What is ICMP tunneling?

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Multiple Choice

What is ICMP tunneling?

Explanation:
ICMP tunneling is a covert channel that uses ICMP packets to transport data. ICMP is originally meant for diagnostic messages like reachability checks, not for carrying user data, but in tunneling, data is hidden inside the ICMP message payload or transmitted as part of a disguised stream. The result is a way to move information through the network by piggybacking on ICMP traffic, which can bypass some firewall rules that focus on ports or protocols rather than ICMP itself. This is distinct from simply encrypting data with ICMP, since ICMP provides no encryption on its own, and it’s not about UDP over ICMP or DNS usage.

ICMP tunneling is a covert channel that uses ICMP packets to transport data. ICMP is originally meant for diagnostic messages like reachability checks, not for carrying user data, but in tunneling, data is hidden inside the ICMP message payload or transmitted as part of a disguised stream. The result is a way to move information through the network by piggybacking on ICMP traffic, which can bypass some firewall rules that focus on ports or protocols rather than ICMP itself. This is distinct from simply encrypting data with ICMP, since ICMP provides no encryption on its own, and it’s not about UDP over ICMP or DNS usage.

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