Cheers

Colin

IrishMann · ‎12-06-2011

Finally found a solution to this mess.

Our Windows DHCP Server had "DHCP Filtering" enabled. As soon as I disabled this feature our clients began to grab ip's.

Unbelievable..