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GNS3: Graphical Network Simulator

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by

Marius N

on 12 May 2015

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Transcript of GNS3: Graphical Network Simulator

GNS3
Graphical Network Simulator
http://www.gns3.com/
What
How
Software-based network emulator
routers, switches, hosts...
What
Emulates actual vendor devices
...networking certs, PoCs, trials, etc.
But I'm not into networking...
Get over it!
Networking concepts are a great foundation!
Networking + GNS3 will
supercharge your lab!!
Even if you don't want to learn Cisco, Juniper, etc...
GNS3 integrates with VirtualBox!
iptables
pfSense
Untangle
<insert favorite routing platform>
Basic switches are built-in!
Create a completely isolated network connecting your vulnerable VMs!
Did I mention?
Wireshark!
Per-Link-Basis!
How
> Download is free, just requires account
> Will not install crap without asking

Install everything!
GNS3, Wireshark, WinPcap, VPCS...
All included!
Skip SolarWinds RTV if you want

> Get VirtualBox from virtualbox.org
Before going nuts with GNS3, make your VMs...
One requirement:
Set network interfaces to
Not Attached
Open GNS3...
Go to
Tools
,
then
Preferences
Back at the
main screen...

Warning:
Stop vbox VMs from vbox first,
then from GNS3!
GNS3 will take over from there...
Finally!
mznlab.net/projects/gns3.html
Resources
Full transcript