Contents contributed and discussions participated by DonDevis Charlie - CCNA Networking

Cisco's Unified Wireless Solution - 0 views

DonDevis Charlie on 04 May 14

With a range of products that support IEEE 802.11a/b/g and soon "n" technologies, Cisco really does offer a pretty complete and impressive line of in-building and outdoor wireless LAN solutions.

<div class="cArrow"> </div><div class="cContentInner">With a range of products that support IEEE 802.11a/b/g and soon "n" technologies, Cisco really does offer a pretty complete and impressive line of in-building and outdoor wireless LAN solutions. </div>

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Split MAC Architecture - 0 views

DonDevis Charlie on 04 May 14

Basically, the split-MAC architecture allows the splitting of 802.11 protocol packets between the Cisco LWAPP-based AP that handles real-time portions of the protocol and the WLAN controller that handles any items that are not time sensitive.

<div class="cArrow"> </div><div class="cContentInner">Basically, the split-MAC architecture allows the splitting of 802.11 protocol packets between the Cisco LWAPP-based AP that handles real-time portions of the protocol and the WLAN controller that handles any items that are not time sensitive. </div>

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MESH and LWAPP - 0 views

DonDevis Charlie on 04 May 14

As more vendors migrate to a mesh hierarchical design, and as larger networks are built using lightweight access points, we really need a standardized protocol that governs how lightweight access points communicate with WLAN systems. This is exactly the role filled by one of the Internet Engineering Task Force's (IETF's) latest draft specification, Lightweight Access Point Protocol (LWAPP).

<div class="cArrow"> </div><div class="cContentInner">As more vendors migrate to a mesh hierarchical design, and as larger networks are built using lightweight access points, we really need a standardized protocol that governs how lightweight access points communicate with WLAN systems. This is exactly the role filled by one of the Internet Engineering Task Force's (IETF's) latest draft specification, Lightweight Access Point Protocol (LWAPP). </div>

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Wireless Security - 0 views

DonDevis Charlie on 04 May 14

wireless security is nonexistent on access points and clients. The original 802.11 committee just didn't imagine that wireless hosts would one day outnumber bounded media hosts, but that's truly where we're headed.

<div class="cArrow"> </div><div class="cContentInner">wireless security is nonexistent on access points and clients. The original 802.11 committee just didn't imagine that wireless hosts would one day outnumber bounded media hosts, but that's truly where we're headed. <br /></div>

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Open Access - 0 views

DonDevis Charlie on 04 May 14

All Wi-Fi Certified wireless LAN products are shipped in "open-access" mode, with their security features turned off. While open access or no security may be appropriate and acceptable for public hot spots such as coffee shops, college campuses, and maybe airports, it's definitely not an option for an enterprise organization, and likely not even adequate for your private home network.

<div class="cArrow"> </div><div class="cContentInner">All Wi-Fi Certified wireless LAN products are shipped in "open-access" mode, with their security features turned off. While open access or no security may be appropriate and acceptable for public hot spots such as coffee shops, college campuses, and maybe airports, it's definitely not an option for an enterprise organization, and likely not even adequate for your private home network. </div>

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SSIDs, WEP, and MAC Address Authentication - 0 views

DonDevis Charlie on 04 May 14

SSID is a common network name for the devices in a WLAN system that create the wireless LAN. An SSID prevents access by any client device that doesn't have the SSID. The thing is, by default, an access point broadcasts its SSID in its beacon many times a second. And even if SSID broadcasting is turned off, a bad guy can discover the SSID by monitoring the network and just waiting for a client response to the access point.

<div class="cArrow"> </div><div class="cContentInner">SSID is a common network name for the devices in a WLAN system that create the wireless LAN. An SSID prevents access by any client device that doesn't have the SSID. The thing is, by default, an access point broadcasts its SSID in its beacon many times a second. And even if SSID broadcasting is turned off, a bad guy can discover the SSID by monitoring the network and just waiting for a client response to the access point. </div>

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WPA or WPA 2 Pre-Shared Key - 0 views

DonDevis Charlie on 04 May 14

WPA or WPA2 Pre-Shared Key (PSK) is a better form of wireless security than any other basic wireless security method mentioned so far. I did say basic.

<div class="cArrow"> </div><div class="cContentInner">WPA or WPA2 Pre-Shared Key (PSK) is a better form of wireless security than any other basic wireless security method mentioned so far. I did say basic. </div>

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Cisco Unified Wireless Network Security - 0 views

DonDevis Charlie on 04 May 14

The Cisco Unified Wireless Network delivers many innovative Cisco enhancements and supports Wi-Fi Protected Access (WPA) and Wi-Fi Protected Access 2 (WPA2), which provide access control per user, per session via mutual authentication and data privacy and through strong dynamic encryption.

<div class="cArrow"> </div><div class="cContentInner">The Cisco Unified Wireless Network delivers many innovative Cisco enhancements and supports Wi-Fi Protected Access (WPA) and Wi-Fi Protected Access 2 (WPA2), which provide access control per user, per session via mutual authentication and data privacy and through strong dynamic encryption. </div>

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Configuring Our Wireless Internetwork - 0 views

DonDevis Charlie on 04 May 14

Configuring through the SDM is definitely the easiest way to go for wireless configurations, that is, if you're using any type of security. And of course you should be! Basically, all you need to do to bring up an access point is to just turn it on. But if you do have a wireless card in your router.

<div class="cArrow"> </div><div class="cContentInner">Configuring through the SDM is definitely the easiest way to go for wireless configurations, that is, if you're using any type of security. And of course you should be! Basically, all you need to do to bring up an access point is to just turn it on. But if you do have a wireless card in your router. </div>

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Networking Hardware Guide - 0 views

networking-hardware-guide.blogspot.com

Networking Hardware Guide Networking Hardware

shared by DonDevis Charlie on 27 Oct 13 - No Cached

DonDevis Charlie on 27 Oct 13

Complete Computer Networking and Hardware Guide tutorials CCNA and free resources for students and wireless communication guide, LAN/WAN guide, local area network tools,Computer Hardware Troubleshooting · Sharing Internet Connection ...

<div class="cArrow"> </div><div class="cContentInner">Complete Computer Networking and Hardware Guide tutorials CCNA and free resources for students and wireless communication guide, LAN/WAN guide, local area network tools,Computer Hardware Troubleshooting · Sharing Internet Connection ... </div>

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Data Link Connection Identifiers (DLCIs) - 0 views

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Data Link Connection Identifiers (DLCIs) CCNA Cisco CCNA Networking Cisco Routers Protocols LAN WAN WAN Protocols Networking CCNA Questions CCNA Answers Networking Hardware Guide

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Local Management Interface (LMI) - 0 views

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Local Management Interface (LMI) CCNA Cisco CCNA Networking Cisco Routers Protocols LAN WAN WAN Protocols Networking CCNA Questions CCNA Answers Networking Hardware Guide

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Frame Relay Congestion Control - 0 views

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Frame Relay Congestion Control CCNA Cisco CCNA Networking Cisco Routers Protocols LAN WAN WAN Protocols Networking CCNA Questions CCNA Answers Networking Hardware Guide

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Troubleshooting Using Frame Relay Congestion Control - 0 views

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Troubleshooting Using Frame Relay Congestion Control CCNA Cisco CCNA Networking Cisco Routers Protocols LAN WAN WAN Protocols Networking CCNA Questions CCNA Answers Networking Hardware Guide

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Virtual Circuits - 0 views

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Virtual Circuits CCNA Cisco CCNA Networking Cisco Routers Protocols LAN WAN WAN Protocols Networking CCNA Questions CCNA Answers Networking Hardware Guide

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Single Interface Frame Relay Implementation - 0 views

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Single Interface Frame Relay Implementation CCNA Cisco CCNA Networking Cisco Routers Protocols LAN WAN WAN Protocols Networking CCNA Questions CCNA Answers Networking Hardware Guide

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Subinterfaces Frame Relay Implementation - 0 views

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Subinterfaces Frame Relay Implementation CCNA Cisco CCNA Networking Cisco Routers Protocols LAN WAN WAN Protocols Networking CCNA Questions CCNA Answers Networking Hardware Guide

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Monitoring Frame Relay - 0 views

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Monitoring Frame Relay CCNA Cisco CCNA Networking Cisco Routers Protocols LAN WAN WAN Protocols Networking CCNA Questions CCNA Answers Networking Hardware Guide

shared by DonDevis Charlie on 27 Oct 13 - No Cached

DonDevis Charlie on 27 Oct 13

Several commands are used frequently to check the status of your interfaces and PVCs once you have Frame Relay encapsulation set up and running. To list them, use the show frame ? command, as seen here

<div class="cArrow"> </div><div class="cContentInner">Several commands are used frequently to check the status of your interfaces and PVCs once you have Frame Relay encapsulation set up and running. To list them, use the show frame ? command, as seen here </div>

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The show frame-relay lmi Command - 0 views

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show frame relay lmi Command CCNA Cisco CCNA Networking Cisco Routers Protocols LAN WAN WAN Protocols Networking CCNA Questions CCNA Answers Networking Hardware Guide

shared by DonDevis Charlie on 27 Oct 13 - No Cached

DonDevis Charlie on 27 Oct 13

The show frame-relay lmi command will give you the LMI traffic statistics exchanged between the local router and the Frame Relay switch.

<div class="cArrow"> </div><div class="cContentInner">The show frame-relay lmi command will give you the LMI traffic statistics exchanged between the local router and the Frame Relay switch. </div>

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The show frame pvc Command - 0 views

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show frame pvc Command CCNA Cisco CCNA Networking Cisco Routers Protocols LAN WAN WAN Protocols Networking CCNA Questions CCNA Answers Networking Hardware Guide

shared by DonDevis Charlie on 27 Oct 13 - No Cached

DonDevis Charlie on 27 Oct 13

The show frame pvc command will present you with a list of all configured PVCs and DLCI numbers. It provides the status of each PVC connection and traffic statistics too.

<div class="cArrow"> </div><div class="cContentInner">The show frame pvc command will present you with a list of all configured PVCs and DLCI numbers. It provides the status of each PVC connection and traffic statistics too. </div>

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