ccna访问控制的相关内容

CCNA培训课总结笔记--扩展访问控制列表实验(九)

实验目的: 理解访问列表ACL的工作原理,熟悉配置扩展ACL的基本步骤实验拓扑图: 实验内容: 路由器上的配置 R1上的配置进入全局模式,粘贴上基本路由命令 Router(config)#enable password cisco Router(config)#no ip doma...

CCNA--访问控制列表（ACL）

访问控制列表（Access Control List，ACL）是路由器和交换机接口的指令列表，用来控制端口进出的数据包。ACL适用于所有的被路由协议，如IP、IPX、AppleTalk等。这张表中包含了匹配关系、条件和查询语句，表只是一个框架结构，其目的是为了对某种访问进行控制。 A...

云安全基础课 - 访问控制概述

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CCNA课堂练习三:标准访问控制列表和扩展访问控制列表的区别

访问控制列表有两种：一种是标准的访问控制列表，另一种是扩展的访问控制列表。访问控制列表(ACL)是应用在路由器接口的指令列表。这些指令列表用来告诉路由器哪能些数据包可以收、哪能数据包需要拒绝。至于数据包是被接收还是拒绝，可以由类似于源地址、目的地址、端口号等的特定指示条件来决定。扩展访问控制列表其...

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