Hello,

I'm trying to setup a netflow collector from Mikrotik RouterOS routers.

They claim to support IPFIX and that's what I'm using.

All the collected flows have zero first/last:

Flow Record:
  Flags        =              0x06 FLOW, Unsampled
  export sysid =                 2
  size         =                64
  first        =                 0 [1970-01-01 01:00:00]
  last         =                 0 [1970-01-01 01:00:00]
  msec_first   =                 0
  msec_last    =                 0
  src addr     =    195.72.211.127
  dst addr     =      31.44.166.17
  src port     =               443
  dst port     =             36353
  fwd status   =                 0
  tcp flags    =              0x18 .AP...
  proto        =                 6 TCP
  (src)tos     =                 0
  (in)packets  =                 7
  (in)bytes    =               496
  input        =                 0
  output       =                10

I captured some netflow traffic and apparently the timestamps are present. The template has FIRST_SWITCHED (22) and LAST_SWITCHED (21) attributes.

I suppose the reason is the one described in https://github.com/phaag/nfdump/issues/36

Do you confirm it should be the case?

Thank you,
Bye,

--
  Daniele Orlandi

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