It should do lookups unless you disable them with "-n", or unless your local 
resolver or DNS is broken.  Can you manually resolve stuff on that box?

Generally speaking -o is required.  It depends on your environment, but if you 
have routers and stuff ntop will associate all your hosts with the MAC address 
of the router - because it looks at layer 2 instead of later 3.  That COULD be 
related to your resolution stuff, not sure....

G


________________________________
From: [email protected] 
[mailto:[email protected]] On Behalf Of Paul Smith
Sent: Thursday, April 14, 2011 2:23 PM
To: [email protected]
Subject: Re: [Ntop] Custom Host Name

I don't.  Should I?  I'm using ntop on an ubuntu-server 10.10 with two NICs and 
a port mirrored from the switch port that goes out to the firewall.

I was hoping it would associate with the MAC to avoid situations where DHCP 
leases have ended and the IP addresses recycled.

Is there a reason ntop doesn't just do an nslookup at least for local IP 
addresses?
On Thu, Apr 14, 2011 at 2:11 PM, Gary Gatten 
<[email protected]<mailto:[email protected]>> wrote:
Typically the IP address.

Do you have "-o [--no-mac] in your startup args?

From: Paul Smith 
[mailto:[email protected]<mailto:[email protected]>]
Sent: Thursday, April 14, 2011 02:03 PM
To: [email protected]<mailto:[email protected]> 
<[email protected]<mailto:[email protected]>>
Subject: [Ntop] Custom Host Name

I've had ntop running just inside our firewall for a few days now but it 
doesn't seem to be resolving any dns names.  If I go through and add a few 
Custom Host Names will those names be associated with the hosts' IP address or 
the MAC address?






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