hariprs
May 12th, 2008, 05:36 PM
Tested with Ubuntu Hardy
Dynamips:
Dynamips is a Cisco router emulator written by Christophe Fillot. It emulates 1700, 2600, 3600, 3700, and 7200 hardware platforms, and runs standard IOS images. ( This discription is taken from http://dynagen.org/tutorial.htm#_Toc193247991 )
Dynagen:
Dynagen is a front-end for use with the Dynamips Cisco router emulator. It uses an INI-like configuration file to provision Dynamips emulator networks. It takes care of specifying the right port adapters, generating and matching up those pesky NIO descriptors, specifying bridges, frame-relay, ATM switches, etc. It also provides a management CLI for listing devices, suspending and reloading instances, determining and managing idle-pc values, performing packet captures, etc. ( This discription is taken from http://dynagen.org/ )
This tutorial helps you to run cisco IOS images using Dynamips-Dynagen emulators in ubuntu. Will be much useful to those whose are preparing for cisco certifications.
This tutorial doesnot explains extended network configuration of Dynamips. This guide simply provides you on howto install Dynamips-Dynagen in ubuntu and run a cisco router IOS image in ubuntu.
Following softwares/libs are required to run Dynamips-Dynagen
1) libpcap v0.9.x
2) python v2.5.x
Use synaptic package manager to install the above softwares
1) Go to Start>System>Administration>synaptic package manager
2) Search libpcap & python
3) Mark the above mentioned versions and press apply to install.
Install Dynamips & Dynagen:
1) Create a new directory for dynamips
sudo mkdir /opt/dynamips
2) Change to dynamips directory
cd /opt/dynamips
3) Download latest dynagen software using wget
sudo wget http://downloads.sourceforge.net/dyna-gen/dynagen-0.11.0.tar.gz?modtime=1208688475&big_mirror=0
4) Extract the tarball
sudo tar -xvzf dynagen-0.11.0.tar.gz
5) Change to /opt/dynamips/dynagen-x.x.x directory
cd /opt/dynamips/dynagen-0.11.0
6) Look at the README.txt file to see which version of Dynamips is required for this version of Dynagen
less README.txt
At the time of this tutorial, at least dynamips version 0.2.8-RC1 is required.
7) Change to /opt/dynamips directory
cd /opt/dynamips
8 ) Download Dynamips from Dynamips blog
sudo wget http://www.ipflow.utc.fr/dynamips/dynamips-0.2.8-RC2-amd64.bin
Since my arch is AMD64bit i downloaded 64bit version, You can visit http://www.ipflow.utc.fr/blog/ to download latest and for different arch versions.
9) Use chmod to change permission
sudo chmod 755 dynamips-0.2.8-RC2-amd64.bin
10) Navigate to /usr/bin to create symbolic links for dynagen & dynamips
cd /usr/bin
sudo ln -s /opt/dynamips/dynamips-0.2.8-RC2-amd64.bin dynamips
sudo ln -s /opt/dynamips/dynagen-0.11.0/dynagen dynagen
11) Updatedb
sudo updatedb
12) Create a directory for cisco routers images
sudo mkdir /opt/dynamips/images
Run the simulator:
1) Download the cisco router IOS images from www.cisco.com
Note: You must have cisco login to download the IOS image. Normally cisco customer & CCIE will have a login.
2) Put the downloaded cisco IOS image in /opt/dynamips/images folder.
sudo mv c7200-jk9o3s-mz.123.12e.bin /opt/dynamips/images
3) Update the configuration file with correct image path and RAM size required. The dynagen comes with some sample configuration file. I used it for this tutorial.
sudo vi /opt/dynamips/dynagen-0.11.0/sample_labs/simple1/simple1.net
# Simple lab
[localhost]
[[7200]]
# image = \Program Files\Dynamips\images\c7200-jk9o3s-mz.124-7a.image <<--Comment out this windows path
# On Linux / Unix use forward slashes:
image = /opt/dynamips/images/c7200-jk9o3s-mz.124-7a.bin <<-- Uncomment and update this line with correct path
npe = npe-400
ram = 160 <<-- Update this value with required RAM size
[[ROUTER R1]]
s1/0 = R2 s1/0
[[router R2]]
# No need to specify an adapter here, it is taken care of
# by the interface specification under Router R1
Finally save and exit. You can also specify more configuration details in this file if you know more about dynagen config parameters.
4) Start the dynamips process
sudo dynamips -H 7200 &
5) Use the dynagen command to process the .net configuration file and start the virtual network.
sudo dynagen simple1.net
You will placed inside the dynagen console
6) Use list command to list the network equipments and port details for console access.
=>list
Name Type State Server Console
R1 7200 Running localhost:7200 2001
R2 7200 Running localhost:7200 2002
7) Finally telnet to the router console
=> telnet R1
Note: You can also use utilities like putty to telnet to router console.
To learn more about Dynamips/Dynagen visit the below links
http://dynagen.org/tutorial.htm#_Toc193247991
http://www.ipflow.utc.fr/index.php/Cisco_7200_Simulator
http://www.ipflow.utc.fr/blog/
Dynamips:
Dynamips is a Cisco router emulator written by Christophe Fillot. It emulates 1700, 2600, 3600, 3700, and 7200 hardware platforms, and runs standard IOS images. ( This discription is taken from http://dynagen.org/tutorial.htm#_Toc193247991 )
Dynagen:
Dynagen is a front-end for use with the Dynamips Cisco router emulator. It uses an INI-like configuration file to provision Dynamips emulator networks. It takes care of specifying the right port adapters, generating and matching up those pesky NIO descriptors, specifying bridges, frame-relay, ATM switches, etc. It also provides a management CLI for listing devices, suspending and reloading instances, determining and managing idle-pc values, performing packet captures, etc. ( This discription is taken from http://dynagen.org/ )
This tutorial helps you to run cisco IOS images using Dynamips-Dynagen emulators in ubuntu. Will be much useful to those whose are preparing for cisco certifications.
This tutorial doesnot explains extended network configuration of Dynamips. This guide simply provides you on howto install Dynamips-Dynagen in ubuntu and run a cisco router IOS image in ubuntu.
Following softwares/libs are required to run Dynamips-Dynagen
1) libpcap v0.9.x
2) python v2.5.x
Use synaptic package manager to install the above softwares
1) Go to Start>System>Administration>synaptic package manager
2) Search libpcap & python
3) Mark the above mentioned versions and press apply to install.
Install Dynamips & Dynagen:
1) Create a new directory for dynamips
sudo mkdir /opt/dynamips
2) Change to dynamips directory
cd /opt/dynamips
3) Download latest dynagen software using wget
sudo wget http://downloads.sourceforge.net/dyna-gen/dynagen-0.11.0.tar.gz?modtime=1208688475&big_mirror=0
4) Extract the tarball
sudo tar -xvzf dynagen-0.11.0.tar.gz
5) Change to /opt/dynamips/dynagen-x.x.x directory
cd /opt/dynamips/dynagen-0.11.0
6) Look at the README.txt file to see which version of Dynamips is required for this version of Dynagen
less README.txt
At the time of this tutorial, at least dynamips version 0.2.8-RC1 is required.
7) Change to /opt/dynamips directory
cd /opt/dynamips
8 ) Download Dynamips from Dynamips blog
sudo wget http://www.ipflow.utc.fr/dynamips/dynamips-0.2.8-RC2-amd64.bin
Since my arch is AMD64bit i downloaded 64bit version, You can visit http://www.ipflow.utc.fr/blog/ to download latest and for different arch versions.
9) Use chmod to change permission
sudo chmod 755 dynamips-0.2.8-RC2-amd64.bin
10) Navigate to /usr/bin to create symbolic links for dynagen & dynamips
cd /usr/bin
sudo ln -s /opt/dynamips/dynamips-0.2.8-RC2-amd64.bin dynamips
sudo ln -s /opt/dynamips/dynagen-0.11.0/dynagen dynagen
11) Updatedb
sudo updatedb
12) Create a directory for cisco routers images
sudo mkdir /opt/dynamips/images
Run the simulator:
1) Download the cisco router IOS images from www.cisco.com
Note: You must have cisco login to download the IOS image. Normally cisco customer & CCIE will have a login.
2) Put the downloaded cisco IOS image in /opt/dynamips/images folder.
sudo mv c7200-jk9o3s-mz.123.12e.bin /opt/dynamips/images
3) Update the configuration file with correct image path and RAM size required. The dynagen comes with some sample configuration file. I used it for this tutorial.
sudo vi /opt/dynamips/dynagen-0.11.0/sample_labs/simple1/simple1.net
# Simple lab
[localhost]
[[7200]]
# image = \Program Files\Dynamips\images\c7200-jk9o3s-mz.124-7a.image <<--Comment out this windows path
# On Linux / Unix use forward slashes:
image = /opt/dynamips/images/c7200-jk9o3s-mz.124-7a.bin <<-- Uncomment and update this line with correct path
npe = npe-400
ram = 160 <<-- Update this value with required RAM size
[[ROUTER R1]]
s1/0 = R2 s1/0
[[router R2]]
# No need to specify an adapter here, it is taken care of
# by the interface specification under Router R1
Finally save and exit. You can also specify more configuration details in this file if you know more about dynagen config parameters.
4) Start the dynamips process
sudo dynamips -H 7200 &
5) Use the dynagen command to process the .net configuration file and start the virtual network.
sudo dynagen simple1.net
You will placed inside the dynagen console
6) Use list command to list the network equipments and port details for console access.
=>list
Name Type State Server Console
R1 7200 Running localhost:7200 2001
R2 7200 Running localhost:7200 2002
7) Finally telnet to the router console
=> telnet R1
Note: You can also use utilities like putty to telnet to router console.
To learn more about Dynamips/Dynagen visit the below links
http://dynagen.org/tutorial.htm#_Toc193247991
http://www.ipflow.utc.fr/index.php/Cisco_7200_Simulator
http://www.ipflow.utc.fr/blog/