During a penetration test, you are required to capture and analyze traffic on a client's network to identify unencrypted protocols transmitting sensitive information. The client's network consists of switched Ethernet. What approach could you take to effectively sniff network packets considering the network configuration?
Broadcasting ICMP echo requests
Enabling promiscuous mode on a network adapter
Creating a rogue DHCP server
ARP poisoning
Subnetting the network to isolate traffic
Using Switched Port Analyzer (SPAN) to mirror traffic