ntop question

[DanielArnold]

Hi,
i have configured ntop to monitor bandwidth on my firewall (Gentoo of course, IPTables w/ NAT, FWBuilder). So far it works fine but there is one annoying issue:
Any host on the LAN is named "localhost".

http://utopia4.de/tmp/ntop.png (Screenshot of what the hosts list looks like)

The entry maps to the actual IP address of the host, so I can figure out the correct name by querying DNS - but for "overview" purposes this is very uncomfortable.

Is there any way to automate local DNS lookups on the local network?

Thanks a lot in advance!
Daniel