Part A Wireshark ICMP filter 'icmp':
ICMP Echo Request (Type 8) / Echo Reply (Type 0)
Fields: Source IP, Destination IP, type, sequence, TTL
ARP filter 'arp': Who has <gateway IP>? Tell <PC IP> / <gateway IP> is at <MAC>

Part B DHCP (PC Desktop -> IP Configuration -> DHCP):
IP address: 192.168.1.x (NOT 192.168.1.1)
Subnet mask: 255.255.255.0
Gateway: 192.168.1.1
R0> show ip dhcp binding -> client IP and lease entries

Part C NAT/PAT using reachable simulated outside router loopback 8.8.8.8:
PC0> ping 8.8.8.8 -> replies when correctly connected
Router0# show ip nat translations -> inside local 192.168.1.x and inside global 200.1.1.1 (ICMP entries may expire quickly)
Router0# show ip nat statistics -> translation activity/hits
