The dump DAQ allows you to test the various inline mode features available in 2.9 Snort like injection and normalization.
./snort -i <device> --daq dump
./snort -r <pcap> --daq dump
By default a file named inline-out.pcap will be created containing all packets that passed through or were generated by snort. You can optionally specify a different name.
./snort --daq dump --daq-var file=<name>
dump uses the pcap daq for packet acquisition. It therefore does not count filtered packets.
Note that the dump DAQ inline mode is not an actual inline mode. Furthermore, you will probably want to have the pcap DAQ acquire in another mode like this:
./snort -r <pcap> -Q --daq dump --daq-var load-mode=read-file
./snort -i <device> -Q --daq dump --daq-var load-mode=passive