Cisco – Setup Cisco AP 1602 to broadcast 2.4 & 5Ghz on the same SSID

aironetciscowireless

From the documentation on the AP it looks like it can broadcast 2 BSSIDs with the same SSID. One on 2.4 Ghz and one on 5 GHz. Devices see one SSID and those that can connect on 5 are connected on 5 (a/n) and devices that can only connect on 2.4 (b/g/n) fail-over to 2.4.

I can't find instructions to do this.

  1. Is my understanding of the documentation correct?
  2. If so, how do I set this up?
  3. Any downsides I should be aware of? (interference, etc)

Best Answer

This is how you would set up dual-band 2.4Ghz / 5Ghz on a Cisco autonomous AP for Open auth... Basically just associate the SSID with Dot11Radio0 and Dot11Radio1; Substitute these WPA PSK configs if you want WPA PSK.

I can add PEAP or other EAP methods after I get home, but I haven't got access to my EAP notes right now.

!
version 15.2
no service pad
service tcp-keepalives-in
service tcp-keepalives-out
service timestamps debug datetime localtime show-timezone
service timestamps log datetime localtime show-timezone
service password-encryption
!
hostname Cisco_AP
!
!
logging rate-limit console 9
enable secret cisco
!
aaa new-model
!
!
aaa authentication login default local
!
!
!
!
!
aaa session-id common
clock timezone CST -6 0
clock summer-time CDT recurring
no ip source-route
no ip routing
no ip cef
!
!
!
!
login on-failure log
login on-success log
dot11 syslog
!
dot11 ssid OUR_SSID
   vlan 1
   max-associations 50
   authentication open
   mbssid guest-mode
!
!
dot11 guest
!
!
!
username Cisco password Cisco
!
!
bridge irb
!
!
!
interface Dot11Radio0
 no ip address
 no ip route-cache
 !
 ssid OUR_SSID
 !
 antenna gain 0
 stbc
 mbssid
 station-role root
 world-mode dot11d country-code US indoor
!
interface Dot11Radio0.1
 encapsulation dot1Q 1 native
 no ip route-cache
 bridge-group 1
 bridge-group 1 subscriber-loop-control
 bridge-group 1 spanning-disabled
 bridge-group 1 block-unknown-source
 no bridge-group 1 source-learning
 no bridge-group 1 unicast-flooding
!
interface Dot11Radio1
 no ip address
 no ip route-cache
 !
 ssid OUR_SSID
 !
 antenna gain 0
 peakdetect
 dfs band 3 block
 stbc
 mbssid
 channel dfs
 station-role root
 world-mode dot11d country-code US indoor
!
interface Dot11Radio1.1
 encapsulation dot1Q 1 native
 no ip route-cache
 bridge-group 1
 bridge-group 1 subscriber-loop-control
 bridge-group 1 spanning-disabled
 bridge-group 1 block-unknown-source
 no bridge-group 1 source-learning
 no bridge-group 1 unicast-flooding
!
interface GigabitEthernet0
 no ip address
 no ip route-cache
 duplex auto
 speed auto
 bridge-group 1
 bridge-group 1 spanning-disabled
 no bridge-group 1 source-learning
!
interface BVI1
 ip address 192.0.2.10 255.255.255.0
 no ip route-cache
 ipv6 address dhcp
 ipv6 address autoconfig
 ipv6 enable
!
ip forward-protocol nd
ip http server
no ip http secure-server
!
!
!
bridge 1 route ip
!
!
!
line con 0
line vty 0 4
 transport input all
!
end
Related Topic