YAF can convert PCAP files to the IPFIX format, as shown in the following screenshot:

We can see that executing the preceding command, yaf --in filename.pcap --out filename.yaf, results in the generation of a new file, Fullpack.yaf, in the IPFIX format. YAF optionally enables us to perform application labeling, deep-packet inspection, DHCP fingerprinting, and much more.