I would like to convert some PCAP traces to Netflow format for further analysis with netflow tools. Is there any way to do that? 

Specifically, I want to use "flow-export" tool in order to extract some fields of interest from a netflow trace as follows: 

```
$ flow-export -f2 -mUNIX_SECS,SYSUPTIME,DPKTS,DOCTETS < mynetflow.trace

```

In this case, the mynetflow.trace file is taken by converting a PCAP file using the following commands:

```
$ nfcapd -p 12345 -l ./ 

$ softflowd -n localhost:12345 -r mytrace.pcap

```

This, generates a netflow trace but it cannot be used by flow-export correctly, since it is not in the right format. I tried also to pipe the output of the following command to flow-export as follows:

```
$ flow-import -V1 -z0 -f0 <mynetflow.trace | flow-export -f2 -mUNIX_SECS,SYSUPTIME,DPKTS,DOCTETS

```

but the output of the first command generated zero timestamps. 

Any ideas?