4, plug the power cord switch, then release the "mode" button. Following prompt appears: The system has been interrupted prior to initializing the flash file system. When configured IPSec policy, the endpoint computer uses IKE Phase 1 negotiation parameters to establish a secure VPN access for all communications traffic between the two parties to establish a master security association. Equipment to be used here to generate a shared authentication and master key. Then the system using the IKE Phase 2, for the time the application of the effort to protect the flow of information to another security association negotiation, which includes the generation of shared session key. Only these two sets of computer know all the keys. Associated with the exchange of data security has received very good protection, side suffered an attack on the network who may modify or monitor. Key is automatically updated based on IPSec policies, according to administrator-defined policies to provide appropriate protection. Internet Engineering Task of the IPSec tunneling protocol specification does not include remote access VPN for client mechanism. Omitted features include user authentication options and the client IP address configuration, but the Internet has increased the draft by the correction. Draft proposals for the extension of these user-based authentication and define a standard method of address assignment. However, before using the products from different vendors should be clear interoperability, because all firms choose their own unique way to extend the agreement.
In-Stat Group analyst Alan Nogee said he expected most of the next telecom vendors will provide similar services, but time is at least two years. Most are still in the construction due to the current high-speed wireless network, "even six months after the companies are not necessarily there will be follow-up." WLANs allows laptop users to 300 feet through the modems use a wireless network within the Internet. Although WLAMs is to use the 802.11 standard, but there are many different versions of the standard to provide different security and speed. For example, most existing Wi-Fi network using the 802.11b, but the industry has in the development of 802.11a and 802.11g, to provide better security and speed. 802.11b version uses 2.4GHz spectrum in three bands, due to non-regulated segment of the spectrum is, therefore, including wireless phones, microwave ovens, with many Bluetooth products are using this band. Bluetooth is a wireless transmission technology that allows different devices for wireless data exchange. Since the data are airborne, so the transfer process may have been others "captured."