05-06-2014 12:16 PM - edited 07-05-2021 12:47 AM
If I have ssid under radio0 (2.4GHz) and the same ssid under radio1 (5GHz) and connect a dual-band laptop or smartphone to the ssid, how do I know which radio it's connected to?
interface Dot11Radio0
no ip address
no ip route-cache
!
encryption vlan 1 mode ciphers aes-ccm
!
encryption vlan 40 mode ciphers aes-ccm
!
encryption mode ciphers aes-ccm
!
ssid HomeNet25G
!
antenna gain 0
mbssid
----------------------------
interface Dot11Radio1
no ip address
no ip route-cache
!
encryption vlan 1 mode ciphers aes-ccm
!
encryption vlan 40 mode ciphers aes-ccm
!
ssid HomeNet25G
!
antenna gain 0
dfs band 3 block
mbssid
channel dfs
station-role root
05-06-2014 01:31 PM
If you get "show dot11 associations <Client_MAC_Address>" output from your AP you would see which band client is connected.
If you want to see what clients associated on Radio 0 & what clients associated to Radio 1 you can use same command with below syntax.
show dot11 associations interface dot11Radio 0
show dot11 associations interface dot11Radio 1
HTH
Rasika
**** Pls rate all useful responses ****
05-06-2014 02:47 PM
I guess my other question is this. It's nice that I can check the associations from the AP itself but that won't be practical for my goal.
I have clients that connect with devices that support both bands (2GHz and5GHz), like my smartphone. And I have other clients that can only connect to the 2.4GHz band like my laptop. When the laptop connects to HomeNet25G, I know it's on the 2.4GHz radio but there's no way for me to figure out which radio the smartphone is on without using a third party tool and such. Is there a way to tell the AP to put all clients that support both bands on the 5GHz radio?
05-06-2014 03:49 PM
Hi
What type of AP model are you using ?
If it is one of these model & you are running 15.2(2)JB2 or later you can enable "band select" feature on your SSID so that dual band clients will be connected in 5GHz band.
• AP1260
• AP 1040
• AP 1140
• AP 3500i
• AP 3500e
• AP 3600i
• AP 3600e
• AP 2600i
• AP 2600e
• AP 1600i
• AP 1600e
• AP 1550
this software version is not supported in below AP models
• AP 1130
• AP 1240
• AP 1250
• AP 1310
Here is the release notes
http://www.cisco.com/c/en/us/td/docs/wireless/access_point/ios/release/notes/15-2_2_JB2.pdf
In CLI you have to simply configure it like this
AAP(config)# dot11 ssid abcd
AAP(config-ssid)# band-select
HTH
Rasika
**** Pls rate all useful responses ****
05-06-2014 03:56 PM
05-06-2014 04:37 PM
Cisco IOS Software, AP801 Software (AP801-K9W7-M), Version 15.2(4)JA1
That's the model of the AP and the version of the IOS I'm running.
I run the band-select command on my ssid and it looks like it took. I have to test it out on my dual band devices.
Well, that didn't work. After enabling band select, I wasn't I lost connection to the SSID and I'm unable to reconnect. I've disabled the band select and rebooted the AP but that hasn't helped.
05-06-2014 04:57 PM
That's great, Hopefully it will work for you even document does not listed that AP model as supported.
If that works pls mark this thread as answered.
Pls keep us update
HTH
Rasika
05-06-2014 07:01 PM
I had to reset the AP and reconfigure it to get it working again. I would still like to find a solution for my problem.
Thanks for all your help.
What I would really like to do on this device is setup the AP with 3 SSID's (HomeNet2G, HomeNet5G and HomeNetGuest). Have the first two SSID's on one VLAN (preferably the same VLAN as the LAN network), HomeNet2G on Radio0 (2GHz) and HomeNet5G on Radio1 (5GHz). Then have the Guest SSID on a different VLAN.
If this can be done, it solves my problem but I'm told it can't which is a disappointment because I was doing this with my $50 Linksys router.
06-24-2014 01:09 AM
Hi,
run this command
show dot11 associations to view your clients connected to which Band.
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