Github user nickwallen commented on the issue:
https://github.com/apache/metron/pull/531
> If i'm correctly informed by the docs, bro will give you the IP and MAC
relation, which differs from DHCPDump which captures IP and Hostname relations.
Giving context to an IP by adding the Hostname looks more promising...
I am a little confused by what you are looking for though. But maybe I am
just misunderstanding and need more coffee.
The purpose of DHCP is to hand out an IP that typically gets associated
with a MAC address. That's the pairing I would be interested in from DHCP.
[Bro can help with
this.](https://www.bro.org/sphinx/scripts/base/protocols/dhcp/main.bro.html)
If you are looking for IP to hostname, then I would think you would be
interested in DNS. [Bro can also help with
this.](https://www.bro.org/sphinx/scripts/base/protocols/dns/main.bro.html)
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