The onload_tcpdump application requires libpcap and libpcap-devel to be installed on the server. If libpcap is not installed the following message is reported when onload_tcpdump is invoked:
./onload_tcpdump
ci Onload was compiled without libpcap development package installed. You need to install libpcap-devel or libpcap-dev package to run onload_tcpdump.
tcpdump: truncated dump file; tried to read 24 file header bytes, only got 0
HangupIf libpcap is missing it can be downloaded from
http://www.tcpdump.org/.
Untar the compressed file on the target server and follow build instructions in the INSTALL.txt file. The libpcap package must be installed before Onload is built and installed.