TCPIP协议的使用利用掩码子网、超网的配置..pptVIP

* * 子网、超网的设置 17.15.255.255/16 (Local network broadcast) X 17.16.1.0/16 17.16.2.0/16 17.16.3.0/16 172.16.4.0/16 17.16.3.255/16 (Direct broadcast) 设置子网可减少网络中的路由器的数量 网络实验与探讨 . * * 子网、超网的设置 主机 IP 地址: 202.195.79.192 网络掩码: 255.255.240.0 Network Subnet Host 202 195 64 011111111 产生的网络地址：110000111111111101000000Subnet: 主机所在网络地址 = 202.195.64.0 本网段主机地址范围= 202.195.64.1–202.195.79.255 此网中的广播地址 = 202.195.64.255 超网掩码用四位比特 00000000 202.195.79.192 255.255.240.0 网络实验与探讨 . * * 子网、超网的设置 IP主机地址 类别 网络地址 最大主机地址 201.222.10.60 255.255.255.248 子网掩码 15.16.193.6 255.255.248.0 128.16.32.13 255.255.255.252 202.195.79.27 255.255.240.0 C 201.222.10.56 201.222.10.63 A 15.16.192.0 15.16.199.255 B 128.16.32.12 128.16.32.15 C 202.195.64.0 202.195.79.255 网络实验与探讨 . . . With eight bits of subnetting, the extracted network (subnet) number is 172.16.2.0. This sample shows more bits turned on, extending the network portion and creating a secondary field extending from the end of the standard mask and using eight of the host bits. This secondary field is the subnet field and is used to represent wires (or subnetworks) inside the network. Broadcasting is supported on the internet. Broadcast messages are those you want every host on the network to see. The broadcast address is formed by using all ones within the IP address. The Cisco IOS? software supports two kinds of broadcasts: Directed broadcasts Flooding Flooded broadcasts (255.255.255.255) are not propagated, but are considered local broadcasts. Broadcasts directed into a specific network are allowed and are forwarded by the router. These directed broadcasts contain all ones in the host portion of the address. * * TCP/IP协议的使用 利用掩码子网、超网的配置 网络实验介绍 网络实验与探讨 实验内容： . * * IPX(internet packet exchange)互联网络分组交 换协议，它主要用与服务器向工作站传送数据的 netware网络层。 Tcp 为传输控制协议 ip为国际互连协议（简称网际协议） ATM是异步传输模式，它以固定长度(53字节)的 信元传送多种服务数据。 netBEUI是微软公司为小型网设计的非路由选择 协议，主要未了较老的Microsoft网络产品兼容而 设计的 网络实验