源地址路由 的英文怎麼說
中文拼音 [yuándezhǐlùyóu]
源地址路由
英文
source route-
Today, numbers are on the wane thanks to the ease with which mobiles can store and retrieve names and the ubiquity of e - mail addresses and other internet - based identity tags, such as skype names
現在,由於移動設備存取名字十分方便、再加上無處不在的電子郵件地址及其它源自網際網路的身份標識,數字在生活中正變得越來越少見。When ddos happens, the flood presents some characteristics, such as the statistical distributing. although an attacker can forge any field in the ip header, he or she cannot falsify the numbers of hops an ip packet takes the reach its destination, which is solely determined by the internet routing infrastructure
Tcpsynflood攻擊發生時,在路由器會引起某些異常情況,如流量異常(可能會流量猛增) ,報文流一些特徵的統計分佈特性發生改變(如源ip地址的隨機分佈特性, ttl欄位的分佈特性)等。In addition, compallng of anplementaton, security flexibility scalability and support of qos between these two models is provided. at the saxne time, mels vpn - - - - a solution for integrated model is discussed in detail, including network components of mpls vpn and its operation mode. there are also some problems that must be solved to build a mpls vpn, such as customer address space overapping, network accessibility constraini, vpn route updating, saving of backbone bandwidth, reducing of complexity of pe rooters and accessing internet from vpn, etc. mpls vpn can solve all the problems, as well as bring us some values in scalability, implemotation and maintenance
在此基礎上,詳細闡述了集成模型的解決方案? ? mplsvpn的工作原理,包括mplsvpn的網路構成和運行模式,對實現虛擬專用網所面臨的問題:用戶地址空間重疊、網路連通性約束、 vpn路由信息更新、節省骨幹網帶寬資源、降低pe路由器處理的復雜性以及如何在虛擬專用網內訪問internet等提出了解決方案,並對mplsvpn在擴展性、可實現性、可維護性方面的優勢進行了說明。The directional routing protocol ds _ dsr put forward by the author is the improvement of the current protocol dsr, complete routine discovery and maintenance by directional neighbor nodes routing table, source routing and directional steering. the research discovers the application of the directional antenna, compare the omnidirectional antenna can increases the networks " total throughput, obviously reduces the co _ channel interference ( cci ), multiple access interference ( mai ), enlarges the nodes " signal and interference to noise ratio ( sinr ), and because of the high gain of directional antenna can realize the communication with farther distance and less jump, end to end delay can decrease deeply, simultaneously, security of networks can be improved partially, the node energy also can be saved easily by power control
本文提出的定向路由協議ds _ dsr是基於對現有協議dsr的改進下實現的,通過定向鄰節點路由表、定向源路由和定向搜索來完成路由發現與維護。研究發現,定向天線的應用,相比全向天線可明顯提高網路的總的吞吐量,減少通道干擾、多址干擾,提高信干噪比,且由於定向天線的高增益可實現較遠距離、較少跳數的通信,減少了路由發現時間,這樣大大減小了傳輸時延,網路的整體性能得到了不同程度的提高,同時部分地解決安全問題,通過功率控制還可較容易的實現節能的目的。Common network attacks such as ip spoofing, source route spoofing, icmp redirect deception and ip hijack are analyzed and protected by filter manage module. ip hijack protection is implemented through injecting a hook function into protocol stack in detail
針對常見的ip地址欺騙、 ip源路由欺騙、 icmp重定向欺騙、 ip劫持等網路攻擊給予了分析並在過濾管理模塊中給出了防禦的方法,其中ip劫持防禦是用一個鉤子函數注入協議棧中來實現的。This is typically caused by a router forwarding a packet using an interface that is outside the scope of the source address
這通常是由於路由器使用了源地址范圍以外的介面轉發數據包所導致的。In section three, a complementary scheme of spectral coding and decoding is proposed. it makes full use of the broad band incoherent gauss optical source and compensates the unflatness of sectrum of the source. combining with the method of banlanced detecting, the multiple accsss interference of the multiple users is rejected in the decoding port
不同於ocdma系統中每個用戶擁有一對編解碼器,該方案通過利用二維rs碼字的周期性和awg路由器的循環性,系統所用的編解碼器能夠同時對不同用戶的地址碼進行編解碼,使得系統中的用戶共享編解碼資源,減少了系統的復雜性。Then referring to the distribution projects of ip address in existing gprs network, the author analyzed and compared relative merits of deferent projects and brought up a new project : because both chinese gprs network and exterior data network are actually the same physical network, considering the gprs network security which is ensured by invisibility relative to exterior network, gprs network facilities try their best to employ private address in order to detach logically gprs core - net from exterior network through packet filtration of firewall and router ; because of the deficiency of public ip address recourses, the employment of public ip address should be minimized
隨后參照現有gprs網路ip地址的分配方案,通過分析、比較各種方案的優缺點,提出了一個新的分配方案:由於中國gprs網路和外部數據網合二為一的現實,出於對安全性的考慮,網路設備盡量採用私有地址,通過防火墻和路由器進行包過濾,使gprs核心網在邏輯上與外部網路分開,使其對外部網路不可見以保證gprs的網路安全性;同時,由於公有ip地址資源不足,盡可能地減少用戶對公有ip地址的佔用。The main circuit adopt boost converter topology ; the control circuit is made up of adsp - 21065l core processor, a / d converter and cpld which realize the functions of digital pulse width modulation ( dpwm ) and address decoding ; the auxiliary power supply afford work voltage of every device
。 st變換器拓撲結構;控制電路主要由核處理器adsp 、 21065l 、 al3轉換器和實現dpwm及地址解碼功能的cpld等器件組成;輔助電源電路為控制電路中各器件提供工作電壓。Several ( including one ) lsps may be established between a pair of source - destination nodes. the route of each lsp can be independently assigned
一對源-目的地址之間可以建立多條(包括一條)不同的lsp ,每條lsp的路由可以獨立指定。If, according to the gateway s routing tables, the destination address specified in the datagram to be forwarded is not reachable, it will return a
如果根據網關的路由表,數據報中指定的要轉發的目的地地址是不可到達的,則網關會向源主機返回icmp的分享友人