Cisco 7200 Simulator and windows platform installation

http://www.ipflow.utc.fr/index.php/Cisco_7200_Simulator

I was trying to install this simulator for winodws paltform , but i could not get success

I followed the instructions, but may be I missed something, which I did not figure out.

Download The current release is 0.2.4, published Feb 14, 2006 (you can consult the README file (http://www.ipflow.utc.fr/dynamips/README-0.2.4.txt)).

You have to download only one binary file corresponding to your architecture:

Executable for Windows (with Cygwin DLL) (http://www.ipflow.utc.fr/dynamips/dynamips-0.2.4-cygwin.zip)

If you are using the Windows version, you have to download and install the WinPcap library (http://www.winpcap.org/). It is now possible to access the Ethernet card of host machine to send/receive packets on the LAN.

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Comments

mikej412

zillah wrote:

I was trying to install this simulator for winodws paltform , but i could not get success

I followed the instructions, but may be I missed something, which I did not figure out.

I've only run the Linux version with the Dynagen front-end... I think there is the windows installer for that which simplifies the configuration of Dynamips.

Obvious questions -- do you have a 7200 IOS image? What was the error? Did the Windows install fail (bad download, corrupt file)? Or did everything install "correctly" that you can tell.... and then what?

zillah

Thanks mikej412

Obvious questions -- do you have a 7200 IOS image?

I did not realize that I should have got IOS image, then I have been told , that i should get the IOS image first.

romain

I already tried to use it but each I tried I only get a router with a single ethernet interface...

Can someone explain me how to use it ?

I found some examples but same results...

Nawakette

Hello !

I've the following IOS image c7200-js-mz.124-3.bin

When I run the command dynamips c7200-js-mz.124-3.bin it doesn't work as you can see below :

Cisco 7200 Simulation Platform (version 0.2.4-x86)
Copyright (c) 2005,2006 Christophe Fillot.

IOS image file: c7200-js-mz.124-3.bin

NVRAM is empty, setting config register to 0x2142
C7200: Warning, no MAC address set.

CPU0 Device list:
ram : 0x000000000000 (0x10000000)
rom : 0x00001fc00000 (0x00400000)
remote_ctrl : 0x000011000000 (0x00001000)
bootflash : 0x00001a000000 (0x00800000)
nvram : 0x00001e000000 (0x00020000)
zero : 0x00001f000000 (0x00c00000)
mp_fpga : 0x00001e800000 (0x00001000)
io_fpga : 0x00001e840000 (0x00001000)
pci_io : 0x000100000000 (0x00200000)
gt64010 : 0x000014000000 (0x00001000)
sram0 : 0x00004b000000 (0x00200000)
sram0_alias : 0x00014b000000 (0x00200000)
sram0_bswap : 0x00004b800000 (0x00200000)
sram1 : 0x00004b200000 (0x00200000)
sram1_alias : 0x00014b200000 (0x00200000)
sram1_bswap : 0x00004ba00000 (0x00200000)
C7200-IO-FE(0) : 0x000048000000 (0x00800000)

PCI Bus "MB0/MB1/MB2" Device list:
clpd6729 : ID 1013:1100, Bus 0, Dev. 5, Func. 0
C7200-IO-FE(0) : ID 1011:0009, Bus 0, Dev. 6, Func. 0, IRQ: 2
sram1 : ID 1137:0005, Bus 10, Dev. 0, Func. 0
sram0 : ID 1137:0005, Bus 4, Dev. 0, Func. 0
dec21050 : ID 1011:0001, Bus 10, Dev. 3, Func. 0
dec21050 : ID 1011:0001, Bus 4, Dev. 3, Func. 0
dec21050 : ID 1011:0001, Bus 10, Dev. 2, Func. 0
dec21050 : ID 1011:0001, Bus 4, Dev. 2, Func. 0
dec21050 : ID 1011:0001, Bus 10, Dev. 1, Func. 0
dec21050 : ID 1011:0001, Bus 4, Dev. 1, Func. 0
dec21050 : ID 1011:0001, Bus 0, Dev. 4, Func. 0
dec21050 : ID 1011:0001, Bus 0, Dev. 3, Func. 0
dec21050 : ID 1011:0001, Bus 0, Dev. 2, Func. 0
dec21050 : ID 1011:0001, Bus 0, Dev. 1, Func. 0
gt64010 : ID 11ab:0146, Bus 0, Dev. 0, Func. 0, IRQ: 4

Cisco IOS load failed.

Any idea ?

Thanks

Nawakette

I've also tried the following commands (without any success) :

dynamips -p 0:C7200-IO-FE:udp:10001:127.0.0.1:10002 c7200-js-mz.124-3.bin

Cisco 7200 Simulation Platform (version 0.2.4-x86)
Dopyright (c) 2005,2006 Christophe Fillot.

IOS image file: c7200-js-mz.124-3.bin

NVRAM is empty, setting config register to 0x2142
C7200: Warning, no MAC address set.
C7200_pa_create: unable to parse '0:C7200-IO-FE:udp:10001:127.0.0.1:10002'
C7200: Unable to create Port Adapter "0:C7200-IO-FE:udp:10001:127.0.0.1:10002"
Unable to initialize the C7200 platform hardware.

And also :

dynamips -p 0:C7200-IO-FE:gen_eth:"\Device\NPF_{here_is_my_eth_card_number}" c7200-js-mz.124-3.bin

Cisco 7200 Simulation Platform (version 0.2.4-x86)
Copyright (c) 2005,2006 Christophe Fillot.

IOS image file: c7200-js-mz.124-3.bin

NVRAM is empty, setting config register to 0x2142
C7200: Warning, no MAC address set.
c7200_pa_create: unable to parse '0:C7200-IO-FE:gen_eth:\Device\NPF_{here_is_my_eth_card_number}'
C7200: Unable to create Port Adapter "0:C7200-IO-FE:gen_eth:\Device\NPF_{here_is_my_eth_card_number}"
Unable to initialize the C7200 platform hardware.

fillot

Hello all,

Thanks for pointing this out, there are errors in the README file (it was not updated appropriately for the examples).

Nawakette> For the IOS loading error, I suggest that you use the 0.2.5-pre20, it has a fix for the Windows platform concerning this problem.

Niamor> You're right, the examples are incorrect, sorry for that. I updated the README file provided on the home page with the correct syntax.

Example: dynamips -p 0:C7200-IO-FE:udp:10001:127.0.0.1:10002 c7200-js-mz.124-3.bin

In fact, with 0.2.4, the syntax is :

dynamips -p 0:C7200-IO-FE -s 0:0:udp:10001:127.0.0.1:10002 [...]

The -p option is used to put a Port Adapter in the specified slot, and the -s option is used to bind a network descriptor to the specified slot + sub-interface (before the 0.2.4, only PA with 1 port were supported).

Another example that shows how to bind a network descriptor to the interface Serial2/4:

dynamips -p 2:PA-8T -s 2:4:udp:10001:127.0.0.1:10002 [...]

On Windows platform, the IOS image name must be the last parameter on the command line.

Don't hesitate to ask questions on the blog if you have problems

Chris.

Nawakette

Thank you for your message Chris.

Could you please tell me where I can download this version 0.2.5-pre20 ?

Nawakette

I'm sorry tu disturb you but I'm not sure that I'm using the right procedure...

Is it necessary to run dynamips c7200-js-mz.124-3.bin and, afterwards, dynamips -p 0:C7200-IO-FE -s 0:0:udp:10001:127.0.0.1:10002 c7200-js-mz.124-3.bin as you explained below ?

mikej412

fillot wrote:

dynamips -p 2:PA-8T -s 2:4:udp:10001:127.0.0.1:10002 [...]

and that command line without the rogue Emoticon...

dynamips -p 2:PA-8T -s 2:4:udp:10001:127.0.0.1:10002 [...]

fillot wrote:

Don't hesitate to ask questions on the blog if you have problems

I think this is the link, right?
http://www.ipflow.utc.fr/blog/

The Dynagen (front-end for use with the Dynamips Cisco 7200 router emulator) link is on the blog page link above.... but here is the direct link
http://dyna-gen.sourceforge.net/

Nawakette wrote:

Could you please tell me where I can download this version 0.2.5-pre20 ?

Found this on the blog page link I almost got posted before you asked...
Here is the direct link....
http://www.ipflow.utc.fr/blog/?p=26

zillah wrote:

http://www.ipflow.utc.fr/index.php/Cisco_7200_Simulator

And to make it easier for anyone else checking out this thread -- here is the link that started it all....
http://www.ipflow.utc.fr/index.php/Cisco_7200_Simulator

Nawakette

Many thanks for the link Mike.

Unfortunately, with the version 0.2.5-pre20, problems still occur...

dynamips-w2000 c7200-js-mz.124-3.bin
Cisco 7200 Simulation Platform (version 0.2.5-pre20-x86)
Copyright (c) 2005,2006 Christophe Fillot.

Instance ID set to 0.
IOS image file: c7200-js-mz.124-3.bin

NVRAM is empty, setting config register to 0x2142
C7200 instance 'default' (id 0):
VM Status : 0
RAM size : 256 Mb
IOMEM size : 0 Mb
NVRAM size : 128 Kb
NPE model : npe-200
Midplane : vxr
IOS image : c7200-js-mz.124-3.bin

VM "default" (0) Device list:
ram : 0x000000000000 (0x10000000)
gt64010 : 0x000014000000 (0x00001000)
remote_ctrl : 0x000016000000 (0x00001000)
bootflash : 0x00001a000000 (0x00800000)
nvram : 0x00001e000000 (0x00020000)
mp_fpga : 0x00001e800000 (0x00001000)
io_fpga : 0x00001e840000 (0x00001000)
zero : 0x00001f000000 (0x00c00000)
rom : 0x00001fc00000 (0x00400000)
sram0 : 0x00004b000000 (0x00200000)
sram1 : 0x00004b200000 (0x00200000)
sram0_bswap : 0x00004b800000 (0x00200000)
sram1_bswap : 0x00004ba00000 (0x00200000)
pci_io : 0x000100000000 (0x00200000)
sram0_alias : 0x00014b000000 (0x00200000)
sram1_alias : 0x00014b200000 (0x00200000)

PCI Bus "MB0/MB1/MB2" Device list:
C7200-IO-FE(0) : ID 1011:0009, Bus 0, Dev. 6, Func. 0, IRQ: 2
clpd6729 : ID 1013:1100, Bus 0, Dev. 5, Func. 0
sram1 : ID 1137:0005, Bus 10, Dev. 0, Func. 0
sram0 : ID 1137:0005, Bus 4, Dev. 0, Func. 0
dec21050 : ID 1011:0001, Bus 10, Dev. 3, Func. 0
dec21050 : ID 1011:0001, Bus 4, Dev. 3, Func. 0
dec21050 : ID 1011:0001, Bus 10, Dev. 2, Func. 0
dec21050 : ID 1011:0001, Bus 4, Dev. 2, Func. 0
dec21050 : ID 1011:0001, Bus 10, Dev. 1, Func. 0
dec21050 : ID 1011:0001, Bus 4, Dev. 1, Func. 0
dec21050 : ID 1011:0001, Bus 0, Dev. 4, Func. 0
dec21050 : ID 1011:0001, Bus 0, Dev. 3, Func. 0
dec21050 : ID 1011:0001, Bus 0, Dev. 2, Func. 0
dec21050 : ID 1011:0001, Bus 0, Dev. 1, Func. 0
gt64010 : ID 11ab:0146, Bus 0, Dev. 0, Func. 0, IRQ: 4

C7200: Cisco IOS load failed.
Unable to initialize router instance.

mikej412

The Linux Version is a lot easier to use -- for a UNIX person.

This is the Dynagen Windows installer for Dynamips for Windows Setup 0.2.5-pre20-0.3.1-1 -- from the Dynagen page download link http://sourceforge.net/project/showfiles.php?group_id=160317

Don't forget the Winpcap http://www.winpcap.org/

I've got one instance running on a P4 Windows 2000 Professional machine.

Router#show version
Cisco IOS Software, 7200 Software (C7200-JS-M), Version 12.4(3), RELEASE SOFTWAR
E (fc2)
Technical Support: [url]http://www.cisco.com/techsupport[/url]
Copyright (c) 1986-2005 by Cisco Systems, Inc.
Compiled Fri 22-Jul-05 09:12 by hqluong

ROM: ROMMON Emulation Microcode
BOOTLDR: ROMMON
Router uptime is 1 minute
System returned to ROM by unknown reload cause - suspect boot_data[BOOT_COUNT] 0
x0, BOOT_COUNT 0, BOOTDATA 19
System image file is "tftp://255.255.255.255/unknown"

Cisco 7206VXR (NPE200) processor (revision B) with 245760K/16384K bytes of memor
y.
Processor board ID 4294967295
R5000 CPU at 200MHz, Implementation 35, Rev 1.2
6 slot VXR midplane, Version 2.1

Last reset from power-on

Number of Fast PAs = 1
Number of Fast+Medium PAs = 1
Total number of PA bandwidth points consumed = 200
Please refer to the following document "Cisco 7200 Series Port
Adaptor Hardware Configuration Guidelines" on CCO <www.cisco.com>,
for c7200 bandwidth points oversubscription/usage guidelines.

1 FastEthernet interface
125K bytes of NVRAM.
4096K bytes of packet SRAM memory.

8192K bytes of Flash internal SIMM (Sector size 256K).
Configuration register is 0x2142 (will be 0xDEBD at next reload)

Router#

I'm loading the 2nd instance now.... oops, still didn't unzip to speed up the emulated load....

C:\Program Files\Dynamips>dynamips -i 1 c7200-js-mz.124-3.bin
Cisco 7200 Simulation Platform (version 0.2.5-pre20-x86)
Copyright (c) 2005,2006 Christophe Fillot.

Instance ID set to 1.
IOS image file: c7200-js-mz.124-3.bin

NVRAM is empty, setting config register to 0x2142
C7200 instance 'default' (id 1):
  VM Status  : 0
  RAM size   : 256 Mb
  IOMEM size : 0 Mb
  NVRAM size : 128 Kb
  NPE model  : npe-200
  Midplane   : vxr
  IOS image  : c7200-js-mz.124-3.bin


VM "default" (1) Device list:
   ram            : 0x000000000000 (0x10000000)
   gt64010        : 0x000014000000 (0x00001000)
   remote_ctrl    : 0x000016000000 (0x00001000)
   bootflash      : 0x00001a000000 (0x00800000)
   nvram          : 0x00001e000000 (0x00020000)
   mp_fpga        : 0x00001e800000 (0x00001000)
   io_fpga        : 0x00001e840000 (0x00001000)
   zero           : 0x00001f000000 (0x00c00000)
   rom            : 0x00001fc00000 (0x00400000)
   sram0          : 0x00004b000000 (0x00200000)
   sram1          : 0x00004b200000 (0x00200000)
   sram0_bswap    : 0x00004b800000 (0x00200000)
   sram1_bswap    : 0x00004ba00000 (0x00200000)
   pci_io         : 0x000100000000 (0x00200000)
   sram0_alias    : 0x00014b000000 (0x00200000)
   sram1_alias    : 0x00014b200000 (0x00200000)

PCI Bus "MB0/MB1/MB2" Device list:
   C7200-IO-FE(0) : ID 1011:0009, Bus  0, Dev.  6, Func.  0, IRQ: 2
   clpd6729       : ID 1013:1100, Bus  0, Dev.  5, Func.  0
   sram1          : ID 1137:0005, Bus 10, Dev.  0, Func.  0
   sram0          : ID 1137:0005, Bus  4, Dev.  0, Func.  0
   dec21050       : ID 1011:0001, Bus 10, Dev.  3, Func.  0
   dec21050       : ID 1011:0001, Bus  4, Dev.  3, Func.  0
   dec21050       : ID 1011:0001, Bus 10, Dev.  2, Func.  0
   dec21050       : ID 1011:0001, Bus  4, Dev.  2, Func.  0
   dec21050       : ID 1011:0001, Bus 10, Dev.  1, Func.  0
   dec21050       : ID 1011:0001, Bus  4, Dev.  1, Func.  0
   dec21050       : ID 1011:0001, Bus  0, Dev.  4, Func.  0
   dec21050       : ID 1011:0001, Bus  0, Dev.  3, Func.  0
   dec21050       : ID 1011:0001, Bus  0, Dev.  2, Func.  0
   dec21050       : ID 1011:0001, Bus  0, Dev.  1, Func.  0
   gt64010        : ID 11ab:0146, Bus  0, Dev.  0, Func.  0, IRQ: 4


Loading ELF file 'c7200-js-mz.124-3.bin'...
   * Adding section at virtual address 0xffffffff80008000
ELF entry point: 0x80008000

C7200 Instance 1: starting simulation (CPU0 PC=0xffffffffbfc00000), JIT is enabl
ed.
Cisco 7200 (Predator) ROMMON emulation microcode.

Launching IOS image at 0x80008000...
Self decompressing the image : #################################################
################################################################################
################################################################################
######################################################################### [OK]

              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 IOS Software, 7200 Software (C7200-JS-M), Version 12.4(3), RELEASE SOFTWAR
E (fc2)
Technical Support: [url]http://www.cisco.com/techsupport[/url]
Copyright (c) 1986-2005 by Cisco Systems, Inc.
Compiled Fri 22-Jul-05 09:12 by hqluong
Image text-base: 0x6000905C, data-base: 0x6280A000

Port Statistics for unclassified packets is not turned on.
Cisco 7206VXR (NPE200) processor (revision B) with 245760K/16384K bytes of memor
y.
Processor board ID 4294967295
R5000 CPU at 200MHz, Implementation 35, Rev 1.2
6 slot VXR midplane, Version 2.1

Last reset from power-on

Number of Fast PAs = 1
Number of Fast+Medium PAs = 1
Total number of PA bandwidth points consumed = 200
Please refer to the following document "Cisco 7200 Series Port
Adaptor Hardware Configuration Guidelines" on CCO <www.cisco.com>,
for c7200 bandwidth points oversubscription/usage guidelines.

1 FastEthernet interface
125K bytes of NVRAM.
4096K bytes of packet SRAM memory.

8192K bytes of Flash internal SIMM (Sector size 256K).

         --- System Configuration Dialog ---

Would you like to enter the initial configuration dialog? [yes/no]: no
% Crashinfo may not be recovered at bootflash:crashinfo
% This file system device reports an error


Press RETURN to get started!


*Jun 22 15:26:22.031: %LINEPROTO-5-UPDOWN: Line protocol on Interface VoIP-Null0
, changed state to up
*Jun 22 15:26:22.031: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state t
o up
*Jun 22 15:26:22.031: %LINEPROTO-5-UPDOWN: Line protocol on Interface , changed
state to up
*Jun 22 15:26:23.031: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthern
et0/0, changed state to down
*Jun 22 15:26:24.867: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state t
o down
*Jun 22 15:26:33.735: %LINK-5-CHANGED: Interface FastEthernet0/0, changed state
to administratively down
*Jun 22 15:26:34.363: %SYS-5-RESTART: System restarted --
Cisco IOS Software, 7200 Software (C7200-JS-M), Version 12.4(3), RELEASE SOFTWAR
E (fc2)
Technical Support: [url]http://www.cisco.com/techsupport[/url]
Copyright (c) 1986-2005 by Cisco Systems, Inc.
Compiled Fri 22-Jul-05 09:12 by hqluong
*Jun 22 15:26:34.407: %ENTITY_ALARM-6-INFO: ASSERT INFO Fa0/0 Physical Port Admi
nistrative State Down
*Jun 22 15:26:34.
Router>415: %SNMP-5-COLDSTART: SNMP agent on host Router is undergoing a cold st
art
Router>en
Router#show version
Cisco IOS Software, 7200 Software (C7200-JS-M), Version 12.4(3), RELEASE SOFTWAR
E (fc2)
Technical Support: [url]http://www.cisco.com/techsupport[/url]
Copyright (c) 1986-2005 by Cisco Systems, Inc.
Compiled Fri 22-Jul-05 09:12 by hqluong

ROM: ROMMON Emulation Microcode
BOOTLDR: ROMMON
Router uptime is 0 minutes
System returned to ROM by unknown reload cause - suspect boot_data[BOOT_COUNT] 0
x0, BOOT_COUNT 0, BOOTDATA 19
System image file is "tftp://255.255.255.255/unknown"

Cisco 7206VXR (NPE200) processor (revision B) with 245760K/16384K bytes of memor
y.
Processor board ID 4294967295
R5000 CPU at 200MHz, Implementation 35, Rev 1.2
6 slot VXR midplane, Version 2.1

Last reset from power-on

Number of Fast PAs = 1
Number of Fast+Medium PAs = 1
Total number of PA bandwidth points consumed = 200
Please refer to the following document "Cisco 7200 Series Port
Adaptor Hardware Configuration Guidelines" on CCO <www.cisco.com>,
for c7200 bandwidth points oversubscription/usage guidelines.

1 FastEthernet interface
125K bytes of NVRAM.
4096K bytes of packet SRAM memory.

8192K bytes of Flash internal SIMM (Sector size 256K).
Configuration register is 0x2142 (will be 0xDEBD at next reload)

Must stop playing now.... but for anyone with the hardware and 7200 IOS image this is pretty darn sweet!

When I get the chance I'm going to toss some of my extra network adapters in the Linux machine running this and have the emulated 7200s talk to my real routers.

mikej412

fillot wrote:

Hello all

mikej412

Nawakette wrote:

Unfortunately, with the version 0.2.5-pre20, problems still occur...

You get the load failure where I get
Loading ELF file 'c7200-js-mz.124-3.bin'...

Did you unzip your image to speed up the load? I didn't get around to doing that since I just wanted to give the windows versions a quick test only. If you ftp'd the image, did you do it in binary mode (windows usually defaults to ascii transfer mode).

My c7200-js-mz.124-3.bin IOS image is 24,108,420 bytes and shows up in Windows Explorer as 23,544KB

Nawakette

Hi everybody !

No Mike, I didn't unzip the bin file... But I think it was not necessary (extension is .bin, not .zip).

My c7200-js-mz.124-3.bin IOS image shows up in Windows Explorer as 23,544KB too...

I don't understand why it doesn't work

mikej412

Nawakette wrote:

I don't understand why it doesn't work

I just tried it again.... with a different image... and got your problem.

But

The image I had used successfully yesterday was also in the directory with dynamips... When I just added the path info to the IOS name, I was working again!

dynamips images\c7200-jk9o3s-mz.123-8.T.bin

Hopefully its just that simple for you! I think I copied that one test image into the dynamips directory even before I tried running straight from the command line since I knew dynagen had been taking care of the little configuration details...

Nawakette

It's working now !!!

It was not the same problem as yours, but what you said helped me to think about something : use the right image name (

I made a tiny mistake in the name

).

Now, I'm waiting for the end of the decompression...

Thanks Mike

mikej412

Nawakette wrote:

It's working now !!!

And I was happy just running the Linux version.... I guess I should load the windows version on my main laptop -- even running 1 instance to check out an IOS feature makes it worth the disk space. And it might give me an excuse to get a new laptop -- maybe a dual core with 2 gigs of memory.

I did run the 2 instances on an old P4 with 768Meg of memory, and probably could have gone for a 3rd instance.

wmac

Hello,

1- I have been able to load 2 instances on my PC but these routers can neither ping each other nor outside ip addresses.

My command line is :

dynamips "images/C7200-P-Mz 122-12.bin" -p 0:C7200-IO-FE -s 0:0:udp:10001:127.0.0.1:10002

and for second instance is :

dynamips "images/C7200-P-Mz 122-12.bin" -p 0:C7200-IO-FE -s 0:0:udp:10002:127.0.0.1:10001

2- Are these virtual routers able to communicate with outside network (i.e our LAN) ? I have some real routers out there and I am trying to communicate with them.

3- Can someone please tell me how can I have these two (or more) virtual routers communicate with each other ? (I need this to speed up my CCNP certification at home

)

Regards,
Mac

Regards,

mikej412

wmac wrote:

2- Are these virtual routers able to communicate with outside network (i.e our LAN) ? I have some real routers out there and I am trying to communicate with them.

3- Can someone please tell me how can I have these two (or more) virtual routers communicate with each other ?

2 - yes, there is a way to configure that....

3 - I've had no problem with the virtual router ethernet ports communicating with each other on either the Linux or Windows version. I've just had to give the virtual router some time to recognize and process the no shutdown command before it recognized the virtual ethernet ports.

I haven't added the additional network cards on the Linux system yet -- but I do remember seeing the documention on one of the web sites mentioned above about having multiple virtual routers on a machine communicating with real routers. I haven't tried (or had the time) to figure out how to talk between different virtual routers running on different machines -- but Dynagen makes that look like its simple.

From your command line it looks like you're running on Linux. If I get a chance I'll try your command lines on my Linux box. On windows it wanted the image name at the end -- but then I did get a load error even when I put my valid image name at the end. Then my windows desktop machine lost its boot drive.

What dynamips version are you running? And you're running a -P- IOS -- that's a Service Provider version, right? Have you tried an -i- or -j- IOS?

Check out the blog link in a post above -- someone there would probably be able to get back to you faster (and with a better answer

) before I do here.

I have a real lab and should be using it (and fixing my desktop, and my main server that lost its boot drive last week).... but dynamip (and dynagen) are fun to play with.