Linux用dynamic模拟cisco路由器

运维 系统运维
环境 : centos5.2.软件: dynamic.cisco-ios

环境 : centos5.2

软件: dynamic.cisco-ios

1: 下载dynamic bin文件 .

    wget http://www.ipflow.utc.fr/dynamips/dynamips-0.2.6-RC4-x86.bin

    mv dynamips-0.2.6-RC4-x86.bin /usr/local/bin/dynamips

2: 安装 需要用到的 libs.

    wget http://www.mr511.de/software/libelf-0.8.10.tar.gz

编译安装:

    ./configure --enable-gnu-names

    make -j7 DEPSHALIBS="-lc"

    make install

    cp -r  /usr/local/lib/libelf.so.0 /usr/lib/

    cp  -r /usr/local/lib/libelf-0.8.10.so /usr/lib/

3:下载 ios文件. 这里我以3640路由做例子: (其他ios 就自己去下了. 根据dynamics版本来看他所支持的ios)

    wget ftp://wolf:colorwolf5768@ftp.microwolf.net/nettools/ios/c3640-i-mz.122-13.T1.bin

4:开始启动dynamips,并初始化路由:

用法如下:

dynamips -P <需要模拟的路由类型> -p 槽号:模块名 <对应路由的ISO文件名>

路由的类型,目前可以是7200、3600、2691、3725或3745,缺省是7200。

-p后面跟的是槽号:模块名,表示那个端口模块插在那个物理槽位(从0开始)中,具体的命令用法请查看官方文档。

下面我们来模拟一台Cisco 3640,其中slot0接了一个快速以太网板,slot1接了一个4端口的E1。

    dynamips -P 3600 -p:NM-1FE-TX -p 1:NM-4T c3640-i-mz.122-13.T1.bin

    Cisco 7200 Simulation Platform (version 0.2.6-RC4-x86)

    Copyright (c) 2005,2006 Christophe Fillot.

    Build date: Nov 15 2006 23:05:16

    IOS image file: c3640-i-mz.122-13.T1.bin

    CPU0: carved JIT exec zone of 64 Mb into 2048 pages of 32 Kb.

    NVRAM is empty, setting config register to 0x2142

    C3600 instance 'default' (id 0):

    VM Status  : 0

    RAM size   : 128 Mb

    NVRAM size : 128 Kb

    Chassis    : 3640

    IOS image  : c3640-i-mz.122-13.T1.bin

    Loading ELF file 'c3640-i-mz.122-13.T1.bin'...

    ELF entry point: 0x80008000

    C3600 'default': starting simulation (CPU0 PC=0xffffffffbfc00000), JIT enabled.

    ROMMON emulation microcode.

    Launching IOS image at 0x80008000...

    Self decompressing the image : #################################################  ###################### [OK]

    Invalid iomem value in ROM (5). Smart-init will

    now run to compute a valid value

    iomem percentage may need to be reset manually

    Smart Init is enabled

    smart init is sizing iomem

    ID            MEMORY_REQ                 TYPE

    000044          0X0004FE00 Single Port Fast Ethernet

    000054          0X0004E480 4T Mueslix Serial

    0X000F3BB0 public buffer pools

    0X00211000 public particle pools

    TOTAL:          0X003A2E30

    If any of the above Memory Requirements are

    "UNKNOWN", you may be using an unsupported

    configuration or there is a software problem and

    system operation may be compromised.

    Rounded IOMEM up to: 4Mb.

    Using 3 percent iomem. [4Mb/128Mb]

    Restricted Rights Legend

    Use, duplication, or disclosure by the Government is

    subject to restrictions as set forth in subparagraph

    (c) of the Commercial Computer Software - Restricted

    Rights clause at FAR sec. 52.227-19 and subparagraph

    (c) (1) (ii) of the Rights in Technical Data and Computer

    Software clause at DFARS sec. 252.227-7013.

    cisco Systems, Inc.

    170 West Tasman Drive

    San Jose, California 95134-1706

    Cisco Internetwork Operating System Software

    IOS (tm) 3600 Software (C3640-I-M), Version 12.2(13)T1,  RELEASE SOFTWARE (fc1)

    TAC Support: http://www.cisco.com/tac

    Copyright (c) 1986-2003 by cisco Systems, Inc.

    Compiled Fri 03-Jan-03 15:10 by ccai

    Image text-base: 0x60008930, data-base: 0x60C1A000

    cisco 3640 (R4700) processor (revision 0xFF) with 126976K/4096K bytes of memory.

    Processor board ID 00000000

    R4700 CPU at 100Mhz, Implementation 33, Rev 1.2

    Bridging software.

    X.25 software, Version 3.0.0.

    1 FastEthernet/IEEE 802.3 interface(s)

    4 Serial network interface(s)

    DRAM configuration is 64 bits wide with parity enabled.

    125K bytes of non-volatile configuration memory.

    8192K bytes of processor board System flash (Read/Write)

    --- System Configuration Dialog ---

#p#

Would you like to enter the initial configuration dialog? [yes/no]: y

    At any point you may enter a question mark '?' for help.

    Use ctrl-c to abort configuration dialog at any prompt.

    Default settings are in square brackets '[]'.

    Basic management setup configures only enough connectivity

    for management of the system, extended setup will ask you

    to configure each interface on the system

    Would you like to enter basic management setup? [yes/no]: n

    First, would you like to see the current interface summary? [yes]: y

    Any interface listed with OK? value "NO" does not have a valid configuration

    Interface                  IP-Address      OK? Method Status                Prot  ocol

    FastEthernet0/0            unassigned      NO  unset  up                    up

    Serial1/0                  unassigned      NO  unset  up                    down

    Serial1/1                  unassigned      NO  unset  up                    down

    Serial1/2                  unassigned      NO  unset  up                    down

    Serial1/3                  unassigned      NO  unset  up                    down

    Configuring global parameters:

    Configuring global parameters:

    Enter host name [Router]: croutera3640

    The enable secret is a password used to protect access to

    privileged EXEC and configuration modes. This password, after

    entered, becomes encrypted in the configuration.

    Enter enable secret: aaa

    The enable password is used when you do not specify an

    enable secret password, with some older software versions, and

    some boot images.

    Enter enable password: aaa1

    The virtual terminal password is used to protect

    access to the router over a network interface.

    Enter virtual terminal password: aaa2

    Configure SNMP Network Management? [yes]: n

    Configure IP? [yes]: y

    Configure IGRP routing? [yes]: n

    Configure RIP routing? [no]: n

    Configure bridging? [no]: n

    Async lines accept incoming modems calls. If you will have

    users dialing in via modems, configure these lines.

    Configure Async lines? [yes]: n

    Configuring interface parameters:

    Do you want to configure FastEthernet0/0  interface? [yes]: y

    Use the 100 Base-TX (RJ-45) connector? [yes]: y

    Operate in full-duplex mode? [no]: y

    Configure IP on this interface? [yes]: 216.16.16.77

    % Please answer 'yes' or 'no'.

    Configure IP on this interface? [yes]: y

    IP address for this interface: 216.16.16.77

    Subnet mask for this interface [255.255.255.0] : 255.255.255.0

    Class C network is 216.16.16.0, 24 subnet bits; mask is /24

    Do you want to configure Serial1/0  interface? [yes]: y

    Configure IP on this interface? [yes]: y

    Configure IP unnumbered on this interface? [no]: n

    IP address for this interface: 172.16.0.5

    Subnet mask for this interface [255.255.0.0] : 255.255.255.252

    Class B network is 172.16.0.0, 30 subnet bits; mask is /30

    Do you want to configure Serial1/1  interface? [yes]: n

    Do you want to configure Serial1/2  interface? [yes]: n

    Do you want to configure Serial1/3  interface? [yes]: n

    The following configuration command script was created:

    hostname croutera3640

    enable secret 5 $1$23Hu$R4Fvrz7dFHw.sJesE4kww.

    enable password aaa1

    line vty 0 4

    password aaa2

    no snmp-server

    !

    ip routing

    no bridge 1

    !

    interface FastEthernet0/0

    media-type 100BaseX

    full-duplex

    ip address 216.16.16.77 255.255.255.0

    !

    interface Serial1/0

    ip address 172.16.0.5 255.255.255.252

    !

    interface Serial1/1

    shutdown

    no ip address

    !

    interface Serial1/2

    shutdown

    no ip address

    !

    interface Serial1/3

    shutdown

    no ip address

    dialer-list 1 protocol ip permit

    dialer-list 1 protocol ipx permit

    !

    end

    [0] Go to the IOS command prompt without saving this config.

    [1] Return back to the setup without saving this config.

    [2] Save this configuration to nvram and exit.

    Enter your selection [2]: 2

    media-type 100BaseX

    ^

    % Invalid input detected at '^' marker.

    Building configuration...

    Use the enabled mode 'configure' command to modify this configuration.

    Press RETURN to get started!

    *Mar  1 00:00:03.767: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed sta

    *Mar  1 00:00:03.771: %LINK-3-UPDOWN: Interface Serial1/0, changed state to

    *Mar  1 00:00:03.775: %LINK-3-UPDOWN: Interface Serial1/1, changed state to

    *Mar  1 00:00:03.779: %LINK-3-UPDOWN: Interface Serial1/2, changed state to

    *Mar  1 00:00:03.783: %LINK-3-UPDOWN: Interface Serial1/3, changed state to

    *Mar  1 00:00:04.767: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEt

    *Mar  1 00:00:04.771: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial

    *Mar  1 00:00:04.775: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial

    *Mar  1 00:00:04.779: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial

    *Mar  1 00:00:04.783: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial

    *Mar  1 00:00:32.399: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial

    *Mar  1 00:00:32.471: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial

    *Mar  1 00:00:32.535: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial

    *Mar  1 00:00:32.615: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial

    *Mar  1 00:25:41.063: %LINK-5-CHANGED: Interface Serial1/1, changed state to

    *Mar  1 00:25:41.267: %LINK-5-CHANGED: Interface Serial1/2, changed state to

    *Mar  1 00:25:41.271: %LINK-5-CHANGED: Interface Serial1/3, changed state to

    *Mar  1 00:25:45.547: %SYS-5-RESTART: System restarted --

    Cisco Internetwork Operating System Software

    IOS (tm) 3600 Software (C3640-I-M), Version 12.2(13)T1,  RELEASE SOFTWARE (f

    TAC Support: http://www.cisco.com/tac

    Copyright (c) 1986-2003 by cisco Systems, Inc.

    Compiled Fri 03-Jan-03 15:10 by ccai

    *Mar  1 00:25:45.575: %SNMP-5-COLDSTART: SNMP agent on host croutera3640 is

    croutera3640>en

    Password:

    Password:

    Password:

    % Bad secrets

    croutera3640>en

    Password:

    croutera3640#sh run

    Building configuration...

    Current configuration : 804 bytes

    !

    version 12.2

    service timestamps debug datetime msec

    service timestamps log datetime msec

    no service password-encryption

    !

    hostname croutera3640

    !

    enable secret 5 $1$23Hu$R4Fvrz7dFHw.sJesE4kww.

    enable password aaa1

    !

    ip subnet-zero

    !

    !

    !

    !

    !

    !

    !

    interface FastEthernet0/0

    ip address 216.16.16.77 255.255.255.0

    croutera3640#exit

其他模拟训练,就可以自己去找教材看了, 这个就是一个 3640的路由器了, 如果要结束 模拟器, 可以另外开一个终端,然后 killall dynamips

注:  你的Linux环境必须要有make,gcc,libpcap等,可以用 yum install mak gcc libpcap*来安装.

【编辑推荐】

  1. Linux设备驱动开发详解
  2. 嵌入式系统Linux内核开发实战指南
  3. Linux系统最佳实践工具:命令行技术
责任编辑:张燕妮 来源: 中国IT实验室
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