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W5HN North Texas Microwave Society NTMS WWW.NTMS.ORG 1 802.11b/g/a Wireless Technology Devices Using 802.11x Gear in HSMM Jeff Fant, N5OLF, CWNA, CCAI,

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Presentation on theme: "W5HN North Texas Microwave Society NTMS WWW.NTMS.ORG 1 802.11b/g/a Wireless Technology Devices Using 802.11x Gear in HSMM Jeff Fant, N5OLF, CWNA, CCAI,"— Presentation transcript:

1 W5HN North Texas Microwave Society NTMS b/g/a Wireless Technology Devices Using x Gear in HSMM Jeff Fant, N5OLF, CWNA, CCAI, CCNA

2 W5HN North Texas Microwave Society NTMS 2 Types of Wireless Networks Ad HocAd Hoc –PC to PC with no Access Point –IBSS InfrastructureInfrastructure –All PCs communicate with each other through a common Access Point(s) –BSS –EBSS

3 W5HN North Texas Microwave Society NTMS 3 Infrastructure Networks Basic Service SetBasic Service Set –Only on Access Point –Usually connects network to the Internet Extended Service SetExtended Service Set –More than one Access Point –Wired connectivity between Access Points –Usually connectivity to the Internet is through the wired network

4 W5HN North Texas Microwave Society NTMS 4 Types of Wireless Devices Wireless GatewaysWireless Gateways Wireless RoutersWireless Routers Wireless Access PointsWireless Access Points Wireless BridgesWireless Bridges Wireless Workgroup BridgesWireless Workgroup Bridges Wireless ClientsWireless Clients Usually found in the same device Bridges are an upgrade to an Access Point Clients

5 W5HN North Texas Microwave Society NTMS 5 Wireless Gateways & Routers Wireless GatewayWireless Gateway (Default) –Runs PPPoE out to an ISP –Router is the edge router Wireless RouterWireless Router –Runs RIP1 or RIP2 –Router is within the network, but not the boundary router

6 W5HN North Texas Microwave Society NTMS 6 Wireless Gateways Internet ISP Network #1 Network #2

7 W5HN North Texas Microwave Society NTMS 7 Wireless Router Internet ISP Wired Gateway Router Network #1 Network #2 Network #3 Network #4 Network #5 Wireless Routers

8 W5HN North Texas Microwave Society NTMS 8 Wireless Clients PCI Interface CardPCI Interface Card –Desktops USB CardsUSB Cards –Desktops, Laptops & Notebooks PCMCIA Insertion CardsPCMCIA Insertion Cards –Laptops & Notebooks Build-in ChipsetBuild-in Chipset –Notebooks

9 W5HN North Texas Microwave Society NTMS 9 PCI, PCMCIA & USB

10 W5HN North Texas Microwave Society NTMS 10 Wireless Access Points Access Point does not route traffic between networksAccess Point does not route traffic between networks It only performs the function of a portalIt only performs the function of a portal –Ethernet uses frames Maximum size 1518 is bytesMaximum size 1518 is bytes –Wireless uses frames Maximum size 2346 is bytesMaximum size 2346 is bytes

11 W5HN North Texas Microwave Society NTMS 11 Access Points All wireless clients can be on the same IP network. AP #1 AP #2 AP #3 Client Roaming is Possible Wired Router Network #1 Network #2 Channel #1Channel #6Channel #11 RED SSID: RED About 20% to 30% of Cell overlap required for roaming Ethernet Wireless


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