# /usr/sbin/ngctl -f- <<-SEQ
>          mkpeer em4: netflow lower iface0
>          name em4:lower netflow
>          connect em4: netflow: upper out0
>          mkpeer netflow: ksocket export inet/dgram/udp
>          msg netflow:export connect inet/77.91.129.2:4994
> SEQ
ngctl: send msg: No such file or directory
ngctl: line 1: error in file