1. Briefly describe how address resolution protocol works. How is ARP spoofing done? 2. Given the IP packet with the first line being the IP header: 45 00 00 40 00 01 00 00 3C 11 EO 31 CE D9 8F 1F C7 B6 78 CB 04 63 00 35 00 2C AB DA 00 01 01 00 00 01 00 00 00 00 00 00 04 70 6F 70 64 02 69 78 06 6E 65 74 63 6F 6D 03 63 6F 60 00 00 01 00 01 Assume that an attacker performs an IP spoofing by changing the source IP address to 206.216.142.30. In order to make the IP packet valid, some other bytes of the IP header must be modified as well. What is the new IP header after the modification