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How secure are Wireless LAN services?

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Security is added by:

  • Frequency hopping Spread spectrum
    Spread spectrum transmitters send their signals out over a multiple range of frequencies at very low power, in contrast to narrow band radios that concentrate all of their power into a single frequency. With the frequency hopping method of spreading their signals, the radio switches frequencies many times a second, transmitting on each channel for a fixed amount of time, then proceeding on to the next channel in its sequence, covering all of the channels before repeating the sequence. Without knowing the dwell time and what the hopping pattern is, it is impossible for a non-participating station to receive and decipher the data.
  • ESS ID
    The ESSID is a string used to identify a wireless network. An SU can only associate with an AU (at the base station) that has an identical ESSID. T he AU first determines if that AU belongs to its network, or Extended Service Set (ESS). IT looks to see if the station’s ESS Identifier (ESS ID) matches its own. Non-members, even with another set of Breeze ACCESS products, can neither participate in the network nor learn the hopping sequence and timing needed to eavesdrop.
  • WEP
    Wired Equivalent Privacy algorithm as defined In the IEEE 802.11 Wireless LAN standard is used to prevent unauthorized wireless connection.
    In 802.11 networks, access to network resources is denied any user who does not prove knowledge of the current key. The user of the station hardware provides the current key before the station is given access to the Access Point and the wired network .
  • VLAN Separation
    A different VLAN is defined per subscriber. Each VLAN act as a closed and secured network, which is protected from intrusions of users from other VLAN’s. Broadcasted messages always remain within the VLAN and cannot be seen by users in other VLAN’s.