It is possible to share a single public address on a Local Area Network using a form of Network Address Translation. Explain how this is achieved by clearly stating the type of addresses used in the LAN; how the NAT device performs address mappings, any problems that may arise and action taken by the NAT device to resolve the problem. Below is part of the running configuration of a Cisco router used to configure NAT. Write a brief explanation of lines 9, 10, 11, 12. interface ethernet 0 ip address 10.10.10.1 255.255.255.0 3 ip nat inside 4 interface ethernet 1 5 ip address 10.10.20.1 255.255.255.0 6 ip nat inside 7 interface serial 0. 8 ip address 172.16.10.64 255.255.255.0 9 ip nat outside 10 ip nat pool ovrld 172.16.10.1 172.16.10.1 prefix 24 11 ip nat inside source list 7 pool ovrld overload 12 access-list 7 permit 10.10.10.0 0.0.0.31 13 access-list 7 permit 10.10.20.0 0.0.0.31 1 2