On May 23, 2009, at 5:37 AM, Mikael Hillborg wrote: > The line: > pcap_findalldevs_ex(PCAP_SRC_IF_STRING, NULL, &alldevs, errbuf) > returns -1 and the app then exits with > fprintf(stderr,"Error in pcap_findalldevs: %s\n", errbuf); What's the full message that it prints? (I.e., what's in errbuf?)