Network flow data

Elastic Stack Logstash
1

I am having network flow data but it is not in human readable format. How am I gonna segregate it???shaii I use nmap codec or netflow codec???I am stuck can I get some help??

2

What do you mean by the network flow data?
NETFLOW format?
Binary stream?

3

I am new to such information but the nfcapd file is in
^L¥^A^@^A^@^@^@^B^@^@^@INTERNET^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^
this format

4

Try https://www.elastic.co/guide/en/logstash/7.1/plugins-codecs-netflow.html