电子设计工程
電子設計工程
전자설계공정
ELECTRONIC DESIGN ENGINEERING
2011年
20期
58-60,67
,共4页
流量识别%P2P%Snort%链表结构%规则
流量識彆%P2P%Snort%鏈錶結構%規則
류량식별%P2P%Snort%련표결구%규칙
flow identification%peer to peer (P2P)%Snort%chain structure%rule
针对当前P2P流量消耗大量带宽,降低接入网络性能的问题,采用规则匹配的方法,借助入侵检测系统Snort的链表结构,设计了一种局域网P2P流量识别系统,该系统综合使用端口识别和特征匹配两种传统方法进行检测,并采用一种动态规则匹配机制,增加选项索引链表,对规则匹配的次序进行动态调整,从而提高规则匹配的速度。实验结果表明该系统可迅速发现并准确提示不同P2P流量。
針對噹前P2P流量消耗大量帶寬,降低接入網絡性能的問題,採用規則匹配的方法,藉助入侵檢測繫統Snort的鏈錶結構,設計瞭一種跼域網P2P流量識彆繫統,該繫統綜閤使用耑口識彆和特徵匹配兩種傳統方法進行檢測,併採用一種動態規則匹配機製,增加選項索引鏈錶,對規則匹配的次序進行動態調整,從而提高規則匹配的速度。實驗結果錶明該繫統可迅速髮現併準確提示不同P2P流量。
침대당전P2P류량소모대량대관,강저접입망락성능적문제,채용규칙필배적방법,차조입침검측계통Snort적련표결구,설계료일충국역망P2P류량식별계통,해계통종합사용단구식별화특정필배량충전통방법진행검측,병채용일충동태규칙필배궤제,증가선항색인련표,대규칙필배적차서진행동태조정,종이제고규칙필배적속도。실험결과표명해계통가신속발현병준학제시불동P2P류량。
Aiming at the high bandwidth assumption of P2P (peer to peer) flow, a LAN P2P flow identification system is designed based on Rule-matching and chain structure of IDS Snort. Two main traditional methods, port identification and feature matching are synthetically used in this system. In order to increase the rule- matching speed effectively, a dynamic mechanism is applied. By a chain of the option index, the sequence of rule-matching is adjusted dynamically. The experimental results indicate that this system can rapidly discover and further accurately alarm the different P2P flow.