# ipaggcreate > Produce aggregate statistics of TCP/IP dumps. > More information: . - Count the number of packets sent from each source address appearing in a pcap file: `ipaggcreate --src {{path/to/file.pcap}}` - Group and count packets read from a network interface by IP packet length: `ipaggcreate --interface {{eth0}} --length` - Count the number of bytes sent between each address pair appearing in a pcap file: `ipaggcreate --address-pairs --bytes {{path/to/file.pcap}}`