HowStuffWorks.com
RSS
Make HowStuffWorks your homepage
|
Get Newsletter
Search HowStuffWorks and the web:
Computer
Computer Security
Computer & Internet Security
Computer surveillance and security covers a wide range of ways to keep you and your information safe. Learn about firewalls, zombie computers, hackers and workplace surveillance.
Related Categories:
> Authentication
REFERENCE LINKS
Print
Email
Cite
Please copy/paste the following text to properly cite this How Stuff Works article:
Tyson, Jeff. "How Virtual Private Networks Work." 15 February 2001. HowStuffWorks.com. <http://computer.howstuffworks.com/vpn.htm> 09 May 2008.
by
Jeff Tyson
Inside This Article
1.
Introduction to How Virtual Private Networks Work
2.
What Makes a VPN?
3.
Remote-Access VPN
4.
Site-to-Site VPN
5.
Analogy: Each LAN is an Island
6.
VPN Security: Firewalls
7.
VPN Security: Encryption
8.
VPN Security: IPSec
9.
VPN Security: AAA Servers
10.
VPN Technologies
11.
VPN Concentrator
12.
VPN-Optimized Router
13.
Cisco Secure PIX Firewall
14.
Tunneling
15.
Tunneling: Site-to-Site
16.
Tunneling: Remote-Access
17.
Lots More Information
18.
See all
Computer & Internet Security
articles
Lots More Information
Related HowStuffWorks Articles
How Routers Work
How Firewalls Work
How Encryption Works
How Network Address Translation Works
How LAN Switches Work
How Ethernet Works
How Modems Work
How DSL Works
How Cable Modems Work
How Web Servers Work
How Home Networking Works
What is a packet?
More Great Links
Cisco: Virtual Private Networks
Cisco: Virtual Private Dial-up Networks
RFC 1661: The Point-to-Point Protocol (PPP)
RFC 2661: Layer Two Tunneling Protocol "L2TP"
Cisco: Secure PIX Firewall Series
VPN Overview
IP Tunneling Protocols
Tom Dunigan's VPN Page
Virtual Private Network Consortium
PREVIOUS
Inside This Article
1.
Introduction to How Virtual Private Networks Work
2.
What Makes a VPN?
3.
Remote-Access VPN
4.
Site-to-Site VPN
5.
Analogy: Each LAN is an Island
6.
VPN Security: Firewalls
7.
VPN Security: Encryption
8.
VPN Security: IPSec
9.
VPN Security: AAA Servers
10.
VPN Technologies
11.
VPN Concentrator
12.
VPN-Optimized Router
13.
Cisco Secure PIX Firewall
14.
Tunneling
15.
Tunneling: Site-to-Site
16.
Tunneling: Remote-Access
17.
Lots More Information
18.
See all
Computer & Internet Security
articles
Share This Article:
(what's this?)
More Options:
Please copy/paste the following text to properly cite this How Stuff Works article:
Tyson, Jeff. "How Virtual Private Networks Work." 15 February 2001. HowStuffWorks.com. <http://computer.howstuffworks.com/vpn.htm> 09 May 2008.
ADVERTISEMENT
VIDEO SELECTIONS
Building Tulip Island
Download: Web 2.0
Episode 6 - Home Network Primer
20th Century Battlefields: 1982 Falklands 1
Episode 7 - Setup a Wireless Home Network
How to Be Safe at WiFi Hotspots
2057: Time Travel
Web Servers
Download: MySpace
Fiber Optics in Homes
More Videos on HowStuffWorks >>>
TOP SELLING
LAN SWITCHES
3Com WXR100 1-Port Wireless LAN Switch (3CRWXR10095AUS)
Layer 2/3 Managed Wireless LAN Switch, 1 x 10Base-T/100Base-TX (RJ-45), 1 x 10Base-T/100Base-TX (RJ-45), Switch Fabric 0.045 Gbps
$499 - $741
NetGear WFS709TP 8-Port Wireless LAN Switch (WFS709TP-100NAS)
Layer 2/3 Managed Wireless LAN Switch, 8 x 10Base-T/100Base-TX (RJ-45), 1 x 1000Base-T (RJ-45)
$1838 - $2100
3Com (3CRUS2475) 20-Port Gigabit Wireless LAN Switch
Layer 2 Managed Wireless LAN Switch, 20 x 10/100/1000Base-T (RJ-45), 4 x SFP/1000Base-T Combo, Switch Fabric 25.8 Gbps
$1806 - $2485