Research On Application Of L2TP/IPSec VPN Technology In Radar Troop Of Air

With the rapid development of Network technique, the traditional private network connections that based on a fixed physical location has already run into difficulties to meet the demands of the development of economy. Although the traditional special line network technique is stronger on the safety .credibility, the price is very expensive, using the feeling that the sections all have unbearable heavy burden. Because the new network is technical of appear continuously, each unit's network construction toward oneself put forward a higher request, mainly expressing in the vivid,safety,economy of the network and expanding sex etc. aspect. The network of the troops is also such. Particularly the radar troops, its troops organization locates downtown, but the basic level connect brigade but dispersion in the districts, such as very far border defense and high mountain...etc. having higher request in the safety,economy,vivid,etc. of the network.The L2TP/IPSec VPN technically put forward be is far the organization network and the dispersion the son net gets up through the Internet conjunction in the side, resolving the problem of the safety,economy,vivid,etc. of the network availably.This dissertation first makes a summary L2TP/IPSec VPN and the relevant VPN, L2TP, IPSec techniques .It reviews the developing history of L2TP, IPSec, makes a survey of the latest developments of L2TP/IPSec VPN home and abroad. On this basis of the above mention, the dissertation fulfills the following:Firstly, studied the key technique and adaptability,function of the L2TP/IPSec VPN according to the actual circumstance of the organization concentration,subordinate unit dispersion, design the L2TP/IPSec VPN to carry out a project technically.Secondly, carried out the principle and the realization technique of the project to carry on to elaborate in detail in the radar troops to the L2TP/IPSec VPN technique.