What the heck is a tunnel? OK, then, what is a VPN? - Sun, Feb 21, 2021
What the heck is a tunnel? OK, then, what is a VPN?
How hard is it to describe the difference between a tunnel and a VPN to a completely non-technical person? Come to find out, it is fairly difficult! Chris Young - one of our esteemed co-hosts - tweeted out a seemingly simple question: “Explain the difference between a tunnel and a VPN to a non/technical audience.”. Proposed answers were given, a variety of interpretations of “non-technical audience” were made. Hilarity ensued. which really begs the questions: what the heck ARE tunnels? What are VPNs? Think you know? So did we. Take a trip with us through our winding exploration as we dive into the abyss of the ocean of possibilities - all aboard the RV Calypso of encapsulation.
List of Tunneling mechanisms:
Encapsulation
- VXLAN
- GENEVE
- GRE
- mGRE
- NVGRE
- OTV
- IP in IP
- 6 in 4
- 4 in 6
- EoIP
- PPTP
- CAPWAP DTLS
- GTP (GPRS Tunnelling Protocol)
- Q-in-Q
- IPSec
- L2TP
- HTTPS Tunnelling
- DNS Tunnelling
- SSH Tunnelling
- TOR
- L2F
- ISATAP
- Teredo
- Wireguard
- MACSEC
Control Plane
Label Stacks
All in One