Why are Two Mac Addresses Associated with One Port?

Posted in  mac | 2022-03-15

The MAC Address Table (7.3) > Ethernet Switching

A switch can have multiple MAC addresses associated with a single port. This is common when the switch is connected to another switch. The switch will have a separate MAC address table entry for each frame received with a different source MAC address.

Can a Port have more than One MAC Address?

You can have more than one MAC address on a switch port if: You have a switch connected to it. Could be another managed switch like a Cisco or an unmanaged switch like a consumer Netgear or Linksys switch. You have a virtual server host attached to it with multiple virtual machines sharing the NIC.

Can Switch Learn Multiple MAC Address on Single Port?

No. Any network port in a router, computer etc should have one and only MAC address and it cant be changed. Additional: However hackers spoof MAC address of their computers network port in order to make them untraceable.

Why does my Router have 2 MAC Addresses?

Each network interface has its own unique MAC address, assigned by the vendor of the equipment. So if you have a wired and a wireless interface you will see two addresses.

Can Two MAC Addresses be the Same?

If two devices have the same MAC Address which occurs more often than network administrators would like, neither computer can communicate properly. On an Ethernet LAN, this will cause a high number of collisions. Duplicate MAC Addresses on the same LAN are a problem.

5.3.2.8 Packet Tracer – Examine the ARP Table

Why are two MAC addresses associated with one port? Because both devices connect to one port through the Access Point.

Why does One Port have Two MAC Addresses?

A switch can have multiple MAC addresses associated with a single port. This is common when the switch is connected to another switch. The switch will have a separate MAC address table entry for each frame received with a different source MAC address.

How Many MAC Addresses can a Single Port in Switch See?

You can have more than one MAC address on a switch port if: You have a switch connected to it. Could be another managed switch (like a Cisco) or an unmanaged switch (like a consumer Netgear or Linksys switch).

Can One IP Address have Multiple MAC Addresses?

Yes you can have multiple IP addresses assigned to the same MAC address.

Does a Switch have Multiple MAC Addresses?

A MAC Address is given by the manufacturer and it is embedded in the chip that allows your device to connect to a network. For a network switch, it is likely to have many MAC addresses, since one MAC address is assigned to every interface on the switch.