Release v2.1

• Options Templates support (V9 and IPFIX). Which let to implement:
  • Flow Sampling (random, deterministic, and hash modes) for all types
    of NetFlow protocols (V5, V9, IPFIX).
  • Export Statistics (metering, exporting, sampling) and Configuration.
  • Export Interface list (ifName, ifDescr).
• Promisc hack (no need to patch kernel anymore).
• SNMP monitoring interface and agent (via net-snmp dlmod).
• More compilation compatibility with recent kernels, grsecurity kernels,
  Gentoo, Debian, Centos. DKMS install support.
• Minor features: IPSec flows, Direction Element. Removed support for
  CONNMARK. Bug fixes and improvements.
• irqtop tool (ruby).