What applications and hardware can generate the flows for use in SiLK?
SiLK accepts flows in the NetFlow v5 format from a router. These flows are sometimes called Protocol Data Units (PDU). You can also find software that will generate NetFlow v5 records from various types of input. When compiled with libfixbuf support, SiLK can accept NetFlow v9 flows and flows in the IPFIX (Internet Protocol Flow Information eXport) format. You can use the yaf flow meter to generate IPFIX flows from libpcap (tcpdump) data or by live capture.