21 May 2023

Cisco AP Power Levels Manual Config

2.4Ghz 

1 = 20 dBm / 100mW
2 = 17 dBm / 50mW
3 = 14 dBm / 25 mW
4 = 11 dBm / 12.5 mW

 

 UNII 1                                                 UNII 2 / 3

1 = 11 dBm / 12.5 mW                          1 = 17 dBm / 50mW
2 = 8 dBm / 6.25 mW                            2 = 14 dBm / 25 mW
3 = 5 dBm / 3 mW                                3 = 11 dBm / 12.5 mW
4 = 2 dBm / 1.5 mW                              4 = 8 dBm / 6.25 dBm

 

  Translation between mW and dBm

dBm

-1

2

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

mW

1

2

3

4

5

6

8

10

12

15

20

25

30

40

50

60

80

100

125

150

200

250

6 May 2023

Upgrading Cisco DNA Sensors AIR-AP-1800S-Z-K9

 

These AP have a interesting Console cable.


You need a special cable AIR-CONSADAPT=


Best to use a POE Adaptor so you get ethernet access  for TFTP  AIR-MOD-POE


Connect to POE port to power the device and issue this command on console


Enable

  Username is Cisco

   Password is Cisco

Enable

archive download-sw /reload tftp://x.x.x.x/SW1800-SENSOR-K9-2-3-6-0.tar.gz

Starting the image download...,
It may take a few minutes to finish download.,
If it is longer, please abort command, check network connection and try again
##########################################################                81.1%[*05/06/2023 07:46:36.1999] systemd[1]: Failed to start NTPD daemon.
[*05/06/2023 07:46:36.1999] systemd[1]: ntpd.service failed.
######################################################################## 100.0%
Image downloaded, writing to flash...
do PREDOWNLOAD, part1 is active part
Image signing verify success.
Verify returns 0
Unlocking /dev/mtd4 ...
Erasing /dev/mtd4 ...
23+0 records in
23+0 records out
upgrade.sh: part to upgrade is part2
upgrade.sh: AP backup version: 2.3.6.0
IPC socket server not ready for capwapd. Try after few moments, Errno: 2
do ACTIVATE, part1 is active part
upgrade.sh: activate part2, set BOOT to part2
upgrade.sh: AP primary version: 2.3.6.0
upgrade.sh: AP backup version: 8.8.259.0
Archive done.

Note: now login details

  Username is sensor

  Password is password




Wireless ONLY

Create SSID called CiscoSensorProvisioning (Hidden)  WiFi Network with DHCP



Cisco_1800S_Sensor_Deployment_Guide_133.pdf


21 Apr 2023

WiFi 6Ghz In Australia 6E


 Wi-Fi 6E – 6GHz is now approved for use in Australia.  Certified 6E devices will be able to use the 6GHz Wi-Fi band .


Australian Communications and Media Authority has approved 500MHz at the low end of the 6GHz band (5925–6425GHz). 

ACMA has limited the transmission strength (mW) to ensure that Wi-Fi 6E will not go outside the building.   WiFi 6E Unbuilding ONLY currently


5925-6425 MHz (U-NII 5) frequency band adopts the use of IEEE 802.11ax / Wi-Fi 6E protocol capabilities with WPA3 and Enhanced Open.    

So we have 25 channels at 20Mhz width or  12 at 40MHz


Graphic From Cisco Blog by Joseph Vasanth Louis


The channel numbering is interesting.


Best practice currently is to have 5Ghz and 6Ghz running on the AP so devices like apple can discover the network


Currenly  21/4/2023  Cisco AP are not Certified to work in AUS yet.


you get this error....





Mist APs are working in AUSTRALIA now.







Remote Desktop to Azure AD Joined Computer


Add the following to the bottom of the RDP file.


enablecredsspsupport:i:0

authentication level:i:2



For the user name field should be formatted as .\AzureAD\email@company.com


Adding the dot slash (.\)  will save you having to add AzureAD\ to the beginning of your user name each time you try to log in.)



10 Apr 2023

Monitor Interfaces

 


Monitor Interfaces






Display Port is the most common now

Followed by HDMI