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Using 802.11x Gear in HSMM

Using 802.11x Gear in HSMM. 802.11b/g/a Wireless Technology Devices. Jeff Fant, N5OLF, CWNA, CCAI, CCNA. Types of Wireless Networks. Ad Hoc PC to PC with no Access Point IBSS Infrastructure All PCs communicate with each other through a common Access Point(s) BSS EBSS.

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Using 802.11x Gear in HSMM

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  1. Using 802.11x Gear in HSMM 802.11b/g/a Wireless Technology Devices Jeff Fant, N5OLF, CWNA, CCAI, CCNA WWW.NTMS.ORG

  2. Types of Wireless Networks • Ad Hoc • PC to PC with no Access Point • IBSS • Infrastructure • All PCs communicate with each other through a common Access Point(s) • BSS • EBSS WWW.NTMS.ORG

  3. Infrastructure Networks • Basic Service Set • Only on Access Point • Usually connects network to the Internet • Extended Service Set • More than one Access Point • Wired connectivity between Access Points • Usually connectivity to the Internet is through the wired network WWW.NTMS.ORG

  4. Types of Wireless Devices • Wireless Gateways • Wireless Routers • Wireless Access Points • Wireless Bridges • Wireless Workgroup Bridges • Wireless Clients Usually found in the same device Bridges are an upgrade to an Access Point Clients WWW.NTMS.ORG

  5. Wireless Gateways & Routers • Wireless Gateway (Default) • Runs PPPoE out to an ISP • Router is the edge router • Wireless Router • Runs RIP1 or RIP2 • Router is within the network, but not the boundary router WWW.NTMS.ORG

  6. Wireless Gateways ISP Internet Network #2 Network #1 WWW.NTMS.ORG

  7. Wireless Router Wired Gateway Router Network #5 ISP Internet Network #2 Network #4 Wireless Routers Network #1 Network #3 WWW.NTMS.ORG

  8. Wireless Clients • PCI Interface Card • Desktops • USB Cards • Desktops, Laptops & Notebooks • PCMCIA Insertion Cards • Laptops & Notebooks • Build-in Chipset • Notebooks WWW.NTMS.ORG

  9. PCI, PCMCIA & USB WWW.NTMS.ORG

  10. Wireless Access Points • Access Point does not route traffic between networks • It only performs the function of a portal • Ethernet uses 802.3 frames • Maximum size 1518 is bytes • Wireless uses 802.11 frames • Maximum size 2346 is bytes WWW.NTMS.ORG

  11. Access Points Wired Router All wireless clients can be on the same IP network. Network #2 Ethernet 802.3 Client Roaming is Possible SSID: RED SSID: RED SSID: RED AP #1 AP #2 AP #3 Channel #1 Channel #6 Channel #11 Wireless 802.11 Network #1 About 20% to 30% of Cell overlap required for roaming WWW.NTMS.ORG

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