We were not able to install the CPAN module Net::Packet. The error messages indicated that it could not find Net::Libdnet module.

Next, we tried to install Net::Libdnet, but got the error "Libdnet.xs:37:18: error: dnet.h: No such file or directory". That means, we are missing a libdnet.

So, we installed libdnet through yum (from "epel" repos):

# yum install libdnet libdnet-devel

("epel" repos is the Fedora extra package repos).

This will get us through Net::LIbdnet. Next to fail is Net::Pcap, which complained about "You appear to lack the pcap(3) library". So we had to

# yum install libpcap-devel

(we already had libpcap itself.)

After we've got all these missing packages and modules, we are now able to install Net::Packet.