這個文章大部分轉網友的作品
環境 : centos 5.6
軟體: dynamic.cisco-ios 1: 下載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 chmod x /usr/local/bin/dynamips 2: 安裝 需要用到的 libs. wget http://www.mr511.de/software/libelf-0.8.10.tar.gz 編譯安裝： ./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:下載 ios文件. 這裡我以3640路由做例子: (其他ios 就自己去下了. 根據dynamics版本來看他所支持的ios) wget ftp://wolf:colorwolf5768@ftp.microwolf.net/nettools/ios/c3640-i-mz.122-13.T1.bin wget http://dl.52zy.com:888/IOS/c3640-i-mz.122-13.T1.bin 4:開始啟動dynamips,並初始化路由: 用法如下： dynamips -P <需要模擬的路由類型> -p 槽號:模塊名 <對應路由的ISO文件名> 路由的類型,目前可以是7200、3600、2691、3725或3745,預設是7200. -p後面跟的是槽號:模塊名,表示那個埠模塊插在那個物理槽位（從0開始）中,具體的命令用法請查看官方文檔. 下面我們來模擬一台Cisco 3640,其中slot0接了一個快速乙太網板,slot1接了一個4埠的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: [url]http://www.cisco.com/tac[/url] 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 --- 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: [url]http://www.cisco.com/tac[/url] 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 其他模擬訓練,就可以自己去找教材看了, 這個就是一個 3640的路由器了, 如果要結束 模擬器, 可以另外開一個終端,然後 killall dynamips 注: 你的Linux環境必須要有make,gcc,libpcap等,可以用 yum install mak gcc libpcap*來安裝. 有的機器啟動模擬器的時候會出現一下問題： dynamips: error while loading shared libraries: libpcap.so: cannot open shared object file: No such file or directory 解決方法：ln -s /usr/lib/libpcap.so.0.9.4 /usr/lib/libpcap.so 這時候在啟動模擬器就ok了[火星人 ] 在Centos 5.6下安裝 dynamips已經有664次圍觀
