How to read all traffic received on one network interface using Erlang

[Papa Tana]

>
>
> Well, you could write to named pipe and read it on the other side of that
> pipe, alternatively you can use socat and write to the UNIX socket. This
> will allow you to run tcpdump as a privileged user without making Erlang
> running as one.
>
>
To make a direct pipe, I'm getting from 'tcpdump' and 'replay' on the other
side like below:

# tcdump -i eth0 -w -'..... | tcpreplay -i eth1 - ....

But with this, the traffic is just replayed and I watch passively.

When you say 'read it on the other side', are you talking about piping to
Erlang? If yes, How to do that please?
.

> You can however "hack it around" by using CAP_NET_RAW (if you run on
> Linux), either manually or via init system of your choice (ex. in systemd
> https://www.freedesktop.org/software/systemd/man/systemd.exec.html#Capabilities
> ).
>
>
 *CAP_NET_RAW
 *systemd *
https://www.freedesktop.org/software/systemd/man/systemd.exec.html#Capabilities
Really appreciated, I will check them.
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