1310 Non-Root Bridge Accessing Different Subnets

From this non-root 1310 bridge, we are connecting to an old BR500 root bridge via wireless.
Clients inside the non-root bridge are able to access devices anywhere on the subnet (servers, workstations, etc.) via the bridge (wireless connection) with no problems. But, these clients cannot access the default gateway of the subnet or pass through the router (I can't even ping the default gateway router interface from the 1310 bridge; yet from the bridge, I can ping anything else on the same subnet).
Of course, clients on the wired LAN are able to browse the Internet, etc. -- it is only clients behind this bridge that cannot seem to "get out" so to speak.
This is a small LAN -- so everything is VLAN1 with a router at the boundary.
I have even ran a "sh ip arp" on the 1310 to ensure that a MAC entry is in the table for the default gateway IP, and it is there.
Any ideas?

Make sure there is no access list confiugred on the router blocking the access. Save the configurations and restart the bridge .

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1310 Root with two non-root bridges

I have a Cisco 1310 root bridge and a 1310 non-root bridge . it worked fine for a year, I then installed one more 1310 as a non-root bridge now I?m seeing both of my non-root bridges dropping offline more and more. I checked my first non-root bridge today and the radio is down and I can?t seem to bring it back up. I have recently upgraded the tar to see if that would fix the problem. This problem started when I added my second non-root bridge. Did I miss some setting or something

Make sure the spanning tree protocol is disabled on Vlan interfaces

1310 Root Bridge will not Authenticate with 350 Non Root Bridge

I've exhausted myself solving this issue.
I have a 1310 set as a root bridge using WEPS. I have a 350 set as a non root bridge/without clients, also using WEPS (they both use the same SSID)
The 350 will not authenticate to the 1310. After doing a Carrier Busy Test, it is clear the 350 see's the 1310 with signal strengh of 100 percent.
(I have a test lab setup in my office)
If I make the 350 the Root Bridge and the 1310 the Non Root, The 1310 will authenticate to the 350.
I hoping someone else has seen this problem and can enlighten me.
Thank you.

I have successfully configured a 1310 Bridge as a Root Bridge and a BR350 Bridge and a Non Root Bridge/with Clients. I also had to force the 1310 to operate at 11MB only.
As soon as I make the BR350 Bridge a Non Root Bridge/without Clients, the authentication is dropped between the two.
I was hoping I could transition to the 1310 one unit at a time since I have over a dozen 350's to replace.

Aironet 1262N - Access Point behind Non-Root Bridge possible?

Hi,
I want to connect two buildings. Let's call them Building A (main) and Building B.
„A“ is the main building and provides a wired LAN to an AAA server (192.168.1.2) and the WAN gateway (192.168.1.1).
There I placed a 1262N with the IP 192.168.1.3 connected to the wired LAN and configured it as Root-Bridge. Let's call it AP01.
„B“ is a pretty large building and has a wired LAN from one end to the other end.
So I placed two 1262N there, each at one end.
The first 1262N is configured as non-root Bridge (AP02) and connects to the Root Bridge (AP01).
The IP address of AP02 is 192.168.1.4.
The second 1262N is configured as Access Point (AP03) and connects to the non-root Bridge (AP02) via the wired LAN.
The IP adress of AP03 is 192.168.1.5
My Questions:
1. Do I need tell AP02 about the AAA Server in Building A or acts AP01 like a AAA Proxy for AP02 because of it Root Bridge functionality?
2. How Do I tell AP03 that it should use AP02 as a gateway to building A?
I attached a diagram.

Hello Mr. Vogl,
Thank you for your question.
However, the Small Business Support Community is limited to Cisco Small Business Products, and the Aironet products are considered as a Enterprise level devices.
I recommend you to post this question on the on the correct forum, in order to get a better response.
You can move your post using the Actions panel on the right.
Best regards,
Diego Rodriguez
Cisco Small Business Community Engineer

Changing native VLAN on non-root bridges

I have quite a few 1310 Bridges setup in point to multipoint configuration with a root bridge with a sector antenna at the campus network and remote sites connecting in. I have multiple VLANs trunked onto one SSID, this allows for having multiple vlans in use at the remote site. The problem is I want to configure some remote site bridges with a different native vlan than the standard allowing me to plug the client directly into the injector and eliminate the need for a vlan aware switch. I have tried to configure the the "encapsulation dot1q VLAN# native" but this swaps the bridge group on the subinterface to a bridge-group 1 .
! Last configuration change at 01:23:08 UTC Tue Sep 15 2009 by Cisco
! NVRAM config last updated at 01:23:09 UTC Tue Sep 15 2009 by Cisco
version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
no aaa new-model
dot11 ssid Cisco-24
vlan 1
authentication open
authentication key-management wpa
guest-mode
infrastructure-ssid optional
wpa-psk ascii test
bridge irb
interface Dot11Radio0
no ip address
no ip route-cache
encryption mode ciphers aes-ccm tkip
encryption vlan 1 mode ciphers aes-ccm tkip
encryption vlan 901 mode ciphers aes-ccm tkip
encryption vlan 902 mode ciphers aes-ccm tkip
encryption vlan 904 mode ciphers aes-ccm tkip
ssid Cisco-24
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
station-role non-root bridge
interface Dot11Radio0.1
encapsulation dot1Q 1 native
no ip route-cache
bridge-group 1
bridge-group 1 spanning-disabled
interface Dot11Radio0.901
encapsulation dot1Q 901
no ip route-cache
bridge-group 255
bridge-group 255 spanning-disabled
interface Dot11Radio0.902
encapsulation dot1Q 902
no ip route-cache
bridge-group 254
bridge-group 254 spanning-disabled
interface Dot11Radio0.904
encapsulation dot1Q 904
no ip route-cache
bridge-group 253
bridge-group 253 spanning-disabled
interface FastEthernet0
no ip address
no ip route-cache
hold-queue 80 in
interface FastEthernet0.1
encapsulation dot1Q 1 native
no ip route-cache
bridge-group 1
bridge-group 1 spanning-disabled
interface FastEthernet0.901
encapsulation dot1Q 901
no ip route-cache
bridge-group 255
bridge-group 255 spanning-disabled
interface FastEthernet0.902
encapsulation dot1Q 902
no ip route-cache
bridge-group 254
bridge-group 254 spanning-disabled
interface FastEthernet0.904
encapsulation dot1Q 904
no ip route-cache
bridge-group 253
bridge-group 253 spanning-disabled
interface BVI1
ip address 10.0.0.100 255.255.255.0
no ip route-cache
ip default-gateway 10.0.0.1
ip http server
no ip http secure-server
ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag
snmp-server community misdept RO
bridge 1 route ip
line con 0
line vty 0 4
login local
end

Correct. As soon as you change it to 100, you will lose access to the devices since vlan 1 is used for management. To shorten the down time, you can create vlan 100 and all the SVIs on all switches ahead of time and than change it form 1 to 100 in a maintenance window.
HTH

Root-Bridge and Non-Root Bridge Support

I was wondering if the ISR Routers (Cisco 1811w) support the root-bridge and non-root-bridge feature. If not is there another device apart from the 1310 and 1410 bridges that support this feature?
Thank You,
VT

Hi VT,
The ISR AP supports both of these roles;
Access Point Link Role Flexibility
Access Point Link Role Flexibility allows access point radios to operate in a combination of radio roles,
such as access point root, bridge root (with or without clients), bridge nonroot (with or without clients).
This provides a more flexible deployment scheme to support the various applications requirement. Note
that the ISR AP does not support access point repeater and WGB.
Wireless Non-Root Bridge
The wireless non-root bridge allows the access point radio to operate as the remote node in a point to
point or point to multi-point network.
Wireless Root Bridge
The wireless root bridge role provides support for both point-to-point or point to multi-point bridging.
http://www.cisco.com/en/US/docs/ios/12_4/12_4x/release/notes/rn1800xj.html
Hope this helps!
Rob

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.

Aironet 1310 non-root with wireless clients

I have two 1310s. One set as a root-bridge with wireless clients, another as a non-root bridge with wireless clients. The wireless side of things is working fine, but I'm having trouble when I try to connect a windows work station to the non-root bridge via ethernet. I'm getting an IP address from the router attached to the root bridge via DHCP, and I am able to connect to the configuration page of both 1310 APs, but I'm not getting any internet connectivity. Have I misunderstood what 'non-root bridge with wireless clients' means? If not, is there an obvious problem which might cause the wireless clients to work fine, but interfere with a wired client? Thanks.

Thanks Seth,
It's good to know that this is how it is supposed to work. The thing that has me scratching my head is that the wireless clients are working fine from this bridge--it is only the client hooked up to the ethernet interface that is not getting out.
I'll take a look at the gateway settings and see what I can find. I appreciate the tip.

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

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...

340 bridge traffic between two non root bridges

I have a deployent with a 340 series bridge acting as root bridge and two 340 bridges acting as non-root remotes. The hosts hanging off the non-root bridges can communicate with the hosts hanging off the root bridge but i cannot get communication to work between hosts on the two non-root bridges. Is there some sort of split horizon type setting I need to configure on the root-bridge to allow traffic back out the radio interface.

There isn't anything in the bridges that would block traffic between the two sites. Is this one large subnet, or are there two subnets? If there are two, how are you routing between the two?
Can one non-root bridge ping the other non-root?

7920 associates to root bridge but not to non-root bridge

I have 7920s using open authentication with WEP128 cipher. I have two 1300 root AP's (with client support) and three non-root AP's (also client support) in the same lab area. The root AP's and non-Root AP's associate and link to each other no problem. However, the 7920's will only associate with the Root APs. If I power down the root APs, the 7920s show "no AP found". I've verified SSID and WEP128 keys. I've also noted that the root AP does have a channel specified under dot11radio0 but the non-roots do not. Do the 7920's just scan for any channel until it finds an association or do I need to specify a channel in the non-root bridges?
Thanks,
Mike.

With static WEP, the authentication is happening at the AP level. Will want to ensure non-root is associated to a root though otherwise the interface may be in "reset" state.
The 7920 will look at these 2 as individual APs regardless of channel. Non-roots should have the same channel as the root, otherwise will not be able to communicate.

Can one Root Bridge support multiple non-root bridges?

Hey gang,
I have a pretty simple question here I think
I have a wireless bridge currently setup to support a separate office building on our property about 200 yards away from the main building. The wireless bridge has been working great and was a much cheaper solution when compared to the cost of making a fiber drop to this building. The needs of our business have changed (go figure), to include a warehouse building also on the backside of the property. It's not feasible to run a cable between these two building either. So I need to create another wireless bridge to this back warehouse as well. My question is can I just use another non-root bridge to link to the root bridge already in place, or does each wireless bridge require one root bridge and one non-root bridge?
I have good LoS to both buildings from where the current root bridge is, so if two non-root bridges can talk to one root bridge I should be able to just an additional non-root bridge and be good to go. But if wireless bridges are meant to be a one to one setup, then I'll need to setup an additional root bridge to link to the new non-root bridge?
It seems like you should be able to have one root bridge link to multiple non-root bridges but I haven't been able to find any clear examples of this being done.
Thanks in advance for the help!

That was just too easy.
I copied the configuration from the working non-root bridge to my laptop. I changed out the ip address of the BVI interface. I uploaded the configuration to the new 1300 bridge. I plugged it in and pointed the yagi antenna in the general direction of the original root bridge and started pinging the new 1300. Success!
I'll use my spare 1300 to get service up and running in the warehouse by the end of the week and I'll just need to order one more 1300 to make sure I have spare on hand if needed.
Thanks again!

Root Bridge vs. Non-Root Bridge

Hi,
I want to understand the Root Bridge vs. the Non-Root Bidge when using Autonomous 1131 AP's on the same /24 network. Does that command matter in Autonomous? I have many devices working without issues on the same /24 network and all have the Root Bridge set,
Clearly confused...
Thanks,

The command is used on point to point links deployments
A non root bridge becomes a client and connect to another ap in order to do wireless bridging.
Sent from Cisco Technical Support iPhone App

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?

1310 Non-Root Bridge Accessing Different Subnets

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