Windows SMB v2/v3 Protocol

Detection Information

The following page provides information on the Windows SMB v2/v3 Protocol.

Protocol Description

The Server Message Block (SMB) protocol provides file and print services to systems on the network. This detection is for version 2 and 3 of the protocol.

Full Name

Server Message Block Version 2 and 3


SMBv2 / SMBv3

Port Statistics

IP Protocol Flow Percent
TCP 445 100%

Port Reference - RFC

  • TCP 445 - Microsoft-DS


File Server

External Resources

Protocol Detection

Do you know how much Windows SMB v2/v3 traffic flows through your network? Netify's protocol detection engine and reporting provides insights to help manage your network.

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