=====PC Engines APU2 - Sniffing interface =====
Configure a sniffing interface to monitor for example a SPAN (mirror) port.
  * Configure enp2s0 as sniffing interface, edit ''/etc/network/interfaces.d/enp2s0.conf''<code>
allow-hotplug enp2s0
iface enp2s0 inet manual
  offload-tx  off
  offload-rx  off
  offload-sg  off
  offload-tso off
  pre-up sysctl -w net.ipv6.conf.enp2s0.autoconf=0
  pre-up sysctl -w net.ipv6.conf.enp2s0.accept_ra=0
  pre-up ifconfig $IFACE promisc -arp up
  post-down ifconfig $IFACE down
</code>
{{tag>[hardware apu2 linux network sniff sniffer sniffing interface]}}