# dumpcap > A network traffic dump tool. > More information: . - Display available interfaces: `dumpcap --list-interfaces` - Capture packets on a specific interface: `dumpcap --interface {{1}}` - Capture packets to a specific location: `dumpcap --interface {{1}} -w {{path/to/output_file.pcapng}}` - Write to a ring buffer with a specific max file limit of a specific size: `dumpcap --interface {{1}} -w {{path/to/output_file.pcapng}} --ring-buffer filesize:{{500000}} --ring-buffer files:{{10}}`