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思科路由器仿真器,用来仿7200系列得,可以在电脑上模拟路由器

Help for Cisco router simulator (dynamips-0.2.8)
================================================
Authors of this document: Fabien Devaux, Christophe Fillot, MtvE

Emulated hardware
*****************

The emulator currently supports the following platforms:
  - Cisco 7200 (NPE-100 to NPE-400)
  - Cisco 3600 (3620, 3640 and 3660)
  - Cisco 2691
  - Cisco 3725
  - Cisco 3745
  - Cisco 2600 (2610 to 2650XM)
  - Cisco 1700 (1710 to 1760)

By default, a Cisco 7206VXR with NPE-200 (256 Mb of DRAM) is emulated.

To emulate another platform, use the "-P" command line option (for example,
"-P 3725" or "-P 3600").

For the 7200, you can change the NPE type with the "-t" option. 
It is possible to select "npe-100", "npe-150", "npe-175", "npe-200", 
"npe-225", "npe-300" and "npe-400". The "npe-g1" is not working.

For the 3600, a 3640 with 128 Mb is emulated by default. You can change this 
with the "-t" option and by specifying "3620" or "3660". 
Don't forget to set the chassis type depending on your IOS image, 
a c3660 image will not run on c3640 hardware and vice-versa.

Remark: PCMCIA card emulation is not supported yet with Cisco 3600.


Command Line Options overview
*****************************

  -l <log_file>      : Set logging file (default is dynamips_log.txt)
  -j                 : Disable the JIT compiler, very slow
  --exec-area <size> : Set the exec area size (default: 64 Mb)
  --idle-pc <pc>     : Set the idle PC (default: disabled)
  --timer-itv <val>  : Timer IRQ interval check (default: 1000)

  -i <instance>      : Set instance ID
  -r <ram_size>      : Set the virtual RAM size
  -o <rom_size>      : Set the virtual ROM size
  -n <nvram_size>    : Set the NVRAM size
  -c <conf_reg>      : Set the configuration register
  -m <mac_addr>      : Set the MAC address of the chassis
                       (default: automatically generated)
  -C <cfg_file>      : Import an IOS configuration file into NVRAM
  -X                 : Do not use a file to simulate RAM (faster)
  -R <rom_file>      : Load an alternate ROM (default: embedded)
  -k <clock_div>     : Set the clock divisor (default: 4)

  -T <port>          : Console is on TCP <port>
  -U <si_desc>       : Console in on serial interface <si_desc>
                       (default is on the terminal)

  -A <port>          : AUX is on TCP <port>
  -B <si_desc>       : AUX is on serial interface <si_desc>
                       (default is no AUX port)

  --disk0 <size>     : Set PCMCIA ATA disk0: size
  --disk1 <size>     : Set PCMCIA ATA disk1: size

  -a <cfg_file>      : Virtual ATM switch configuration file
  -f <cfg_file>      : Virtual Frame-Relay switch configuration file
  -E <cfg_file>      : Virtual Ethernet switch configuration file
  -b <cfg_file>      : Virtual bridge configuration file
  -e                 : Show network device list of the host machine

Options specific to the Cisco 7200 series:

  -t <npe_type>      : Select NPE type (default: "npe-200")
  -M <midplane>      : Select Midplane ("std" or "vxr")
  -p <pa_desc>       : Define a Port Adapter
  -s <pa_nio>        : Bind a Network IO interface to a Port Adapter

Options specific to the Cisco 3600 series ("dynamips -P 3600 --help"):

  -t <chassis_type>  : Select Chassis type (default: "3640")
  --iomem-size <val> : IO memory (in percents, default: 5)
  -p <nm_desc>       : Define a Network Module
  -s <nm_nio>        : Bind a Network IO interface to a Network Module

Options specific to the Cisco 2691 series ("dynamips -P 2691 --help"):

  --iomem-size <val> : IO memory (in percents, default: 5)
  -p <nm_desc>       : Define a Network Module
  -s <nm_nio>        : Bind a Network IO interface to a Network Module

Options specific to the Cisco 3725 series ("dynamips -P 3725 --help"):

  --iomem-size <val> : IO memory (in percents, default: 5)
  -p <nm_desc>       : Define a Network Module
  -s <nm_nio>        : Bind a Network IO interface to a Network Module

Options specific to the Cisco 3745 series ("dynamips -P 3745 --help"):

  --iomem-size <val> : IO memory (in percents, default: 5)
  -p <nm_desc>       : Define a Network Module
  -s <nm_nio>        : Bind a Network IO interface to a Network Module



Command Line Options details
****************************

-k <clock_div> :

   Specify the clock divider (integer) based on the host clock.
   Alter the value to match the CISCO clock with the real time.
   The command "show clock" at the IOS' CLI will help you set this value.

--idle-pc <pc> :

   The "idle PC" feature allows you to run a router instance without having
   a 100% CPU load. This implies that you can run a larger number of instances
   per real machine.

   To determine the "idle PC", start normally the emulator with your Cisco IOS 
   image, and a totally IOS empty configuration (although not mandatory, this
   will give better results). When the image is fully booted, wait for the
   "Press RETURN to get started!" message prompt, but do not press Enter key.
   Wait about 5 seconds, then press "Ctrl-] + i". Some statistics will be 
   gathered during 10 seconds. At the end, the emulator will display a list of 
   possible values to pass to the "--idle-pc" option. You may have to try some 
   values before finding the good one. To check if the idle PC value is good, 
   just boot the Cisco IOS image, and check your CPU load when the console 
   prompt is available. If it is low, you have found a good value, keep it 
   preciously.

   Important remarks:
   ==================

      * An "idle PC" value is *specific* to a Cisco IOS image. You cannot
        boot a different IOS image without proceeding as described above.

      * Do not run the process while having the "autoconfiguration" prompt.


--exec_area <size> :

   The exec area is a pool of host memory used to store pages translated by
   the JIT (they contain the native code corresponding to MIPS code pages).



Cisco 7200 Port Adapter Description "<pa_desc>":
------------------------------------------------
   Format: slot:pa_driver

   slot: the number of the physical slot (starts from 0)

   pa_driver: the name of a Port Adapter driver in:
        - C7200-IO-FE  (FastEthernet, slot 0 only)
        - PA-FE-TX     (FastEthernet, slots 1 to 6)
        - PA-4E        (Ethernet, 4 ports)
        - PA-8E        (Ethernet, 8 ports)
        - PA-4T+       (Serial, 4 ports)
        - PA-8T        (Serial, 8 ports)
        - PA-A1        (ATM)


Cisco 3600 Network Module Description "<nm_desc>":
--------------------------------------------------
   Format: slot:nm_driver

   slot: the number of the physical slot (starts from 0)

   nm_driver: the name of a Network Module driver in:
        - NM-1E        (Ethernet, 1 port)
        - NM-4E        (Ethernet, 4 ports)
        - NM-1FE-TX    (FastEthernet, 1 port)
        - NM-4T        (Serial, 4 ports)
        - NM-16ESW     (Ethernet switch module, 16 ports)
        - Leopard-2FE  (Cisco 3660 FastEthernet in slot 0, automatically used)


Cisco 2691/3725/3745 Network Module Description "<nm_desc>":
------------------------------------------------------------
   Format: slot:nm_driver

   slot: the number of the physical slot (starts from 0)

   nm_driver: the name of a Network Module driver in:
        - NM-1FE-TX    (FastEthernet, 1 port)
        - NM-4T        (Serial, 4 ports)
        - NM-16ESW     (Ethernet switch module, 16 ports)
        - GT96100-FE   (2 integrated ports, automatically used)


NIO binding to Port Adapter "<pa_nio>" and Network Modules "<nm_nio>":
----------------------------------------------------------------------

   Format: slot:port:netio_type[:netio_parameters]

   slot       : the number of the physical slot (starts from 0)
   port       : the port in the specified slot (starts from 0)

   netio_type : host interface for communication

        unix:<local_sock>:<remote_sock>
           Use unix sockets for local communication.
           <local_sock> is created and represents the local NIC.
           <remote_sock> is the file used by the other interface.
           (ex. "/tmp/local:/tmp/remote")

        vde:<control_sock>:<local_sock>
           For use with UML (User-Mode-Linux) or VDE switches.
           VDE stands for "Virtual Distributed Ethernet".
           Please refer to : http://sourceforge.net/projects/vde/

        tap:<tap_name>
           Use a virtual ethernet device for communication.
           <tap_name> is the name of the tap device (ex. "tap0")

        gen_eth:<dev_name>
           Use a real ethernet device for communication, using libpcap 0.9
           or WinPcap. Works on Windows and Unix systems.          

           <dev_name> is the name of the Ethernet device (ex. "eth0")

           The device list can be found using the "-e" option.

        linux_eth:<dev_name>
           Use a real ethernet device for communication (Linux specific).
           <dev_name> is the name of the Ethernet device (ex. "eth0")

        udp:<local_port>:<remote_host>:<remote_port>
           Use an UDP socket for connection between remote instances.
           <local_port> is the port we listen to.
           <remote_host> is the host listening the port you want to connect to.
           <remote_port> is the port you want to connect to.
	   (ex. "1000:somehost:2000" and "2000:otherhost:1000" on the other 
           side)

        tcp_cli:<host>:<port>
           Client side of a tcp connection.
           <host> is the ip address of the server.
           <port> is the port to connect to.

        tcp_ser:<port>
           Server side of a tcp connection.
           <port> is the port to listen to.

        null
           Dummy netio (used for testing/debugging), no parameters needed.