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2.2.28 SMB2 ECHO Request

The SMB2 ECHO Request packet is sent by a client to determine whether a server is processing requests. This request is composed of an SMB2 header, as specified in section 2.2.1, followed by this request structure:


0


1


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8


9

1
0


1


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9

2
0


1


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9

3
0


1

StructureSize

Reserved

StructureSize (2 bytes): The client MUST set this to 4, indicating the size of the request structure, not including the header.

Reserved (2 bytes): This field MUST NOT be used and MUST be reserved. The client MUST set this to 0, and the server MUST ignore it on receipt.