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New Member

VPN and tunnels

I do have fair knowledge about VPN. But am a bit confused about what exactly the difference between VPN and tunnels?

3 REPLIES

Re: VPN and tunnels

A tunnel is a link between two point. It can be a GRE tunnel (unencrypted) or a VPN tunnel(encrypted) or ... anything that create Point-2-Point link over a public network.

A VPN a create private network over a public network usually with encryption. To use encryption, you need to create tunnels( encrypt in one point, decrypt at the other). You can also have un-encrypted VPN. With MPLS-VPN, you create private network using tagging over you enterprise or service provider network.

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New Member

Re: VPN and tunnels

Thanks for the relpy. So does this mean IPsec tunnel and VPN tunnel is one and the same?

Re: VPN and tunnels

No,

IPsec tunnel is one kind of VPN tunnel. IPsec is only the encryption technology used.

You can have SSL tunnel and PPTP tunnel...those can also be called VPN.

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