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Posted by nordberg on July 25, 2006, 6:35 am
How on earth do you enable 802.11b? My 802.11g devices can find the router
just fine, but the 802.11b devices cannot. What gives?
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Posted by on July 25, 2006, 7:18 am
nordberg wrote:
> How on earth do you enable 802.11b? My 802.11g devices can find the router
> just fine, but the 802.11b devices cannot. What gives?
interface Dot11Radio0
no shut
no ip address
!
encryption mode ciphers tkip
!
ssid xxxxx
authentication open
authentication key-management wpa
wpa-psk ascii 7 01D
!
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
no dot11 extension aironet
The speed line MUST include the 802.11b rates, maybe
they are missed out.
I have been unable to figure out what the "basic" bit means.
It is critical though.
Unless you have exclusively cisco kit turn off the
"extension aironet" as is done here too.
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Posted by nordberg on July 25, 2006, 8:23 am
> interface Dot11Radio0
> no shut
> no ip address
> !
> encryption mode ciphers tkip
> !
> ssid xxxxx
> authentication open
> authentication key-management wpa
> wpa-psk ascii 7 01D
> !
> 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
> no dot11 extension aironet
> The speed line MUST include the 802.11b rates, maybe
> they are missed out.
> I have been unable to figure out what the "basic" bit means.
> It is critical though.
> Unless you have exclusively cisco kit turn off the
> "extension aironet" as is done here too.
Many thanks. I tried what you suggested, but I am still not able to see the
router from .11b clients.
interface Dot11Radio0
Radio ATHEROS AR5213, Address 0016.9cab.8ed0, BBlock version 0.01, Software
vers
ion 3.00.0
Serial number:
Carrier Set: EMEA (EU )
Current Frequency: 2472 Mhz Channel 13
Allowed Frequencies: 2412(1) 2417(2) 2422(3) 2427(4) 2432(5) 2437(6) 2442(7)
244
7(8) 2452(9) 2457(10) 2462(11) 2467(12) 2472(13)
Current CCK Power: 20 dBm
Allowed CCK Power Levels: 7 10 13 15 17 20
Current OFDM Power: 17 dBm
Allowed OFDM Power Levels: 7 10 13 15 17
ERP settings: short slot time, protection mechanisms.
Neighbors in non-erp mode:
000c.3025.99fa
Current Rates: 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
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
Best Range Rates: basic-1.0 2.0 5.5 6.0 9.0 11.0 12.0 18.0 24.0 36.0 48.0
54.0
Best Throughput Rates: basic-1.0 basic-2.0 basic-5.5 basic-6.0 basic-9.0
basic-
11.0 basic-12.0 basic-18.0 basic-24.0 basic-36.0 basic-48.0 basic-54.0
Default Rates: 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
Radio Management (RM) Configuration: Mode 1 Temp Setting Disabled
Temp Settings: AP Tx Power 0 AP Tx Channel 0 Client Tx Power 0
Rates:
Perm Settings: AP Tx Power 0 AP Tx Channel 0 Client Tx Power 0
Rates:
Any other ideas? I read somewhere that OFDM interferes with .11b clients but
I can't find where to disable this....
Thanks,
Matt
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Posted by nordberg on July 26, 2006, 4:52 am
> interface Dot11Radio0
> no shut
> no ip address
> !
> encryption mode ciphers tkip
> !
> ssid xxxxx
> authentication open
> authentication key-management wpa
> wpa-psk ascii 7 01D
> !
> 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
> no dot11 extension aironet
> The speed line MUST include the 802.11b rates, maybe
> they are missed out.
> I have been unable to figure out what the "basic" bit means.
> It is critical though.
> Unless you have exclusively cisco kit turn off the
> "extension aironet" as is done here too.
Like for like config:
interface Dot11Radio0
no ip address
!
encryption key 1 size 128bit 7 BC48CE99C4E9B683819990D3C1A5 transmit-key
encryption mode wep mandatory
!
ssid *****
authentication open
!
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
no dot11 extension aironet
bridge-group 1
bridge-group 1 spanning-disabled
I'm not sure what "no shut" command does, but my router doesn't seem to like
it.
So, I can see this router from 802.11g devices just fine, but it is not
visible to 802.11b devices at all.
Desperately need some pointers on this.
TIA
Matt
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Posted by on July 26, 2006, 7:11 am
nordberg wrote:
> Like for like config:
> interface Dot11Radio0
> no ip address
> !
> encryption key 1 size 128bit 7 BC48CE99C4E9B683819990D3C1A5 transmit-key
> encryption mode wep mandatory
> !
> ssid *****
> authentication open
> !
> 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
> no dot11 extension aironet
> bridge-group 1
> bridge-group 1 spanning-disabled
> I'm not sure what "no shut" command does, but my router doesn't seem to like
> it.
> So, I can see this router from 802.11g devices just fine, but it is not
> visible to 802.11b devices at all.
OK. I tried that here and mine does not work either.
May get a chance to investigate later.
no shut takes the interface OUT of the Administratively down state.
Cisco is a bit weird, but nice too, so called "default" states do not
show
when yuo do a show runn.
If you instead do a shut then you wil see "shutdown"
in the inteface config.
Then you "no shut" to remove it.
Many commands are like this, you have to get to know them.
There is of course the OTHER default.
THat is the one that you get when you reset to factory default.
i.e. "write erase" is the (possibly no longer recommended?)
command that I use for this.
Some commands also appear in the config no matter what their state.
This sounds really crap I guess but it is OK once you get the idea and
the benefit is that the config file is shortened.
IIRC some platforms have a "show runn all" that may show
the defaults too. Don't think that I have ever tried it.
With traditional routers ALL interfaces are shut by factory default.
This is for safety.
With switches they all are no shut by default.
This is for convenience.
With 877, half and half, switch and router, some are shut
and some are not?
This is partly due to the need for consumer level users
to have a Power-up-and-use-Web-Browser interface.
For professional users having all interfaces shut is
what they want.
When considering that this may be unnecessarily confusing
consider how many platforms that carry out how many
different functions that cisco have made and do make that have
a substantially identical command line interface.
Once you hack the 877 you are then able to drive
almost any switch or router that they make or have made.
Please don't bother listing the exceptions for my benefit.
By all means list them for Nordberg's.
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> just fine, but the 802.11b devices cannot. What gives?