When one computer puts something on the wire other

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connected to broadcast media through the Network Interface Card. When one computer puts something on the wire other computer can see that. The computer looks at header of IP packet. Header and IP packet are part of Ethernet frame. NIC looks for the destination address in the header, if address matches it get the data. The address is a hardware address consists of 6 bytes and called MAC. Every NIC has this address burned into it. Example broadcast address is FF:FF:FF:FF:FF:FF. When Iphone/smart phone is close to a wifi Network it tries to connect with the wifii. Wifi ask the phone for the MAC address, the phone exchange MAC address and causes privacy concerns. This issue is solved by providing software generated fake MAC addresses. The real MAC address is given only when user actually connect with the network. 4: (20) what is IP address? what is difference between IP v4 and IP v6? which version we are using in this class? why do we need IP address? how does computer recognize ip address? use an example to describe how IP address work, in a bits wise. How do you know how many hosts can you have? Also how do you know how many net can you have and the reasons? Which part of ip address the router is looking at and why? Ans. IP address is short for of Internet Protocol Address. IP address is numerical label assigned to each device connected to a computer network. IP address provides identity to a networked device. There are IPv4 and IPv6 IP addresses. Ipv4 is 32 bits and Ipv6 is 128 bits. As the professor discussed we will be discussing mostly Ipv4 for the purpose of our class. IP address is very important as it serves two important functions: host or network interface identification and location addressing. In a 32-bits (4 bytes) IP address byte is separated by a dot, or period. A typical IP address look like this:
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  • Spring '17
  • Du
  • IP address, Internet Protocol Suite

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