Need Help! Vlan problem

[shuangufl]

I set up three vlans on 3560 switch(using command:switchport access vlan #) But when I connect my PC to any port assigned to those vlans including vlan1(default), my PC cannot obtain the IP address automaticlly. How can I solve this problem? Many thanks!

[mohammedmahmoud]

Hi,

In which VLAN does the DHCP server reside ?

BR,

Mohammed Mahmoud.

[shuangufl]

VLAN1(the default one)

[chris.lepa]

Hi,

(config)#int vlan

(config-if)#ip helper-address

Hope that helps.

-Chris

[hassan_oudeh]

hi,

make sure that your server is reachable and if there is any snooping configured on your switch.

could you post the config of your switch will help better

thanks

[shuangufl]

Current configuration : 3202 bytes

!

version 12.2

no service pad

service timestamps debug uptime

service timestamps log uptime

no service password-encryption

!

hostname Switch

!

!

no aaa new-model

ip subnet-zero

ip routing

!

ip multicast-routing distributed

ip igmp snooping vlan 1 static 239.1.1.14 interface Fa0/4

ip igmp snooping vlan 1 static 239.1.1.14 interface Fa0/6

ip igmp snooping vlan 1 static 239.1.1.13 interface Fa0/3

ip igmp snooping vlan 1 static 239.1.1.13 interface Fa0/6

ip igmp snooping vlan 1 static 239.1.1.12 interface Fa0/2

ip igmp snooping vlan 1 static 239.1.1.12 interface Fa0/6

ip igmp snooping vlan 1 static 239.1.1.11 interface Fa0/1

ip igmp snooping vlan 1 static 239.1.1.11 interface Fa0/6

ip igmp snooping vlan 3 static 239.1.1.15 interface Fa0/15

ip igmp snooping vlan 3 static 239.1.1.15 interface Fa0/17

ip igmp snooping vlan 3 static 239.1.1.18 interface Fa0/17

ip igmp snooping vlan 3 static 239.1.1.17 interface Fa0/15

ip igmp snooping vlan 3 static 239.1.1.17 interface Fa0/17

ip igmp snooping vlan 3 static 239.1.1.16 interface Fa0/15

ip igmp snooping vlan 3 static 239.1.1.16 interface Fa0/17

!

!

!

no file verify auto

spanning-tree mode pvst

spanning-tree extend system-id

!

!

vlan internal allocation policy ascending

!

!

interface FastEthernet0/1

switchport mode access

!

interface FastEthernet0/2

switchport mode access

!

interface FastEthernet0/3

switchport mode access

!

interface FastEthernet0/4

switchport mode access

!

interface FastEthernet0/5

switchport mode access

!

interface FastEthernet0/6

switchport mode access

!

interface FastEthernet0/7

!

interface FastEthernet0/8

switchport mode access

!

interface FastEthernet0/9

!

interface FastEthernet0/10

switchport access vlan 3

switchport mode access

!

interface FastEthernet0/11

switchport access vlan 3

switchport mode access

!

interface FastEthernet0/12

switchport access vlan 3

switchport mode access

!

interface FastEthernet0/13

switchport access vlan 3

switchport mode access

!

interface FastEthernet0/14

no switchport

no ip address

!

interface FastEthernet0/15

switchport access vlan 3

switchport mode access

ip access-group 1 in

!

interface FastEthernet0/16

no switchport

no ip address

!

interface FastEthernet0/17

switchport access vlan 3

switchport mode access

ip access-group 1 in

!

interface FastEthernet0/18

switchport access vlan 4

switchport mode access

!

interface FastEthernet0/19

switchport access vlan 4

switchport mode access

!

interface FastEthernet0/20

switchport access vlan 4

switchport mode access

!

interface FastEthernet0/21

switchport access vlan 4

switchport mode access

!

interface FastEthernet0/22

switchport access vlan 4

switchport mode access

!

interface FastEthernet0/23

!

interface FastEthernet0/24

!

interface GigabitEthernet0/1

!

interface GigabitEthernet0/2

!

interface Vlan1

no ip address

!

interface Vlan2

no ip address

no ip mroute-cache

!

interface Vlan3

no ip address

!

interface Vlan4

no ip address

!

ip classless

ip route 192.168.10.34 255.255.255.255 FastEthernet0/14

ip route 192.168.10.40 255.255.255.255 FastEthernet0/16

ip http server

!

!

access-list 1 deny any

!

control-plane

!

!

line con 0

line vty 0 4

login

line vty 5 15

login

!

end

Thanks a lot!