1242 Root or Non-Root Bridge

Greetings,
I have a small network that uses 1242 APs for clients machines. Our wired WAN link can be unreliable, so I would like to configure one of the 1242s as a bridge and connect it to one of the many wireless networks we have in our neighborhood.
I understand the 1242 APs can also operate in a bridge mode that could allow us to connect our network to one of these other wireless LANs. A couple of questions:
-Does the remote WLAN have to be a compatible cisco device in order for the 1242 to be able to bridge successfully?
-Which 'Role in Radio Network' do I choose for our 1242?
-How do I see what the SSIDs of the remote WLANS are and enter the relevant passwords (WEP, WPA, 802.1x, or WPA2)
-If this is not possible, what is the right device to use to connect our LAN to a remote WLAN without being able to control the hardware at 'both' ends of the bridge.
TIA

Can you please provide me with a network topology of what it is you would like to achieve. If you want the radio interfaces to associate to one another, then it is recommended to have them on the same channel, but for roaming instances, it is recommended that you have then at least 5 channels apart on the g radio so as to avoid any interference.
The 802.11A radios on the APs would be configured as bridges (one as
a "root" and the other two as "non-root") and the 802.11G radios
would service clients. Only one of the APs would require wired
connectivity in this scenario, as long as all of the APs are
communicating to each other on the 802.11A side. An important
consideration is that the 802.11A radios that are configured as "non-
root bridges" need only to communicate with the 802.11A radio that is
configured as the "root bridge". It is not necessary for the "non-
root bridges" to see each other. However, it is imperative that the
802.11A radio that is configured as the "root bridge" be able to
communicate with BOTH of the 802.11A "non-root" bridges. Therefore,
the antennas you choose for the devices is important.

Similar Messages

1242 as Root and Non Root

Hi Everyone,
I am setting up pair of 1242 APs as Root and Non-Root bridge, i am not able to find the Install Mode on the 1242 AP while setting the Non Root for Best signal.
any help will be appreciated.
HM

Hi HM,
AFAIK, we do not have the INSATALL mode on the 1242 AP if we are using it as ROOT and NONROOT.. this is available only on 1310 bridge or 1410 bridges.. not on 1242AP..
lemme know if this answered your question..
Regards
Surendra
====
Please dont forget to rate the posts which answered your question and mark it as answered or was helpfull

NON-ROOT TO NON-ROOT ASSOCIATION??

Hi,
I have one AIR-AP1242AG-A-K9, and two AIR-AP1242AG-N-K9. I have already configure them to work as bridge.
Root Bridge with wireless-clients ----------->     1   AIR-AP1242AG-N-K9
Non-Root Bridge1 with wireless-clients --->      1   AIR-AP1242AG-N-K9
Non-Root Bridge2 with wireless-clients ---->      1   AIR-AP1242AG-A-K9
I notice after reseting the root bridge or one of the non-root bridges that when I type the command "sh DOt11 associations" the results shows that there is an associatiation between the 2 Non-Root bridge. When this happend the connection of the clients associated to this APs is very unstable.
as far as I know the association is just between Root and Non-Root bridges.
I don´t know why this happend.
In order to avoid this I disable in one of the non-root bridge (AIR-AP1242AG-A-K9) the option "Force Infrastructure Device to associate only...."
Cisco's Docs show an example of config when there is one root bridge and one non-root bridge but in my scenario I have 2 non-root bridge and one root bridge.
I would like to know if the config for my scenario must be different from the simple scenario (1 root and 1 non-root).
I hope any of you can help me.
Regards

Hi Scott,
Thanks for your recommendations.
The mac-address authentication option you recommend is the option shown as "Root Parent MAC 1" ,"Root Parent MAC 2 ....." on Setting---> Network interface???
For root bridge , I should write down the MAC addres of the non-root bridge1 on Root Parent MAC 1 field and on the field of Root Parent MAC 2, the MAC of the non-root bridge2 ?? , am I right?
and for the non-root bridges I should just set on Root Parent MAC 1 just the MAC address of the root bridge???
Regards,

Network Design - Root and Non root bridges

Hi,
We have a network set-up as the below image. Where the switches have STP enable to handle the muliple paths for the data to flow.
What I would like to know is should the 2 bridges plugged into the same switch e.g Switch A (Bridge A and Bridge B) both be root bridges and (Bridge C and Bridge D) both be non root.
Or should for example, Bridge A be a root and Bridge C a non root and Bridge B a non root and Bridge D the root?
Similarly with the rest of the other bridges E, F, G and H
Thanks

Disclaimer
The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
Liability Disclaimer
In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
Posting
Ah, I think I understand. So the wireless bridges are "transparent" to the rest of the network. They just convert wired to wireless and back again.
If I have that right, we can ignore them and just consider your switches.
In that case, it appears you have two L2 loops, those formed by the dual paths between switches A and B and between switches C and D. From a topology standpoint, it doesn't seem to matter what switch you select as root and secondary root. However, as switches B and C are the interior switches, I would suggest those as your root and secondary root switches.

Can you change smcwebserver login from root to non-root user

I've tried digging in various place and haven't found any luck with this. Is it possible to change that default login from the system root to another user?

Not sure about the first part.
But i think you can fix the timing on the reader using this patch.
http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=lenovo&lndocid=MIGR-67245
Have a try not sure whether it will fix your problem.

1300 Root-Bridge and Non-Root Bridge setup

I have two 1300s that I am trying to set up as Root Bridge and Non-Root Bridge, however, everytime i specify one of them as a Non-Root bridge, the radio0 interface becomes disabled. The only option that i am able to pick that enables the radio0 interface is "Access Point", which is what am trying to avoid it being.
Can anybody help me figure out how to go about this

A non-root's radio will show as disabled if it cannot find the root AP to associate to. Make sure you have "infrastructure-ssid" configured under the SSID on both the root and non-root bridges. Also depending on code versions you may have to configure the distance command under the radio interface on the root.

1230AG non-root bridge not associating

Hello everyone,
I am new at setting up root and non-root bridges. I am trying to set-up three 1230ag devices.
One as the root and the othe two as non-root, I copied the config txt from the root and
copied that into the two I am going to use for the non-root. That way the ssid's are the
same. When I set the role to non-root the radio is not enabled and I get a message saying
Interface Dot11Radio0,cannot associate:No Response
Does any know what I am doing wrong, and how to fix it
Thanks

The radio interface will go down in response to being configured as a non-root bridge, so that much is working. But there must be a configuration error if it won't associate. Can you post the configs so we can review them?
Are the bridges mounted, or are they on your desk?

Cisco Aironet 1250 - How to bridge two AP's and get Non-root to talk to Root AP

/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Table Normal";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-priority:99;
mso-style-qformat:yes;
mso-style-parent:"";
mso-padding-alt:0in 5.4pt 0in 5.4pt;
mso-para-margin-top:0in;
mso-para-margin-right:0in;
mso-para-margin-bottom:10.0pt;
mso-para-margin-left:0in;
line-height:115%;
mso-pagination:widow-orphan;
font-size:11.0pt;
font-family:"Calibri","sans-serif";
mso-ascii-font-family:Calibri;
mso-ascii-theme-font:minor-latin;
mso-hansi-font-family:Calibri;
mso-hansi-theme-font:minor-latin;
mso-bidi-font-family:Arial;
mso-bidi-theme-font:minor-bidi;}
      I have two buidlings acroos the street from each other. I have two Cisco Aironet 1250 wireless AP's with the first one going in the main building with network backbone. The Second AP goes across the street with the other wired network segment. Both AP's have long range antenas 2.4 GHZ on top of each building. I have configured the 1st one as the Root Bridge. The one across the street is configured as non-root bridge. I have both AP's configured with the same WEP key and also with the same SSID name with both set to broadcast it.   I am still unsure and confused as to how I get the non-root bridge to talk to and use the root bridge to get on the main network.
        1- It’s main to use the Root parent Mac address.
        2- Is there another config that I am missing to get the signal?
Note: I still not getting any signal from the root although distance between root and non-root is 330m
My root antenna is AIR-ANT24120 and non-root antenna is AIR-ANT1949 and attached files is my configuration files
Thank you.

1. How are the AIR-ANT24120 and the AIR-ANT1949 installed?
the AIR-ANT24120 is connected virtically on tower far 11m from the earth and AIR-ANT1949 is connected horizontally on tower far 10m from the earth
2. What is the distance between both APs?
350 m
3. Do you have clear line-of-sight between the two?
there is one tanker in the middle between them but it's far 7m from the earth
4. Is the two APs properly aligned?
i think yes and changed the aligned many times without any news (I don't have any tools for alignment)
5. Which point are the antennas connected to? Primary, Secondary or middle?
I tried in the primary and secondary but never tried the middle antenna
Thanks

Cannot Associate 1532 Bridges in Non-Root role

Hello,
Can someone please tell me what I am missing and why I cannot bring up 2 bridges in "Root" and "Non-Root" roles?
I have similarly configured bridges in a Root / Non-Root role several times before with older AP's and never had any issues... although it was always just 1 SSID, 1 Vlan, and no subinterfaces...
The only way I was able to get these 2 bridges to associate was to put the Non-Root bridge into a Workgroup Bridge role and then *BANG* everything worked perfectly. I tried getting rid of the authentication and tried using the Parent command but neither helped. Prior to entering Station Role Workgroup Bridge, the only message I would receive was showing on the Non-Root side and all it said was:
*Mar 1 07:27:13.867 GMT: %DOT11-4-CANT_ASSOC: Interface Dot11Radio0, cannot associate: No Response
*Mar 1 07:27:28.891 GMT: %DOT11-4-CANT_ASSOC: Interface Dot11Radio0, cannot associate: Rcvd response from 544a.0005.8030 channel 3 2815
What am I missing or what have I incorrectly configured on my Non-Root config?
Bridges are both 1532i with the Autonomous Image 15.2(4)JB5
Attached are the configs prior to changing the Non-Root AP to a station role of Workgroup Bridge.
Thanks!

Hi,
This should work with multiple sub-interfaces.
Few more suggestions
1. Remove this from your BRIDGE SSID & check
mobility network-id 1
This is only require when you configure L3 roaming & WDS in place.
http://www.cisco.com/c/en/us/support/docs/wireless/aironet-1200-series/8103-ap-faq.html
2. Try to set WPA version 2 & only AES encryption.
Also try to Associate your Bridges using Open Auth first (as shown in my blog post initial section) & then try to add security.
HTH
Rasika
**** Pls rate all useful responses ****

Clients no received ip address from Non-root APs

I have 3 AP, one roor and Non-root. The Root AP is connected to ADSL modem which provide DHCP.
the clients form root AP received IP without problem, but whe I try to associate to non-root AP I can not receive ip from DHCP.
What it could be the reason???
I hope any of you can help me...
regards
ROOT#sh cdp nei
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
                  S - Switch, H - Host, I - IGMP, r - Repeater
Device ID        Local Intrfce     Holdtme    Capability Platform Port ID
NON-ROOT1        Vi-Dot11 0         177          T I      AIR-AP124 Vi-Dot11 0
NON-ROOT2        Vi-Dot11 1         145          T I      AIR-AP124 Vi-Dot11 0
ROOT#
ROOT#
ROOT#sh dot11 associations
802.11 Client Stations on Dot11Radio0:
SSID [enlace] :
MAC Address    IP address      Device        Name            Parent         Stat
e
0021.00d6.6459 169.254.32.107 Br-client     -               003a.9924.2ba0 Asso
c
0025.9cab.3073 0.0.0.0         Br-client     -               003a.9933.e070 Asso
c
003a.9924.2ba0 192.168.1.249   bridge        NON-ROOT2       self           Asso
c
003a.9933.e070 192.168.1.251   bridge        NON-ROOT1       self           Asso
c
58b0.3568.372c 169.254.68.25   Br-client     -               003a.9924.2ba0 Asso
c
c417.fe02.645f 192.168.1.64    Br-client     -               003a.9924.2ba0 Asso
c
d8a2.5e49.5a83 0.0.0.0         Br-client     -               003a.9924.2ba0 Asso
c
ROOT#
ROOT#sh ver
Cisco IOS Software, C1240 Software (C1240-K9W7-M), Version 12.4(21a)JA1, RELEASE
SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2009 by Cisco Systems, Inc.
Compiled Wed 16-Sep-09 19:06 by prod_rel_team

Hi Surendra,
I set static IP on interface BVI1 on non-root1 and non-root2, also root-bridge I can ping to both of them, in fact I access to them via web and telnet.
I also set ip helper-address on interface Dot11Radio0 in all APs root and non-root..
My mind is about to crash...I don´t know what else to try.
thanks for your time.

B1400 non-root does not display/monitor temperature

I have root and non-root B1410 bridges. The root bridges will show temperatures in the GUI. The non-root do not. They show a WARNING: No Reading temperature monitoring is at 'INITIALIZE' state. What does this mean? I have not been able to find any reference. Other than root/non-root parms, I see nothing that is different in these configurations. They are in remote locations and temperature reporting is needed.

Thanks for the response. After some digging I found this BUG.
It says fixed in 12.3(8)JA
BUT I CANNOT FIND 12.3(8)JA for the 1400....
BUG ID: CSCsb63034
Bug Details
Headline show env No Reading Temperature monitoring is at INITIALIZE non-root
Product br1410
Feature OTHERS Duplicate of
Severity 3 Severity help Status Verified Status help
First Found-in Version 12.3(4)JA First Fixed-in Version 12.3(8)JA Version help
Release Notes
Symptom:
Non-root bridge running 12.3.4.JA & greater 'show env' output sometimes shows:
Environmental Statistics
Environmental status as of 09:47:18 S Aug 8 2005
Data is 55 second(s) old, refresh in 5 second(s)
WARNING: No Reading temperature monitoring is at 'INITIALIZE' state.
No Reading temperature is at 0 (C)
Workaround:
None but this appears to be cosmetic.
-pat

Non-root bridge association problem

I have an installation using Cisco 1242 Access Points (IOS) as bridges
in 5Ghz band, and as AP in 2,4 GHz band. Sometimes I get problems
with the non-root bridges, after mains outage, they will not
associate to the root bridge. Command "dot11 do 1 carrier busy"
issued to the non-root bridge helps, but sometimes I have to use it
several times. Have anybody any idea about possible cause?
Thanks

Hi Frank,
I think I have found the reason of my troubles. It is the following configuration command:
(interface Dot11Radio1)
world-mode dot11d country CZ outdoor
which is not only not-needed on the non-root bridge AP, it prevents associating the non-root bridge to the root-bridge AP. It does not cause the troubles on each root non-root couple. The troubles are more frequent with IOS version 12.3(11)JA or 12.3(8)JEA than with 12.3(8)JA2.
Regards
Frantisek Opravil

Wireless Root Bridge - Non Root Bridge

I've been reading a lot about bridge configuration for wireless AP but i cannot make it work the following scenario:
PC -- ethernet port --> Non-Root-Bridge -----------> Root Bridge ---------> Switch
vlan111                     native 18 - vlan111           native 18 - vlan111      vlan native 18,111
Its pinging fine between switch and Non-Root. But when i put vlan111 on Non-Root the two AP's stop responding to the network.
What am i doing wrong? Plz i need some help!! I have two 1242.
------------------------ Root Config ----------------------
dot11 syslog
dot11 vlan-name JGS111 vlan 111
dot11 vlan-name JGS18 vlan 18
dot11 ssid WGB
   vlan 18
   authentication open
   guest-mode
   infrastructure-ssid
username Cisco password 7 047802150C2E
bridge irb
interface Dot11Radio0
no ip address
no ip route-cache
ssid WGB
station-role root bridge
infrastructure-client
interface Dot11Radio0.18
encapsulation dot1Q 18 native
no ip route-cache
bridge-group 1
bridge-group 1 spanning-disabled
interface Dot11Radio0.111
encapsulation dot1Q 111
no ip route-cache
bridge-group 111
bridge-group 111 spanning-disabled
interface Dot11Radio1
no ip address
no ip route-cache
shutdown
dfs band 3 block
channel dfs
station-role root
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
bridge-group 1 spanning-disabled
interface FastEthernet0
no ip address
no ip route-cache
duplex auto
speed auto
interface FastEthernet0.18
encapsulation dot1Q 18 native
no ip route-cache
bridge-group 1
bridge-group 1 spanning-disabled
interface FastEthernet0.111
encapsulation dot1Q 111
no ip route-cache
bridge-group 111
bridge-group 111 spanning-disabled
interface BVI1
ip address 10.1.8.50 255.255.255.0
no ip route-cache
ip default-gateway 10.1.8.254
ip http server
no ip http secure-server
ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag
bridge 1 route ip
------------- Non-Root-Bridge -------------
ot11 syslog
dot11 vlan-name JGS111 vlan 111
dot11 vlan-name JGS18 vlan 18
dot11 ssid WGB
   vlan 18
   authentication open
   guest-mode
   infrastructure-ssid
username Cisco password 7 14341B180F0B
bridge irb
interface Dot11Radio0
no ip address
no ip route-cache
ssid WGB
station-role non-root bridge
infrastructure-client
interface Dot11Radio0.18
encapsulation dot1Q 18 native
no ip route-cache
bridge-group 1
bridge-group 1 spanning-disabled
interface Dot11Radio0.111
encapsulation dot1Q 111
no ip route-cache
bridge-group 111
bridge-group 111 spanning-disabled
interface Dot11Radio1
no ip address
no ip route-cache
shutdown
dfs band 3 block
channel dfs
station-role root
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
bridge-group 1 spanning-disabled
interface FastEthernet0
no ip address
no ip route-cache
duplex auto
speed auto
interface FastEthernet0.18
encapsulation dot1Q 18 native
no ip route-cache
bridge-group 1
bridge-group 1 spanning-disabled
interface FastEthernet0.111
encapsulation dot1Q 111
no ip route-cache
bridge-group 111
bridge-group 111 spanning-disabled
interface BVI1
ip address 10.1.8.51 255.255.255.0
no ip route-cache
ip default-gateway 10.1.8.254
ip http server
no ip http secure-server
ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag
bridge 1 route ip

Try this:
interface Dot11Radio0.18
encapsulation dot1Q 18 native
no ip route-cache
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
bridge-group 1 spanning-disabled
interface Dot11Radio0.111
encapsulation dot1Q 111
no ip route-cache
bridge-group 111
bridge-group 111 subscriber-loop-control
bridge-group 111 block-unknown-source
no bridge-group 111 source-learning
no bridge-group 111 unicast-flooding
bridge-group 111 spanning-disabled
interface FastEthernet0.18
encapsulation dot1Q 10 native
no ip route-cache
bridge-group 1
no bridge-group 1 source-learning
bridge-group 1 spanning-disabled
interface FastEthernet0.111
encapsulation dot1Q 111
no ip route-cache
bridge-group 111
no bridge-group 111 source-learning
bridge-group 111 spanning-disabled
Make sure your switchort is setup similar
interface GigabitEthernet0/7
description 1242 AP Bridge
switchport trunk encapsulation dot1q
switchport trunk native vlan 18
switchport trunk allowed vlans 18,111
switchport mode trunk
Thanks,
Scott
Help out other by using the rating system and marking answered questions as "Answered"

1250 802.11N series in root/non-root bridge mode

Using Yagi's, low loss cable, antenna outside, AP inside.
When operating autonomous 1250 series in root/non-root bridge mode, can I use 802.11N radios? Is it supported?
Or would it be better to use 1242's? This is for a customer, no time for testing, need rock solid design, in and out configuration...

@leolaohoo -
I was just asking for a definitive answer, weather its affirmative or negative, is there a benefit to using the 1252 over the 1242 giving the cost of each, since as you said the 802.11N can not be used to bridge, than I would say a 1242 is better fit for the AP bridge of 350', clear line of site over the 1252.

Root Bridge+Clients with Non-Root Bridge+Clients Howto?

Hi, i have two 1242AG access points. I would like to setup a bridge between the two to bridge ethernet lan segments, furthermore i would like to be able to connect wireless clients to either of the access points so i can get maximum range.
I did what i thought was correct, created the first access point a 'root bridge with wireless clients', and assigned the ssid.
I set the second access point to 'non-root bridge with wireless clients' amd set the same ssid as the first access point.
I cant even get the root bridge to work, i turn it on, it brings the radio interface up but i cannot connect with my wireless clients, infact i cannot even see the SSID!
Do i need to 'Set Single Guest Mode SSID' for the radios? What does that command do?
Any ideas? A link to config example would be much apreciated.
Thanks,
Chris

Hi, first, thanks for the help.
Second, this incompatibility is only valid
for RFC1042 or it is valid for 802.11g?
Third, If I configure my 1242 as Acess Point, and the 340 series as Client or Brigde_only, they should not talk too?
Sorry for the bad english...

1242 Root or Non-Root Bridge

Similar Messages

Maybe you are looking for