Research On Technology Of IPv4-v6 Compositive Network Construction

There are many problems regarding address,sagety,and service quality guarantee facing the first generation of network with IPv4 as the core protocol. These problems along with the quick development of mobile business demand have promoted all the countries in the world to study the next generation of network with IPv6 as the core protocol.There are many advantages with IPv6,such as almost limitless address space, supporting plug and play,strong safety quality,broadly supporting mobile technics.So it is inevitable that IPv6 will replace IPv4.Under this background, when design the network construction,Heilongjiang communications system must think about the more and more apply and demand of high qulity network.It must think about the design of transition mechanism and project.This article research on the three key technics,include double protocol stack technology,tunnel technology and translation strategy.It analyzes the realizing mechanism,in common used configuration methods of the three technologies.It provides IPv4-6 network transition course to four steps.In each steps,it choices relevant technology methods according to different proportion and apply circumstance of IPv4 and IPv6.It synthesized used the three key technologies and complete the design of IPv4-v6 synthesized network project.On the basis of the research,this article analyzes Heilongjaing communications network,the relavent IPv6 network technology theory,the next network construction principles and demand for design.It provides the Heilongjiang communications network synthesized network project.The project explains many problems during the transition step of Heilongjiang communication network IP4-6,such as main network design, connect network design,client point design,route agreement desigh,domain name analyzed dispose,network safety design,equipment choice project,and so on.It makes out the address distribute policy of Heilongjiang communications net work IPv6.It provides the foundation of now network circumstances transfer from IPv4 to IPv6 of Heilongjiang communications network circumstance.