mkpeer em4: netflow lower iface0
name em4:lower netflow
connect em4: netflow: upper iface1
connect netflow: netflow: out0 out1
mkpeer netflow: ksocket export inet/dgram/udp
msg netflow:export bind  inet/77.91.128.102:4994
msg netflow:export connect inet/77.91.129.2:4994