1.访问，点击Packet Tracer 5.0 resource page，输入cisco网络学院学员用户名和密码，进入下载界面，点击Packet Tracer v5.0 Application + Tutorial Linux-Ubuntu，完成下载。
2.安装程序PacketTracer5_i386_installer-deb.bin
xyrrwcom@xyrrwcom:~$ cd /tmp
xyrrwcom@xyrrwcom:/tmp$ chmod +x PacketTracer5_i386_installer-deb.bin
xyrrwcom@xyrrwcom:/tmp$ ./PacketTracer5_i386_installer-deb.bin
Self extracting archive...
Welcome to Packet Tracer 5 Installation
Read the following End User License Agreement "EULA" carefully. You must accept the terms of this EULA to install and use Packet Tracer 5.0.
Press the Enter key to read the EULA.
Cisco Networking Academy Packet Tracer (5.0) Software License Agreement
IMPORTANT: PLEASE READ THIS PACKET TRACER SOFTWARE LICENSE AGREEMENT (THE
"AGREEMENT") CAREFULLY. DOWNLOADING, INSTALLING OR USING THE PACKET TRACER
SOFTWARE CONSTITUTES ACCEPTANCE OF THIS AGREEMENT. IF YOU DO NOT AGREE TO ALL
OF THE TERMS OF THIS AGREEMENT, THEN CISCO SYSTEMS, INC. ("CISCO") IS
UNWILLING TO LICENSE THE SOFTWARE TO YOU AND YOU ARE NOT AUTHORIZED TO
DOWNLOAD, INSTALL OR USE THE SOFTWARE.
3.安装成功界面
应用程序－》互联网－》Packet Tracer 5.0