Cisco 881w Wireless speed question

[louisbohls]

Is the max wireless speed on the cisco 881w 54mbps even though it has 802.11n hardware?  What about the 891w?

[Surendra BG]

Louis,

881W does support N speeds.. this needs extra configuration.. that is...

METHOD 1

========

THE SSID should be either OPEN AUTHENTICATION WITH NO ENCRYPTION WITH ALL MCS CHANNELS ENABLED.

OR

METHOD 2

==========

THE SSID SHOULD USE WPA-2 Enterprize or WPA-2 PSK and AES as the encrtption WITH ALL MCS CHANNELS ENABLED..

Here is the link to do it..

http://www.cisco.com/en/US/docs/routers/access/800/860-880-890/software/configuration/guide/wlan_ps380_TSD_Products_Configuration_Guide_Chapter.html

***** WPA - TKIP will not yeild N speeds..

Lemme know if this answered your question.

Regards

Surendra

===

Please dont forget to rate the posts which answered your question or was helpfull..

[prashant1986]

I only get 144Mbps instead of 270 +  on 881w router any thing I need to change, I have allready set my security at wap v2 AES

dot11 ssid Ownage

   vlan 1

   authentication open

   authentication key-management wpa version 2

   mbssid guest-mode

   wpa-psk ascii 7 03145A1F03032******

   information-element ssidl advertisement

interface Dot11Radio0

no ip address

no ip route-cache

!

encryption vlan 10 mode ciphers aes-ccm

!

encryption vlan 1 mode ciphers aes-ccm

!

broadcast-key vlan 1 change 10

!

!

ssid Ownage

!

ssid ***********

!

mbssid

speed  basic-1.0 2.0 5.5 11.0 6.0 9.0 12.0 18.0 24.0 36.0 48.0 54.0 m0. m1. m2.

m3. m4. m5. m6. m7. m8. m9. m10. m11. m12. m13. m14. m15.

channel width 40-above

channel 2462

station-role root

[Surendra BG]

Hi Prasanth,

With just G-Radio enabled, the maximum that we can get is around 144Mbps.. with A-Radio enabled we can get 270 or 300. I guess the speed what you are getting is pretty good using the G-Radio.

lemme know if this answered your question..

Regards

Surendra

====

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[prashant1986]

so how would I know if i am using G radio or A, is their a setting that I need to change or the hardware comes is build that way.

[Surendra BG]

the SSID are mapped to G-Radio from the snippet that you have posted..

Regards

Surendra

lemme know if this answered your question..

Regards
Surendra

====

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[prashant1986]

Do I have option to do this

ssid Ownage ==== Using Radio A/N  == 300Mbps   === Vlan 1

ssid Ownage 2 ==== Using Radio G === 54Mbps  ==== Vlan 10

Can i be able to seprate by vlan and radio type ?

[Surendra BG]

Hi,

VLAN mapping is for SSID not for Radio.. yes you can do that by mapping the SSID with Desired Radios..

lemme know if this answered your question..

Regards
Surendra
====
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[Surendra BG]

So your config should look like this..

ssid Ownage ==== Using Radio A/N  == 300Mbps   === Vlan 1

ssid Ownage 2 ==== Using Radio G === 54Mbps  ==== Vlan 10

en

conf t

dott11 ssid Ownage

vlan 1

auth open

auth key-ma wpa ver 2

wpa-psk ascii

guest-mode

end

en

conf t

int dot11 1

ssid Ownage

encryption vlan 1 mode ciphers aes-ccm

no shut

end

en

conf t

dott11 ssid Ownage 2

vlan 10

auth open

auth key-ma wpa

wpa-psk ascii

guest-mode

end

en

conf t

int dot11 0

ssid Ownage 2

encryption vlan 10 mode ciphers tkip

no shut

end

The above configuration will resolve your issue..

lemme know if this answered your question..

Regards
Surendra
====
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[Surendra BG]

Hi prashant,

It will great if you could reply to the post on the forum.. if i am not free some one will help you out by posting the answer.. and if you just have 1 radio then here is the config..

ssid Ownage ==== Using Radio G == 144 Mbps   === Vlan 1

ssid Ownage 2 ==== Using Radio G === 54Mbps  ==== Vlan 10

en

conf t

dott11 ssid Ownage

vlan 1

auth open

auth key-ma wpa ver 2

wpa-psk ascii

mbssid guest-mode

end

en

conf t

int dot11 0

mbssid

ssid Ownage

encryption vlan 1 mode ciphers aes-ccm

no shut

end

en

conf t

dott11 ssid Ownage 2

vlan 10

auth open

auth key-ma wpa

wpa-psk ascii

mbssid guest-mode

end

en

conf t

int dot11 0

mbssid

ssid Ownage 2

encryption vlan 10 mode ciphers tkip

no shut

end

en

conf t

int dot11 0.1

encap dot1Q 1

bridge-group 1

end

en

conf t

int dot11 0.10

encap dot1Q 10

bridge-group 10

end

en

conf t

int gig 0.1

encap dot1Q 1

bridge-group 1

end

en

conf t

int gig 0.10

encap dot1Q 10

bridge-group 10

end

Make sure all the interfaces are up by issueing the command "sh ip int br"

The above will help you!!

Regards

Surendra

[rdpierce]

Surendra,

It's not very clear in what you've posted on how you're selecting the radio.  I used Cisco CP to configure the AP for a friends business and it's very feature poor in regards to the AP.

I'm trying to reconfigure his AP so that I enable to N and G access for various users who come through the office but CP doesn't offer radio options and seems to bind to the G radio by defacto.  Perhaps it's more configurable via the http interface, but I can't reach it from outside of the office.  I know the encryption has to be changed away from WEP in order to do N, but the radio binding's are cryptic.

Could you look at my config and give me some guidance on enabling the same SSID for both N and G?  If you could point out which commands are specific to VLAN and radio bindings so I can see what's going on, that'd be really wonderful!

!
dot11 ssid SGAP
   vlan 1
   authentication open
   guest-mode

dot11 network-map
bridge irb
!
!
interface Dot11Radio0
no ip address
no ip route-cache
!
encryption vlan 1 key 1 size 40bit 0 transmit-key
encryption vlan 1 mode wep mandatory
ssid SGAP
!
speed  basic-1.0 basic-2.0 basic-5.5 basic-11.0 basic-6.0 basic-9.0 basic-12.0 basic-18.0 basic-24.0 basic-36.0 basic-48.0 basic-54.0 m0. m1. m2. m3. m4. m5. m6. m7. m8. m9. m10. m11. m12. m13. m14. m15.
packet max-retries 3 0 fail-threshold 100 500 priority 6 drop-packet
packet max-retries 3 0 fail-threshold 100 500 priority 7 drop-packet
packet speed  5.5 11.0 6.0 12.0 24.0 priority 6
station-role root
!
interface Dot11Radio0.1
encapsulation dot1Q 1 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 GigabitEthernet0
description the embedded AP GigabitEthernet 0 is an internal interface connecting AP with the host router
no ip address
no ip route-cache
!
interface GigabitEthernet0.1
encapsulation dot1Q 1 native
no ip route-cache
bridge-group 1
no bridge-group 1 source-learning
bridge-group 1 spanning-disabled
!
interface BVI1
ip address dhcp client-id GigabitEthernet0
no ip route-cache
!

Thanks!

Bob Pierce

[Surendra BG]

Hi Bob,

here is the config which wil give N speeds..

dot11 ssid SGAP
   vlan 1
   authentication open
   guest-mode
bridge irb
!
!
interface Dot11Radio0
no ip address
no ip route-cache
!

ssid SGAP

Regards

Surendra

[Leo Laohoo]

Whooops!  Someone deleted the post.

[josephsarkis]

I have a question. I have a Cisco 881G-V-K9 wireless router and I am getting very weak signal. I am using a PCTEL antenna to strengthen the signal. My question is do I need to connect the PCTEL anntenna to the 881G-V-K( router? If so how do you do it? The PCTEL part# is MPMB80621MPTC. It's a 806-960/1710-2170 MHZ, 5/7 dBi, Panal antenna