The librpcap client library exposes a subset of the pcap API as defined in the pcap (3) manpage. The API is used in a manner identical to that of libpcap, so that any programs which do not use the libpcap functions not present in rpcap can directly link to rpcap in place of pcap. The API functions as a set of pcap-compatible wrapper functions over a Sun RPC interface to the remote server, which invoke the corresponding libpcap functionality on it.
At this time, rpcap has been built and tested only on Linux on Intel platforms. However, it should build on any UNIX like system that supports multithreading and has the RPC libraries and utilities available, so that it should be possible to build it on most systems. Please note however that there are a couple of bugs in the code (all my own!) that currently restrict it to little-endian systems. I will fix this ASAP.
RPCAP is currently at version 0.23. It works, but is still alpha code. Be careful! There is an accompanying port of tcpdump, called rtdump, which has been linked against rpcap for remote capture applications. See the News and Documentation pages for details.
RPCAP is available under the GNU General Public Licence, a copy of which is included in the distribution in the file COPYING. You can also download a copy at the Free Software Foundation's website.
RPCAP was written by S. Krishnan (sri_krishnan