MAC address B4:2D:56: manufacturer Extreme Networks, Inc.
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Testar grátis 14 dias →The MAC address B4:2D:56 (or B42D56, without separators) identifies a device made by Extreme Networks, Inc.. Here is what that means and how to recognize devices on your network.
Who owns the MAC starting with B4:2D:56?
The first three blocks of a MAC address form the OUI (Organizationally Unique Identifier), a code the IEEE assigns to each manufacturer. The prefix B4:2D:56 is registered to Extreme Networks, Inc.. Any device whose MAC starts with B4:2D:56 (for example, B4:2D:56:1A:2B:3C) was made by this company.
What it means to see this device on your network
Knowing the manufacturer helps identify what is connected to your Wi-Fi or company network. A Extreme Networks, Inc. MAC you don't recognize could be a legitimate device (a phone, a TV, a camera) — or one that shouldn't be there. Extreme Networks, Inc. has 98 MAC prefixes registered with the IEEE (see others under "Read also").
How to see every device and vendor on your network
Looking up one MAC vendor at a time is tedious. Sentinela, by PC Monitor, automatically maps every device on your network, shows each one's vendor by MAC and flags suspicious devices and connections — running on your Windows. Meet Sentinela.
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Perguntas frequentes
Who owns MAC address B4:2D:56?
The prefix B4:2D:56 (B42D56) is registered with the IEEE to Extreme Networks, Inc..
What is the OUI of a MAC address?
It is the first three blocks of the MAC (6 hex digits), which the IEEE assigns to each manufacturer.
Is every B4:2D:56 MAC from Extreme Networks, Inc.?
Yes. Any MAC starting with B4:2D:56 was assigned to Extreme Networks, Inc. by the IEEE, though the final product may be sold under another brand.