安装包官方源里就有，不过版本比较老:
sudo apt-get install dynamips dynagen libpcap0.8
如果需要最新版本的话，可以到官网上自行下载编译
dynamips:www.ipflow.utc.fr/blog/
dynagen:dynagen.org
libpcap:www.tcpdump.org
安装完成后建议新建一个文件夹用于存放IOS和NET文件
运行：
su
nice dynamips -H 7200
dynagen ***.net //***为filename
NET文件配置：
修改IOS存放目录及tmp文件夹位置
将NIO_gen_eth:\**** 修改为NIO_linux_eth:eth0
解决unable to create TCP sockets问题（关闭dynamips后再启动问题）：
这是老版本的一个BUG，不能自动关闭进程，解决办法：
ps aux 找到dynamips相应的pid
kill pid ***//***为对应pid号
收工，接下来的操作和windows下一模一样。
附我的NET文件（工大瑞普NP——STAT）：
autostart = False

[localhost]
    port = 7200
    udp = 10000
    
    [[router R1]]
        image = /home/janwen/dynamips/IOS/unzip-c7200-js-mz.123-20.bin
        model = 7200
        console = 3001
        npe = npe-400
        ram = 96
        confreg = 0x2142
        exec_area = 64
        mmap = False
        slot0 = PA-C7200-IO-FE
        slot1 = PA-4T
        slot2 = PA-4T
        slot3 = PA-A1
        f0/0 = SW1 1
        s1/1 = R2 s1/0
        s1/2 = FR1 1
        a3/0 = AT1 1
        idlepc = 0x60671d18
    
    [[router R2]]
        image = /home/janwen/dynamips/IOS/unzip-c7200-js-mz.123-20.bin
        model = 7200
        console = 3002
        npe = npe-400
        ram = 96
        confreg = 0x2142
        exec_area = 64
        mmap = False
        slot0 = PA-C7200-IO-FE
        slot1 = PA-4T
        slot2 = PA-4T
        f0/0 = SW1 2
        s1/1 = R3 s1/0
        s1/2 = FR1 2
    
    [[router R3]]
        image = /home/janwen/dynamips/IOS/unzip-c7200-js-mz.123-20.bin
        model = 7200
        console = 3003
        npe = npe-400
        ram = 96
        confreg = 0x2142
        exec_area = 64
        mmap = False
        slot0 = PA-C7200-IO-FE
        slot1 = PA-4T
        slot2 = PA-4T
        f0/0 = SW1 3
        s1/1 = R4 s1/0
        s1/2 = FR1 3
    
    [[router R4]]
        image = /home/janwen/dynamips/IOS/unzip-c7200-js-mz.123-20.bin
        model = 7200
        console = 3004
        npe = npe-400
        ram = 96
        confreg = 0x2142
        exec_area = 64
        mmap = False
        slot0 = PA-C7200-IO-FE
        slot1 = PA-4T
        slot2 = PA-4T
        f0/0 = SW1 4
        s1/1 = R5 s1/0
        s1/2 = FR1 4
    
    [[router R5]]
        image = /home/janwen/dynamips/IOS/unzip-c7200-js-mz.123-20.bin
        model = 7200
        console = 3005
        npe = npe-400
        ram = 96
        confreg = 0x2142
        exec_area = 64
        mmap = False
        slot0 = PA-C7200-IO-FE
        slot1 = PA-4T
        slot2 = PA-4T
        f0/0 = SW1 5
        s1/1 = R6 s1/0
        s1/2 = FR1 5
    
    [[router R6]]
        image = /home/janwen/dynamips/IOS/unzip-c7200-js-mz.123-20.bin
        model = 7200
        console = 3006
        npe = npe-400
        ram = 96
        confreg = 0x2142
        exec_area = 64
        mmap = False
        slot0 = PA-C7200-IO-FE
        slot1 = PA-4T
        slot2 = PA-4T
        f0/0 = SW1 6
        s1/1 = R7 s1/0
        s1/2 = FR1 6
    
    [[router R7]]
        image = /home/janwen/dynamips/IOS/unzip-c7200-js-mz.123-20.bin
        model = 7200
        console = 3007
        npe = npe-400
        ram = 96
        confreg = 0x2142
        exec_area = 64
        mmap = False
        slot0 = PA-C7200-IO-FE
        slot1 = PA-4T
        slot2 = PA-4T
        f0/0 = SW1 7
        s1/1 = R8 s1/0
        s1/2 = FR1 7
    
    [[router R8]]
        image = /home/janwen/dynamips/IOS/unzip-c7200-js-mz.123-20.bin
        model = 7200
        console = 3008
        npe = npe-400
        ram = 96
        confreg = 0x2142
        exec_area = 64
        mmap = False
        slot0 = PA-C7200-IO-FE
        slot1 = PA-4T
        slot2 = PA-4T
        slot3 = PA-A1
        f0/0 = SW1 8
        s1/2 = FR1 8
        a3/0 = AT1 2
    
    [[ATMSW AT1]]
        1:1:100 = 2:8:800
    
    [[ethsw SW1]]
        1 = dot1q 1
        2 = dot1q 1
        3 = dot1q 1
        4 = dot1q 1
        5 = dot1q 1
        6 = dot1q 1
        7 = dot1q 1
        8 = dot1q 1
        9 = access 1 NIO_linux_eth:eth0
    
    [[FRSW FR1]]
        1:102 = 2:201
        1:103 = 3:301
        1:104 = 4:401
        1:105 = 5:501
        1:106 = 6:601
        1:107 = 7:701
        1:108 = 8:801
        2:203 = 3:302
        2:204 = 4:402
        2:205 = 5:502
        2:206 = 6:602
        2:207 = 7:702
        2:208 = 8:802
        3:304 = 4:403
        3:305 = 5:503
        3:306 = 6:603
        3:307 = 7:703
        3:308 = 8:803
        4:405 = 5:504
        4:406 = 6:604
        4:407 = 7:704
        4:408 = 8:804
        5:506 = 6:605
        5:507 = 7:705
        5:508 = 8:805
        6:607 = 7:706
        6:608 = 8:806
        7:708 = 8:807