Install and Configure GNS3
First, You should install gns3:
sudo emerge --autounmask-write gns3
sudo dispatch-conf
sudo emerge gns3
Then you need to prepare for ios images, You can download them from:
ftp://ftp.unikon-ua.net/pub/Cisco/IOS/
http://115.com/file/clsclmjb
Then you should configure them:
Edit>IOS Images and Hypervisors
And calculate ‘Idle PC’。
You may want to get rid of warning of baseconfig.txt, refer to:
http://forum.gns3.net/post12717.html
If you are using KDE, you may use konsole’s preconfigured terminal commands.
Edit>Preferences>General>Terminal Settings
You need to install and configure virtualbox at Edit>Preferences>VirtualBox:
modify
Path to vboxwrapperto:/usr/libexec/gns3/vboxwrapper.pyemerge virtualbox with sdk and python USE flags
install vboxapi:
cd /usr/lib/virtualbox/sdk/installer/ export VBOX_INSTALL_PATH=/usr/lib/virtualbox/ python vboxapisetup.py installinstall xdotool(It’s quite an interesting tool!)
sudo emerge xdotool- add virtual system:
Edit>Preferences>VirtualBox>VirtualBox Guest
You need to install qemu at Edit>Preferences>Qemu:
modify
Path to qemu:qemu-system-x86_64modify path to qemuwrapper to:
/usr/libexec/gns3/qemuwrapper.pykernel should support kvm-intel:
⮀ ~ ⮀ lsmod|grep kvm kvm_intel 117933 0 kvm 225670 1 kvm_inteland add you user to:
gpasswd -a username kvm
add virtual system, which can be
vdiIf you want to use PIX firewall, download pemu from Sourceforge and cp them to the directory which has
qemuwrapper.py. You can reffer to: http://www.gns3.net/documentation/gns3/pix-firewall-emulation/if you re-compile kernel, don’t forget to re-compile kernel modules for virtualbox and modprobe them
More configuration
More configuration and downloads(I tried and failed, do not know what is actually is and how to use it):
A Simple Test
- Calc idle PC, very important!!
configure the router with the help of OSPF configure(中文)
A better choice to learn without these configuration, try GNS3 WorkBench