- Unique to each device, assigned by the manufacturer.
IP Address (Internet protocol)
- Identifies devices globally across networks.
NAT (Network Address Translation)
- Private IPs are not unique.
- NAT enables multiple devices to share a single public IP.
DHCP (Dynamic Host Configuration Protocol)
- Automatically assigns an IP address to a machine based on its MAC address.
- IP assignments are temporary and not stored long-term
ARP (Address Resolution Protocol)
- Helps routers map IP addresses to MAC addresses .
- Allows devices to discover who is using a specific IP.
ARP Spoofing : Network Attack
- A malicious machine can impersonate another by faking ARP responses.
- This can allow MITM (Man-in-the-Middle) attacks and data interception.