Network addressing (ID's and MAC addresses) - Dleifnesor/NET-150 GitHub Wiki

Network addressing: Network ID: first part of an IP address (think city) Host ID: second part of ip address (block or street name) mac address: unique to every network adapter (street address)

IP address: a 32 bit number, displayed as 4 8-bit number sets example: 10001010-01110100-11010010-10001010

MAC address:

network devices have an electronic hardware interface called a NIC

the mac address is 6 bytes (48 bits) in length, the address is displayed in 12 hexadecimal digits example: aa:bb:cc:11:22:33 or 33:c4:d8:3f:6f:1A

basically a string of 48 1's and 0's

the first 6 hexadecimal codes are used to indicate the vendor (00-AA-00) intel (00-00-86) megahertz co

mac addresses are used by NIC's to communicate from one device to the next, is a layer 2 address

IP addresses use layer 3

if an organization owns the ip address 129.170.0.0/16 they can own and assign any IP address from 129.170.0.1 to 129.170.255.254

going back to the OSI model, network addresses are added to data in the appropriate "header" layer 3 (network layer) would have the IP addresses if the sender and the receiver Layer 2 would have the mac addresses of the current source

wireshark is used for capturing and logging network traffic you ccan view interfaces under capture, it will show you which nIC is processing traffic