pcap of  spa with Ethernet FCS

Had to send the packet from a remote host into the BeagleBone to get the Ethernet FCS in the pcap file.... let me know if this works.

Captured with:
tcpdump -i eth0 -l -nn -s 0 -w fcs_spa.pcap udp port 62201

Generated remotely with:
LD_LIBRARY_PATH=./lib/.libs ./client/.libs/fwknop -A tcp/22 -a 127.0.0.2
-D 192.168.18.11 --no-save-args --verbose --verbose --rc-file
./test/conf/fwknoprc_default_hmac_base64_key

Thanks for adding Ethernet FCS support to fwknop!