No two cards ever manufactured should share the same address. If two cards contained identical MAC addresses problems would be encountered with network communications.
yes
Computers with a specified MAC address can only send and receive information with the IP address it is bound to. To use MAC address binding, you must associate an IP address on the specified interface with a MAC address.
No, they can't have the same mac address, because mac address is an id for a machine therefore the ip addresses are registered to the DHCP table accordingly to the mac address. So if you spoof the mac address lets say having two machines with the same mac address what will happen is that only one machine at time would be allowed once it disconnect then the other can connect. Why spoofing a mac address? I guess one of the reasons is to defeat a network administrator when they secure their network by filtering the mac addresses so by spoofing the mac address you will be able to access the internet.
NO, its not possible to have same MAC addresses for two different network cards. because MAC address is a unique part of the recognition of the network card and it is also called as PHYSICAL address of your PC. There is possibility of 2 network cards with same MAC address by 3rd party MAC spoofing techniques.........
Each computer has a unique name, IP address and MAC address. (not MAC as in McIntosh.)
802.11 use MAC addresses, which are the same as IP addresses in some networks
The computer's MAC address must be unique, and the internal IP address must be unique. Either of these being the same as another computer's causes issues which won't let your computer connect.
One computer must have unique MAC addresses for each Ethernet adapter (ideally each Ethernet adapter in existence has a unique MAC address but there are some that allow manual setting of the MAC, so duplicates can exist.) If you have not changed anything from the factory settings then each network card will have a unique address!
No, MAC addresss and IP address are not the same. MAC addresses are "hard-coded" into the Network Interface Card (NIC) and only ID that individual card. The IP address is software generated and ID's both the network and the individual host.
All network devices must have a MAC address. Find yours by selecting Settings - General and looking at the Wi-Fi address.
A MAC address is useful if you want the router to always provide the same IP address to the same network interface, or if you want to provide a service, such as a PXE boot image, to a specific computer regardless of its IP address.
to determine the MAC address of a device on the same network