Designing and Deploying 802.11n Wireless Networks by Jim Geier

By Jim Geier

Gain a pragmatic knowing of the underlying thoughts of the 802.11n common and the methodologies for finishing a profitable instant community installation

Practical, start-to-finish assistance for winning deployment of 802.11n instant LANs

With the ratification of the 802.11n instant LAN general, millions of businesses are relocating quickly towards implementation. even if, 802.11n is especially assorted from legacy 802.11a, 802.11b, and 802.11g instant criteria, and profitable deployment calls for new wisdom and methods. during this booklet, best instant specialist Jim Geier systematically offers the entire details and counsel that community architects, engineers, directors, and executives have to maximize the functionality and enterprise price of recent 802.11n networks.

Drawing on vast event with real-world 802.11n deployments, Geier publications you thru the complete venture lifecycle: making plans, layout, set up, trying out, tracking, and help. each one part of instant LAN deployment is geared up into essentially outlined steps, and a number of case reports and hands-on workouts exhibit the best way to observe each one technique.

You’ll locate sensible assistance for deploying in businesses with out present instant infrastructure, in addition to migrating from legacy 802.11a, 802.11b, or 802.11g networks. For handy reference, Geier additionally presents an in depth, updated instant networking glossary.

figuring out 802.11n MAC, actual layer, and similar standards
Designing 802.11n instant networks for varied eventualities: contemplating structure, variety, functionality, roaming, and RF issues
Migrating from 802.11a, 802.11b, and 802.11g instant networks
selecting the best instruments and gear, and utilizing them effectively
making plans successfully: scoping initiatives; growing paintings breakdown constructions; organizing groups, schedules, and budgets; defining requisites, and more
Securing WLANs through encryption, authentication, rogue entry aspect detection, RF defensive, and polices
appearing web site surveys and making a choice on optimal entry element locations
fitting and configuring instant LANs: making plans, staging, deployment, documentation, and more
Systematic trying out to enhance sign assurance, functionality, and security
dealing with instant LANs: aid table help, community tracking, upkeep, engineering, configuration administration, defense, instruments, and more
Troubleshooting 802.11n networks: making a choice on concerns with connectivity, functionality, and more

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23 Type escape sequence to abort. 23, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 128/131/144 ms Verify connectivity between the home gateway and the NAS. Configuring the Access VPN to Work with Local AAA 45 Configuring Local AAA In this section, the enterprise customer configures local AAA and the usernames needed to authenticate the user and the tunnel: Use this command To do this ENT_HGW(config)# aaa new-model Enable the AAA access control system. This step immediately locks down login and PPP authentication.

Transition states in the debug output signify that everything is operating properly. If you do not see transition states, look at the disconnect reason for the modem. For example, enter the show modem log 1/4 command. 487: VDEV_ALLOCATE: slot 1 and port 4 is allocated. 22) Note If you are still experiencing problems, contact your escalation support personnel. Configuring the NAS for Basic Dial Access 39 40 Access VPN Solutions Using Tunneling Technology Configuring the Access VPN to Work with Local AAA Introduction In this second task, the ISP and enterprise customer: • • • • Configure their network devices to work as an access VPN Use local AAA to authenticate the tunnel and the users Verify that the access VPN works properly Troubleshoot the access VPN if there are problems The ISP configures the NAS, and the enterprise customer configures the home gateway.

In this example, the call comes in to the NAS on asynchronous interface 14. The asynchronous interface is up. 410: %LINK-3-UPDOWN: Interface Async14, changed state to up Note No debug commands are turned on to display this log message. Start troubleshooting the NAS if you do not see the above message after 30 seconds of when the client first transmits the call. Step 4—Pinging the Home Gateway From the client, ping the home gateway. From the client’s Windows 95 desktop: (a) Click Start. (b) Select Run.

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