| ntp.flags | Flags | Unsigned 8-bit integer | Flags (Leap/Version/Mode) |
| ntp.flags.li | Leap Indicator | Unsigned 8-bit integer | Leap Indicator |
| ntp.flags.mode | Mode | Unsigned 8-bit integer | Mode |
| ntp.flags.vn | Version number | Unsigned 8-bit integer | Version number |
| ntp.keyid | Key ID | Byte array | Key ID |
| ntp.mac | Message Authentication Code | Byte array | Message Authentication Code |
| ntp.org | Originate Time Stamp | Byte array | Originate Time Stamp |
| ntp.ppoll | Peer Polling Interval | Unsigned 8-bit integer | Peer Polling Interval |
| ntp.precision | Peer Clock Precision | Unsigned 8-bit integer | Peer Clock Precision |
| ntp.rec | Receive Time Stamp | Byte array | Receive Time Stamp |
| ntp.refid | Reference Clock ID | Byte array | Reference Clock ID |
| ntp.reftime | Reference Clock Update Time | Byte array | Reference Clock Update Time |
| ntp.rootdelay | Root Delay | Double-precision floating point | Root Delay |
| ntp.rootdispersion | Clock Dispersion | Double-precision floating point | Clock Dispersion |
| ntp.stratum | Peer Clock Stratum | Unsigned 8-bit integer | Peer Clock Stratum |
| ntp.xmt | Transmit Time Stamp | Byte array | Transmit Time Stamp |