^\w{3} [ :0-9]{11} [._[:alnum:]-]+ in\.tftpd\[[0-9]+\]: RRQ from [\.0-9]+ filename [^[:space:]]+ $
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ in\.tftpd\[[0-9]+\]: tftp: client does not accept options