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I use bridge-utils on DeviceX because DeviceY should be in the same LAN as all the other devices in the LAN. It might not be deal-breaker if I also get address of the router itself - it will be known beforehand and I can filter it out, as long as I have adresses of only two devices - the router and DeviceY.įrom DeviceX, how do I reliably find MAC or IP address of DeviceY? There might be many other devices connected to the router, but I need only the address of DeviceY which is always directly connected to one of two Ethernet ports. It is always guaranteed that only these two devices will be connected to the bridge on DeviceX, and no one else. DeviceY might get replaced with another physical device at any time, thus I can't just look at its MAC address once and keep it - I need to determine MAC address each time my DeviceX boots or when it detects that one of its two Ethernet connections has been reset (cable disconnected and connected again etc.). I know only that it is using DHCP IP address received from the router through my bridge on DeviceX.
#Find other devices network mac address windows Pc#
I have complete control over DeviceX - it's a Linux PC and it has two Ethernet adapters, which are bridged with Linux bridge-utils to provide LAN access for both DeviceX and DeviceY.ĭeviceY is also a Linux PC, but I have no control over it.