What is GRE tunnel and how it is different from Virtual Link in OSPF????

Neeraj shah asked 2 years ago

Hi all,

I read a lot of times about GRE tunnels that is used in IP Network. But never understood why this Technology was made??
What is the thing that makes GRE tunnel different from OSPF Virtual Link???

Basically what is that technology couldn't understood the basic concept of implementing the GRE tunnel????

1 Answers
Steve Bonilla Staff answered 2 years ago

GRE is VPN. Windows VPN, PPTP, rides over GRE.

OSPF is a protocol used for dynamic routing. Very different.

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