How many bytes of overhead does an IP-IP tunnel add to a packet?

The correct answer is C. 20 bytes. Difference Between GRE and IP-IP Tunnel. Generic Routing Encapsulation (GRE) and IP-in-IP (IPIP) are two rather similar tunneling mechanisms which are often confused. In terms of less overhead, the GRE header is 24 bytes and an IP header is 20 bytes.

BGP

Question

Options

A24 bytes
B28 bytes
C20 bytes
D14 bytes

How the community answered

(33 responses)

A
3% (1)
B
9% (3)
C
85% (28)
D
3% (1)

Explanation

Difference Between GRE and IP-IP Tunnel. Generic Routing Encapsulation (GRE) and IP-in-IP (IPIP) are two rather similar tunneling mechanisms which are often confused. In terms of less overhead, the GRE header is 24 bytes and an IP header is 20 bytes.

Topics

#IP-IP tunnel#overhead#encapsulation#packet size

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