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Standard Service Set IDentifier

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SSID (Service Set IDentifier) can be described as wireless local area network (WLAN). All the wireless devices on a WLAN have to use the same SSID so as to facilitate interaction with each other. SSID is also called: Network Name Service, Set Identifier and ESSID (Extended Service Set IDentifier).

There are usually two methods of setting SSID on wireless clients; the manual method and the automatic method. Through the manual method the SSID is placed within the settins for the client’s network. When using the automatic method the SSID is left automatic or blank. A public SSID that is set on the access point is often employed by network administrator. This approach creates a chance for the actual transmitting of data and support to all systems within range. In order to enhance network security some of the most recent wireless access points will disable the automated SSID broadcast capability. SSIDs are text strings which are case sensitive. It is actually one particular series of letters and numbers limited to a maximum length of 32 characters.

How a SSID Goes to workAn SSID identifies a 802.11(Wi-Fi) network. The SSID is really a secret key designed by the wireless network administrator. Users need to know the SSID to connect with an 802.11 wireless network. The SSID however may be found through network scanning. The SSID is displayed by default as a part of the header for each packet processed and dispatched over the WLAN.

Radio signals are perpetually broadcast by SSID access points. In the instance that client machines are empowered, these radio signals are typically picked up by the systems. The client connection to the access point is facilitated because of the automatic or manual configuration. Despite the fact that an SSID is usually 32 items long, it is presented for the convenience of the user in human readable ASCII format. Many access points may may share the same SSID should they be hooked up to the same wireless network. Because numerous wireless access points make it possible for broadcasting of a number of SSIDs creates a chance for the creation of Virtual Access Points. These particular Virtual Access Points seperate one particular physical access point into numerous logical access points. Each of these created logical access points possess a particular set of security and network settings.

SSID Security and safety Issues

The network moderators often discover that a severe management concern is posed by the reality thatthe SSID is actually a secret key and not a public key. As a result each and every network user is required to configure the SSID into their system. For that reason the network administrator will have to switch the SSID of the network in an effort to refuse an individual access. What this means is that the SSID on each and every network node must be reconfigured. The good thing is some 802.11 NICs encourage the configuration multiple SSIDs in a single motion.

Traditional SSID’s

Access point vendors for 802.11 tend to allow for the use of ‘any’ .This enables an 802.11 NIC to connect to any network. Buffalo Technologies, D-Link, Cisco, Proxim, Intermec and Enterasays tend to produce wireless equipment that often accommodate this.The SSID is communicated in plain text format when a client connects to the wireless network.

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February 18th, 2011 at 4:55 am