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Fundamentals of Wireless LANs 1.2

Fundamentals of Wireless LANs 1.2. Module 5: Access Points. Overview. Access Point Connection. Introduction. Cable and Power. Cisco Aironet 1100 and 1200 Series, can be powered over Ethernet with: Switch with inline power (Option 1) Inline power patch panel (Option 2)

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Fundamentals of Wireless LANs 1.2

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  1. Fundamentals of Wireless LANs 1.2 Module 5: Access Points

  2. Overview

  3. Access Point Connection

  4. Introduction

  5. Cable and Power • Cisco Aironet 1100 and 1200 Series, can be powered over Ethernet with: • Switch with inline power (Option 1) • Inline power patch panel (Option 2) • Optional inline power injector (Option3) • Universal power supply (Option 4)

  6. Cable and Power • WARNING Never connect both the DC power to the AP power port and inline power simultaneously

  7. AP Installation

  8. LED indicators 1100 AP 1200 AP • The LED lights on an access point convey status information. • When the access point is powering on, all three LEDs normally blink. • After bootup, the colors of the LEDs represent the following: • Green LEDs indicate normal activity. • Amber LEDs indicate errors or warnings. • Red LEDs mean the unit is not operating correctly or is being upgraded.

  9. Reset the AP (Power On) 1200 AP 1100 AP • When beginning a lab, to make sure the AP has the default settings, you will reset the AP. • Follow these steps to reset the access point to factory default settings using the access point MODE button: • Step 1 Disconnect power (the power jack for external power or the Ethernet cable for in-line power) from the access point. • Step 2 Press and hold the MODE button while power to the access point is reconnected. • Step 3 Hold the MODE button until the Status LED turns amber (approximately 1 to 2 seconds), and release the button. All access point settings return to factory defaults.

  10. Reset the AP (Power On) 350 AP • The Reset button on the 340 and 350 AP is in a small hole on the back panel of the base station. • To activate the Reset button, insert a straightened paper clip into the small hole and press. • Remove the paper clip. • The Status LED blinks amber to show the base station has the default parameter values.

  11. Connecting to the AP (Configuration) Wired Wireless: Requires Association

  12. Connecting to the AP (Configuration) • Console: 9600-8-N-1-None OR • Ethernet or Wireless adapter: • Unless routed, be sure it is on the IP addresses are same subnet. 10.0.0.1/24 10.0.0.102/24 ) )) )) 10.0.0.101/24

  13. Connecting to the AP (Console) • There are two different types of CLI: • IOS CLI • VxMenu  No longer supported. YES!!! Serial Console Rollover Cable IOS CLI VxMenu

  14. Connecting to the AP (Telnet) • AP Defaults • IP Address = 10.0.0.1/24 • Username and Password = Cisco (“C” not “c”) • This password is the privilege password, not the WEP password. Cisco Requires a network connection either Ethernet or Wireless

  15. Connecting to the AP (Browser) Preferred Method! Wired Wireless: Requires Association

  16. Connecting to the AP (Wireless) SSID = tsunami SSID = tsunami • Wireless adapter: • If configuring using the wireless adapter, you must first associate with the AP. • Make sure the settings on the ACU match the AP. • Cisco 1100 and 1200 Aps have the following defaults: • IP Address = 10.0.0.1 255.255.255.224  Not after 12.x • SSID = tsunami IOS 12.x and later do not have a default SSID • Password = Cisco (“C” not “c”)

  17. Connecting to the AP (Wireless) cont. • After IOS version 12.3(7)JA, Cisco access points no longer have a default SSID or default IP address on the BVI. • You will have to log in via the console using Cisco/Cisco and create an SSID and IP address if you want to telnet/ssh or connect to the AP via the web interface. • Cisco introduced global-mode SSID configuration in Cisco IOS Release 12.3(2)JA to simplify configuration of SSID parameters under multiple interfaces.

  18. 10.0.0.1/27 10.0.0.102/27 Connecting to the AP (Wired) SSID = tsunami SSID = tsunami • Wired Ethernet: • No association necessary • Make sure the IP Address on the Ethernet interface is on the same subnet as the AP. • AP Defaults • IP Address = 10.0.0.1 255.255.255.224 • Password = Cisco (“C” not “c”) Preferred Method! See previous slide

  19. Labs and Station Connectivity Configuring AP1 is easy! AP1 Hey, what happened to my settings on AP2! • In the lab we will need to take steps to make sure you are configuring and connected to the AP that you think you are! • We will first connect via a wired interface, change the SSID and IP addressing on the AP, different from what the labs show. 10.0.0.1 AP2 10.0.0.1

  20. Configuring IP Addresses Wireless Wired

  21. Configuring IP Addresses 224 Configuring the IP address on Host’s Ethernet interface Note: /24 will work because the host still believes it is on the same subnet as the AP (and visa versa)

  22. Access the AP via the Browser /27 10.0.0.1 Cisco

  23. Two things to change SSID: AP-Pod1 Ex: 192.168.1.1/24 Ex: 192.168.1.2/27 • At the beginning of each lab, after you have connected via the wired Ethernet interface, you will change the IP Address and SSID on the AP, so the other Lab Station does not accidentally configure yours. • You will also need to change your Host’s IP address. Hostname Not SSID 224

  24. Cisco AP Factory Default Settings 255.255.255.224 (/27) This does not apply to access points running IOS version 12.3(7)JA or newer

  25. Basic Configuration The labs will really help you understand this.

  26. Configure IP address and SSID with IPSU • IP Setup Utility (IPSU) can only change the IP address and SSID of the access point from their default settings. • After the IP address and SSID have been changed, IPSU cannot change them again unless the mode button is held down. • Use a computer on the wired LAN to communicate with the AP through the wired LAN. • The IPSU must be installed on the computer on the same subnet as the AP. • IPSU uses IP multicast to communicate with the AP • We will not use IPSU. • See 5.2.1 if you are interested.

  27. Navigating the GUI

  28. Home Summary Page (IOS) MAC addresses returned when pinging the AP from wired or wireless client. SA/DA/BSSID Rec. Trans.

  29. Express Setup • Always configure and test the basics first, before configuring authentication and other options.

  30. Using the CLI • Almost exactly the same as using the Router IOS.

  31. The AP’s IP address • Same IP address whether you are connecting via the wired or wireless interface. (For configuring the AP.)

  32. Association or Click here…

  33. Association -> MAC Address

  34. ACU - Verifying Right click

  35. Link Test

  36. Link Status

  37. Network Interfaces Only part of the screen shown.

  38. Network Interfaces

  39. Network Interfaces – Fast Ethernet Only part of the screen shown.

  40. Network Interfaces – Radio-802.11B Only part of the screen shown.

  41. Network Interfaces – Radio-802.11B Only part of the screen shown.

  42. Network Interfaces – Radio-802.11B Only part of the screen shown.

  43. Network Interfaces – Radio-802.11B (Settings)

  44. Network Interfaces – Radio-802.11B (Settings)

  45. Network Interfaces – Radio-802.11B (Settings)

  46. Network Interfaces – Radio-802.11B (Settings) PLCP frame!

  47. Network Interfaces – Radio-802.11B (Settings)

  48. Network Interfaces – 802.11b

  49. Network Interfaces – Radio-802.11B

  50. 802.11B

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