sascha@sascha-laptop:~$ tail -f /var/log/samba/log.nmbd
[2007/04/25 20:03:40, 0] nmbd/nmbd_nameregister.c:register_name(512)
  register_name: Failed to send packet trying to register name WORKGROUP<1e>
[2007/04/25 20:03:41, 0] libsmb/nmblib.c:send_udp(791)
  Packet send failed to 192.168.37.255(138) ERRNO=Operation not permitted
[2007/04/25 20:03:41, 0] libsmb/nmblib.c:send_udp(791)
  Packet send failed to 172.16.218.255(138) ERRNO=Operation not permitted
[2007/04/25 20:04:55, 0] libsmb/nmblib.c:send_udp(791)
  Packet send failed to 192.168.37.255(138) ERRNO=Operation not permitted
[2007/04/25 20:04:55, 0] libsmb/nmblib.c:send_udp(791)
  Packet send failed to 172.16.218.255(138) ERRNO=Operation not permitted