Let's look at Software:
Packet Tracer is Cisco's Cisco Networking Academy for the development of a simulation software, an innovative and powerful network simulation tool for practice, discovery and troubleshooting. It can be used to simulate the experimental CCNA.
Cisco Packet Tracer provides the official website here Download: poke me .
Installation and familiar interface and operation
1. After installing the start, the software interface shown in Figure:
2. We added a 2600 XM router in the workspace. First we select the device type library router, click a specific device libraries 2600 XM router, then a click in the workspace can add the 2600 XM router to work in the area. We use the same way to add a 2950-24 switch and two PC. Note that we can hold down the Ctrl key and then click the appropriate equipment to continuously add a device.
3. Next we want to select the appropriate line to connect the devices. We can choose different interfaces to connect to a specific line between devices based on, of course, if we just want to quickly build a network topology regardless of the selected line we can choose to automatically connect.
Both ends of each cable has a different color dots, they represent what the meaning of it?
| Link dot state | meaning |
|---|---|
| bright green | Physical connection is ready, there is no indication Line Protocol status |
| Flashing green | Connection activated |
| red | Physically connected nowhere, no signal |
| yellow | Switch port is "blocked" state |
Glossary:
- DHCP Dynamic Host Control Protocol
- subnet Mask Subnet Mask
- default Gateway (default route) Default Gateway
- router router
- switches switch
- hubs Hub
- wireless devices wireless Devices
- WAN emulation WAN simulation
界面基本组件介绍：
Routers 路由器（Ctrl+Alt+R）
Switches 交换机（Ctrl+Alt+S）
Hubs 集线器（Ctrl+Alt+U）
Wieless Devices 无线设备（Ctrl+Alt+W）
Connections 通讯链路（Ctrl+Alt+O）
我们一般选择连接线中的第一个，它会帮自动选择合适的链路的类型
End Devices 终端设备（Ctrl+Alt+V）
WAN Emualtion WAN仿真（Ctrl+Alt+N）
Custom Made Devices 定制设备（Ctrl+Alt+T）
Multiuser Connection 多用户连接器（Ctrl+Alt+N）
接下来用一个具体的例子来介绍基本使用方法
最终的效果图：
① 192.168.0.*/24
② 192.168.1.*/24
③ 192.168.2.*/24
④ 192.168.3.*/24
⑤ 192.168.4.*/24
- 首先添加如下设备：
- 当我们想要想使用自动连接线连接各个设备时，发现报错：
原因在于默认的2620XM路由器端口不够用，我们需要在设备互连前要添加所需的路由器模块（添加模块时注意要关闭电源）。我们为 Router 0 添加NM－4E模块（将模块添加到空缺处即可，删除模块时将模块拖回到原处即可）。
关闭后再次将NM-4E模块拖拽进空缺处，然后启动路由器电源，即可。
上面三个路由器都重复此操作，全部换上NM-4E路由单元。
构成以下网络拓扑图：
- 红色灯表示物理连接不通，没有信号，如何把红色灯变成绿色呢？
很简单，只需把已连接的端口状态打开即可。
如图，我们可以把鼠标移动到红点上，会显示当前的线路连接的是设备的哪个端口。
找到对应的端口后，鼠标单击设备，把对应端口的Port Status打开。
重复以上步骤，把所有的指示灯全部变绿。
- However, we need further configuration, it can really Unicom.
NM-4E installed router routing unit having 5 ports may be:
The port configuration is the key route.
We can see Router0 with PC0 machine is connected to Fa0 / 0 port.
The configuration Router0 FastEthernet0 / 0 interface to:
configure the host PC0 IP address information (corresponding to the above must ensure that the interface configuration matching the !!!! Router0):
For each port router must be guaranteed a unique IP address.
Repeat the above steps until all the devices are assigned a unique IP address, and router port settings Configure.
