Table of Contents

General Information

router#conf t
router(config)#int fa0.2
router(config-subif)#ip helper-address address_of_server
router(config-subif)#end 

Multiple SSIDs example

config t
dot11 ssid LAB2
authentication open
authentication key-management wpa
! authentication key-management wpa version 2
wpa-psk ascii testing123
vlan 2
mbssid guest-mode
exit
int dot11radio0
mbssid
!channel 2412
!channel 2437
channel 2462
encryption vlan 2 mode ciphers aes-ccm tkip
! encryption vlan 2 mode ciphers aes-ccm
ssid LAB2
no shut
exit
interface dot11Radio 0.2
encapsulation dot1Q 2 native
exit
int fa0.2
encapsulation dot1Q 2 native
exit
exit
! --------------------
config t
dot11 ssid LAB3
authentication open
authentication key-management wpa
! authentication key-management wpa version 2
wpa-psk ascii testing123
vlan 3
mbssid guest-mode
exit
int dot11radio0
mbssid
! encryption vlan 3 mode ciphers aes-ccm tkip
encryption vlan 3 mode ciphers aes-ccm
ssid LAB3
no shut
exit
interface dot11Radio 0.3
encapsulation dot1Q 3
bridge-group 1
exit
int fa0.3
encapsulation dot1Q 3
exit
exit
! --------------------
config t
dot11 ssid LAB4
authentication open
authentication key-management wpa
! authentication key-management wpa version 2
wpa-psk ascii testing123
vlan 4
mbssid guest-mode
exit
int dot11radio0
mbssid
! encryption vlan 4 mode ciphers aes-ccm tkip
encryption vlan 4 mode ciphers aes-ccm
ssid LAB4
no shut
exit
interface dot11Radio 0.4
encapsulation dot1Q 4
bridge-group 1
exit
int fa0.4
encapsulation dot1Q 4
exit
exit
copy run start

note: see comment about vlans and switchports above. That configuration for the fastethernet may be required

References