1. 什么是Unicast Reverse Path Forwarding(uRPF)? Unicast Reverse Path Forwarding(uRPF),即单播反向路径转发,是一种网络安全技术,主要用于防止基于源地址欺骗的网络攻击行为。通过检查数据包的源IP地址和路由表,uRPF能够确保流量的真实有效性,从而增强网络的安全性。 2. uRPF的工作原理 uRPF的工作原理基于对数据包源...
uRPF(Unicast Reverse Path Forwarding) 概念和原理 这是网络设备的一个安全特性,主要功能是用于防止基于源地址欺骗的网络攻击行为,说简单一点就是在IP数据包转发的时候不单基于目的地址查看路由表,对源地址同样进行查表,如未能查到路由(一般不是默认路由,但根据策略不同行为稍有区别),则不对数据包进行转发;从路由...
必应词典为您提供Unicast-Reverse-Path-Forwarding的释义,网络释义: 反向传输路径转发;单播反向路径发送;单播反向路径转发;
URPF(Unicast Reverse Path Forwarding)反向路径转发 uRPF(Unicast Reverse Path Forwarding)是一种单播反向路由查找技术,用于防止基于源地址欺骗的网络攻击行为。 URPF技术会首先获取包的源地址和入接口,而后以源地址为目的地址,在路由转发表中查找相对应的转发接口是否与入接口匹配,如不匹配则认为该源地址是伪装的,并将...
Unicast Reverse Path Forwarding (Unicast RPF,单播逆向转发) 之前在组播部分我们提到过这个Unicast RPF,这里我们详细说一下。这个功能可以帮助我们减轻(注意不是完全避免,是减轻)伪造的源IP地址(IP Spoofing,IP地址欺骗)的数据包通过路由器所带来的问题。
Security Configuration Guide: Unicast Reverse Path Forwarding Cisco IOS XE Release 3S (Cisco ASR 920) Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 527-0883 TH...
Unicast Reverse Path Forwarding (uRPF) enables a router to drop IP packets with spoofed source IP addresses.
Unicast Reverse Path Forwarding Concepts and ConfigurationSean Wilkins
2.Unicast RPF checks to see if the packet has arrived on the best return path to the source, which it does by doing a reverse lookup in the FIB table. 3.CEF table (FIB) lookup is carried out for packet forwarding. 4.Output ACLs are checked on the outbound interface....
Unicast Reverse Path Forwarding can perform all of these actions except which one?() A. examine all packets received to make sure that the source addresses and source interfaces appear in the routing table and match the...