Wireless networking Unit objective: Identify wireless networking standards, and install a SOHO network

Topic A Topic A: Wireless networking standards Topic B: Wireless SOHO networking

Major wireless standards StandardSpeedsFrequencyIndoor distance Outdoor distance Interference b<= 11 Mbps 2.4 GHz50 m300 mYes a<= 54 Mbps 5 GHz15 m30 mNo; Not compatible with b g20+ Mbps Ad. to 54 Mbps 2.4 GHz45 m90 mYes; Compatible with b n<= 600 Mbps 2.4 or 5 GHz 70 m250 mNo; Compatible with g, b, & a

Bluetooth A standard for short-range wireless communication and data synchronization between devices Transmitters and receivers are application-specific integrated circuits (ASICs) Rates in excess of 1 Mbps Up to three voice channels available 2.4-GHz frequency range 10 meters range

Transmission encryption WEP WPA WPA2

Topic B Topic A: Wireless networking standards Topic B: Wireless SOHO networking

Purposes of a plan Verify that all business requirements will be met Verify that all technical requirements will be met Create a roadmap for network implementation Document the network design for future use

Creating a plan 1.Determine business requirements 2.Review the current infrastructure 3.Review new and existing technologies 4.Determine the appropriate infrastructure requirements 5.Document the design 6.Review the documentation with the appropriate personnel

Ongoing planning Plans evolve New technologies emerge

Implementing a plan 1.Purchase equipment 2.Install network media 3.Connect your networking devices 4.Connect your computers

Wireless LAN components Wireless NICs Wireless access points

Firewalls Controls traffic Blocks or permits traffic based on rules

NAT Correlates internal and external addresses Protects internal devices Reasons for NAT –Availability of addresses –Security

Port address translation NAT services using port numbers Port triggering

Security zones Intranet Perimeter DMZs

Configuration options Encryption Firmware updates Change default administrator accounts Change default SSID Disable SSID Disable DHCP MAC filtering WPS QoS

Configuring wireless clients Windows Zero Configuration Options 802.1X

Unit summary Identified wireless networking standards, and installed a SOHO network