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Cisco AP Dot11Radio0 interface is up but SSID is not broadcasted

Robbert100
Level 1
Level 1

‎09-07-2018 08:21 PM - edited ‎07-05-2021 09:09 AM

Dear Cisco community member.

 

I have configured the AIR-RM1252G-E-K9 access point (IOS 12.4(10b)JDA3)

 

Even thought the Interfaces are up I still do not see any service on the wireless media (no SSID or any kind of service on the 2.4 Ghz) 

 

Any help is appreciated. 

 

See attached running config of the AP.

 

For the information interface dotradio1 (the 5Ghz) works (broadcasts the SSID) clinents join and operate normally. It is only dotradio 0 that does not work. (both modules (radios) have correct antennas connected.

 

Regards,

Robert

 

 

 

 

 

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omz
VIP Alumni
VIP Alumni

‎09-08-2018 12:53 AM

sh ip int brief

sh interfaces

sh ap summary

sh ap config 802.11a summary

Any messages logged on AP console?

How is the AP powered? Could be not enough power.

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Robbert100
Level 1
Level 1
In response to omz

‎09-08-2018 01:49 AM - edited ‎09-08-2018 01:56 AM

Thanks for reply,

 

Some of the information is attached to the post.

 

Adding all below requested here too:

 

1) sh ip int brief

 

Interface IP-Address OK? Method Status Protocol
BVI1 192.168.128.253 YES NVRAM up up
Dot11Radio0 unassigned YES NVRAM up up
Dot11Radio0.1 unassigned YES unset up up
Dot11Radio0.16 unassigned YES unset up up
Dot11Radio0.100 unassigned YES unset up up
Dot11Radio1 unassigned YES NVRAM up up
Dot11Radio1.1 unassigned YES unset up up
Dot11Radio1.16 unassigned YES unset up up
Dot11Radio1.100 unassigned YES unset up up
GigabitEthernet0 unassigned YES NVRAM up up
GigabitEthernet0.16 unassigned YES unset up up
GigabitEthernet0.100 unassigned YES unset up up

-----------------------------

 

2) Show interfaces

 

AP#sh interfaces
BVI1 is up, line protocol is up
  Hardware is BVI, address is 4055.39dd.0444 (bia 6400.f187.da80)
  Internet address is 192.168.128.253/28
  MTU 1500 bytes, BW 54000 Kbit, DLY 5000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 1000 bits/sec, 1 packets/sec
     32 packets input, 1920 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     360 packets output, 44720 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 output buffer failures, 0 output buffers swapped out
Dot11Radio0 is up, line protocol is up
  Hardware is 802.11N 2.4Ghz Radio, address is 6400.f187.da80 (bia 6400.f187.da80)
  MTU 1500 bytes, BW 54000 Kbit, DLY 1000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output 00:00:01, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/1677/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/30 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 input packets with dribble condition detected
     0 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 3 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out
Dot11Radio0.1 is up, line protocol is up
  Hardware is 802.11N 2.4Ghz Radio, address is 6400.f187.da80 (bia 6400.f187.da80)
  MTU 1500 bytes, BW 54000 Kbit, DLY 1000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation 802.1Q Virtual LAN, Vlan ID  1.
  ARP type: ARPA, ARP Timeout 04:00:00
  Last clearing of "show interface" counters never
Dot11Radio0.16 is up, line protocol is up
  Hardware is 802.11N 2.4Ghz Radio, address is 6400.f187.da80 (bia 6400.f187.da80)
  MTU 1500 bytes, BW 54000 Kbit, DLY 1000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation 802.1Q Virtual LAN, Vlan ID  16.
  ARP type: ARPA, ARP Timeout 04:00:00
  Last clearing of "show interface" counters never
Dot11Radio0.100 is up, line protocol is up
  Hardware is 802.11N 2.4Ghz Radio, address is 6400.f187.da80 (bia 6400.f187.da80)
  MTU 1500 bytes, BW 54000 Kbit, DLY 1000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation 802.1Q Virtual LAN, Vlan ID  100.
  ARP type: ARPA, ARP Timeout 04:00:00
  Last clearing of "show interface" counters never
Dot11Radio1 is up, line protocol is up
  Hardware is 802.11N 5Ghz Radio, address is 6400.f141.6620 (bia 6400.f141.6620)
  MTU 1500 bytes, BW 54000 Kbit, DLY 1000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/1677/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/30 (size/max)
  5 minute input rate 2000 bits/sec, 3 packets/sec
  5 minute output rate 43000 bits/sec, 7 packets/sec
     12377 packets input, 2504152 bytes, 0 no buffer
     Received 352 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 input packets with dribble condition detected
     15706 packets output, 9776925 bytes, 0 underruns
     23 output errors, 0 collisions, 3 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out
Dot11Radio1.1 is up, line protocol is up
  Hardware is 802.11N 5Ghz Radio, address is 6400.f141.6620 (bia 6400.f141.6620)
  MTU 1500 bytes, BW 54000 Kbit, DLY 1000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation 802.1Q Virtual LAN, Vlan ID  1.
  ARP type: ARPA, ARP Timeout 04:00:00
  Last clearing of "show interface" counters never
Dot11Radio1.16 is up, line protocol is up
  Hardware is 802.11N 5Ghz Radio, address is 6400.f141.6620 (bia 6400.f141.6620)
  MTU 1500 bytes, BW 54000 Kbit, DLY 1000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation 802.1Q Virtual LAN, Vlan ID  16.
  ARP type: ARPA, ARP Timeout 04:00:00
  Last clearing of "show interface" counters never
Dot11Radio1.100 is up, line protocol is up
  Hardware is 802.11N 5Ghz Radio, address is 6400.f141.6620 (bia 6400.f141.6620)
  MTU 1500 bytes, BW 54000 Kbit, DLY 1000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation 802.1Q Virtual LAN, Vlan ID  100.
  ARP type: ARPA, ARP Timeout 04:00:00
  Last clearing of "show interface" counters never
GigabitEthernet0 is up, line protocol is up
  Hardware is PowerPC 8349 Ethernet, address is 4055.39dd.0444 (bia 4055.39dd.0444)
  MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation 802.1Q Virtual LAN, Vlan ID  1., loopback not set
  Full-duplex, 100Mb/s, media type is T
  output flow-control is unsupported, input flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/1677/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 41000 bits/sec, 8 packets/sec
  5 minute output rate 4000 bits/sec, 4 packets/sec
     21103 packets input, 9858410 bytes, 0 no buffer
     Received 9152 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 0 multicast, 0 pause input
     0 input packets with dribble condition detected
     12179 packets output, 2569715 bytes, 0 underruns
     0 output errors, 0 collisions, 4 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out
GigabitEthernet0.16 is up, line protocol is up
  Hardware is PowerPC 8349 Ethernet, address is 4055.39dd.0444 (bia 4055.39dd.0444)
  MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation 802.1Q Virtual LAN, Vlan ID  16.
  ARP type: ARPA, ARP Timeout 04:00:00
  Last clearing of "show interface" counters never
GigabitEthernet0.100 is up, line protocol is up
  Hardware is PowerPC 8349 Ethernet, address is 4055.39dd.0444 (bia 4055.39dd.0444)
  MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation 802.1Q Virtual LAN, Vlan ID  100.
  ARP type: ARPA, ARP Timeout 04:00:00
  Last clearing of "show interface" counters never

 

 

---------------------------------------

 

3) sh ap summary

 

AP#sh ap summary

 

^ % Invalid input detected at '^' marker.

 

-----------------------------------------

 

4) sh ap config 802.11a summary

 

AP#sh ap config 802.11a summary ^ % Invalid input detected at '^' marker. --------------------------------------------

 

5) Any messages logged on AP console?

 

No - I do not see any messages regarding this radio (the AP behaves as if the service is running) (note 5 GHz works it is 2.4 Ghz that is not working)

-----------------------------------------------

6) How is the AP powered? Could be not enough power?

Currently I am using manufacturer supplied Power injector

 

Regards,

Robert

0 Helpful

Robbert100
Level 1
Level 1
In response to omz

‎09-08-2018 02:11 AM - edited ‎09-08-2018 02:14 AM

Thanks for the reply - please see the information attached to this reply

 

Regards,

Robert 

Preview file
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Rasika Nayanajith
VIP
VIP

‎09-08-2018 02:29 AM

Hi Rob,

Pls remove below under radio 0 interface & see

channel width 40-below

 

HTH

Rasika

*** Pls rate all useful responses ***

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Robbert100
Level 1
Level 1
In response to Rasika Nayanajith

‎09-08-2018 09:21 PM

Thanks for response Rasika,

 

I did remove the 

channel width 40-below   

 but no luck - still the same. No SSID or any service on 2.4GHz

 

Kind regards,

Robert

0 Helpful

Rasika Nayanajith
VIP
VIP
In response to Robbert100

‎09-10-2018 04:12 AM

Hi Rob,

 

I tested your config with one of  my test 1252 & it is working. I shut my 5GHz to test. Below are the config take from your .txt file & applied to my AP

 

hostname AAP

dot11 vlan-name HGI2 vlan 1
!
dot11 ssid HGI2
vlan 1
authentication open
authentication key-management wpa
mbssid guest-mode
wpa-psk ascii Cisco123
!
interface Dot11Radio0
no ip address
no ip route-cache
!
encryption vlan 1 mode ciphers aes-ccm tkip
!
ssid HGI2
!
mbssid
speed basic-1.0 basic-2.0 basic-5.5 basic-11.0 6.0 9.0 12.0 18.0 24.0 36.0 48.0 54.0
channel 2462
station-role root
no dot11 extension aironet
world-mode dot11d country GE indoor
!
interface Dot11Radio0.1
encapsulation dot1Q 1 native
bridge-group 1
!
interface Dot11Radio0.100
encapsulation dot1Q 100
bridge-group 100
!
interface GigabitEthernet0.100
encapsulation dot1Q 100
bridge-group 100
!
interface BVI1
ip address dhcp

 

I would suggest you to check your AP radio 0 status

 

AAP#show controllers dot11Radio 0
!
interface Dot11Radio0
Radio AIR-RM1252G, Base Address 5475.d03e.80b0, BBlock version 0.00, Software version 4.10.1
Serial number: FOC14154WS8
Unused dynamic SQRAM memory: 0x000032C4 (12 KB)
Unused dynamic SDRAM memory: 0x0008C070 (560 KB)
Number of supported simultaneous BSSID on Dot11Radio0: 16
Carrier Set: Americas (US) (-A)
Uniform Spreading Required: No
Configured Frequency: 2462 MHz Channel 11
Allowed Frequencies: 2412(1) 2417(2) 2422(3) 2427(4) 2432(5) 2437(6) 2442(7) 2447(8) 2452(9) 2457(10) 2462(11)
Listen Frequencies: 2412(1) 2417(2) 2422(3) 2427(4) 2432(5) 2437(6) 2442(7) 2447(8) 2452(9) 2457(10) 2462(11) 2467(12) 2472(13) 2484(14)
Beacon Flags: 0, Interface Flags 20105, Interface Events 0, Mode 9; Beacons are enabled; Probes are enabled
Configured Power: 20 dBm
Active power levels by rate
1.0 to 11.0 , 20 dBm
6.0 to m15-2 , 17 dBm, changed due to regulatory maximum
m16-2 to m23-2 , 0 dBm, changed due to regulatory maximum
m0-4 to m15-4 , 14 dBm, changed due to regulatory maximum
m16-4 to m23-4 , 0 dBm, changed due to regulatory maximum
6.0d to 54.0d , 17 dBm, changed due to regulatory maximum
m0b2 to m23b4 , 0 dBm, changed due to regulatory maximum
OffChnl Power: 20, Rate 1.0
Allowed Power Levels: -1 2 5 8 11 14 17 20
Allowed Client Power Levels: 2 5 8 11 14 17 20
Receive Antennas : right-a left-b middle-c
Transmit Antennas : right-a left-b, cck single, ofdm all
Antenna: external, Gain: Allowed 12, Reported 0, Configured 0, In Use 12
Active Rates: basic-1.0 basic-2.0 basic-5.5 basic-11.0 6.0 9.0 12.0 18.0 24.0 36.0 48.0 54.0
Current Rates: basic-1.0 basic-2.0 basic-5.5 basic-11.0 6.0 9.0 12.0 18.0 24.0 36.0 48.0 54.0
Allowed Rates: 1.0 2.0 5.5 6.0 9.0 11.0 12.0 18.0 24.0 36.0 48.0 54.0

 

 

HTH

Rasika

*** Pls rate all useful responses ***

 

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