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Can a wireless connection and a wired connection have the same mac address?
So, I have a wireless adapter for my computer and I was thinking of changing the mac address. Just before I do, I want to prevent any problems. Basically, I don't want to accidently type in the same mac address as a wired connection on my network (all my devices except my phone and computer are wired). So, if I do accidently type in the same mac address as a wired connection, what would happen? I do know what happens if two wired connections or two wireless connections have the same mac address but I do not know what happens in my scenario.
Also, I only care about the answers, not deeper questions as to why I'm changing my mac address.
Thank You.
4 Answers
- Laurence ILv 73 years ago
no they cannot. at least not at the same time. and IP's are given a lease and are still valid in the router even if you turn off your device. most routers handout IP's using a Starting address eg 192.168.1.2 for wired connections and a different starting address for wifi connected devices usually starting 192.168.1.30. you can alter these starting ip's inside the router.
- PoohBearPenguinLv 73 years ago
MAC Address must be globally unique. This is why it is not possible to actually change your device's MAC address - it's actually burned into a physical chip.
You can SPOOF a MAC address...but there's generally no real reason to do this. At least not at the computer level.
Even then, it only becomes a problem if two or more devices are using the same MAC address on the same local network (e.g. your home network.)
- JoeLv 73 years ago
It shouldn't matter that one is Wi-Fi, and that the other is Ethernet. The router's switch will see the same MAC address on two different ports, and will either object and refuse to connect one, or get confused.
Assuming you're trying to get around a MAC "block": the odds are very unlikely that you'll accidentally duplicate a MAC address.
