Autonous AP dotradio interface reset down state

[Pranav Mhatre]

Hello Experts,

AP#show ip int br
Interface                  IP-Address      OK? Method Status                Protocol
BVI1                       192.168.143.149  YES NVRAM  up                    up
Dot11Radio0                unassigned      YES NVRAM  reset                 down
Dot11Radio0.100            unassigned      YES unset  reset                 down
Dot11Radio0.113            unassigned      YES unset  reset                 down
Dot11Radio1                unassigned      YES NVRAM  administratively down down
FastEthernet0              unassigned      YES NVRAM  up                    up
FastEthernet0.100          unassigned      YES unset  up                    up
FastEthernet0.112          unassigned      YES unset  up                    up

AP model -AIR-AP1242AG-E-K9 , IOS - /c1240-k9w7-mx.123-8.JEA/c1240-k9w7-mx.123-8.JEA"

How to make interface UP UP from reset down ?

[Sandeep Choudhary]

Hi Pranav,

Console into the AP and reboot.  Post the entire boot-up process.

If you can then also paste the AP config.

How you are powering up the AP ?

Regards

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[Pranav Mhatre]

Hello Sandeep,

I can not share boot process as I do not have FE now.

Please find attached config of AP.

AP is getting power from external source not from POE.

Regards,

Pranav

[Sandeep Choudhary]

Hi,

if you have only one SSID then remove mbssid commands. Try these changes and save it, reboot it. If still the same issue the paste the output of the command: show controllers dot11Radio 0

dot11 ssid 456_abcdefg
   vlan 456
   authentication open
   authentication key-management wpa
   mbssid guest-mode
   guest-mode
   wpa-psk ascii 7 456abcdefgabiwork

interface Dot11Radio0
 no ip address
 no ip route-cache
 !
 encryption mode ciphers tkip
 !
 encryption vlan 456 mode ciphers tkip
 !
 ssid 456_abcdefg
 !
 mbssid
 speed basic-1.0 basic-2.0 basic-5.5 6.0 9.0 basic-11.0 12.0 18.0 24.0 36.0 48.0 54.0
 station-role root

[Pranav Mhatre]

Hello Sandeep,

Still same.

Please find attached required output.

Can you please tell me why dud you suggest to remove below line.

encryption mode ciphers tkip

[Sandeep Choudhary]

its not mandatory to use the command because you are using VLAN 456 so you should only use  encryption vlan 456 mode ciphers tkip

More info from my post: https://rscciew.wordpress.com/2014/05/24/single-ssid-configuration-on-autonomous-ap/

Regards

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[Pranav Mhatre]

Thanks Sandeep,

Should I change anything else in AP?

[Sandeep Choudhary]

No. 

Test with new config and let us know.

Regards

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[Pranav Mhatre]

Hello Sandeep,

Thank you for info, actually this is brand new config only i created it day before yesterday from scratch.

But surprisingly now dotradio interfaces are up.

Thanks a lot for your help, not sure what exactly worked.

[Pranav Mhatre]

Hello Sandeep,

I am still bit confused about few stuff -

1.use of Bridge group under dotradio and subinterfaces.

2. Under which interfaces we should create bridge group

3. Which VLAN we should map with SSID.

I got this questions after referring above link and configuration which I have implemented so far in APs.

Please find 1 sample config of AP.

[Sandeep Choudhary]

Hi,

1.use of Bridge group under dot-radio and sub interfaces.

Native vlan then bridge group 1, for others vlan use the same vlan number as brdige group number.

2. Under which interfaces we should create bridge group

under Radio interface (dot11 radio 0 , radio1, Ethernet interface)

3. Which VLAN we should map with SSID.

VLAN which need to used for that ssid.

Regards

Dont forget to rate helpful posts

[Pranav Mhatre]

Hello Sandeep,

Thank you for information. Still some points are not clear.

 As shared in config I have mapped SSID with VLAN 687 as on core switch this VLAN is defined for this SSID.

but at switch port end I have defined VLAN 170 as NATIVE VLAN with Bridge group 1.

1. What is purpose of creating Bridge Group, Do we have to create Bridg group when Autonomous AP is acting as a Root?

2. Any specific reason why we have to create bridge group one only for NATIVE VLAN? and for rest any bridge group ID works?

3. And In my configuration is it mandatory to create bridge group under subinterface for VLAN 687, I have not configured IP of VLAN 687 on my AP. or is it ok just to create subinterfaces of VLAN 687 and define encapsulation dat1Q?

4. Why we have to create subinterface, Does it have same purpose like Router on stick, Where we create multiple subinterfaces as per multiple VLANs on Router?

[Pranav Mhatre]

Hello Sandeep,

It would be great if you could share your expertise.