| hsrp.auth_data | Authentication Data | String | Contains a clear-text 8 character reused password |
| hsrp.group | Group | Unsigned 8-bit integer | This field identifies the standby group |
| hsrp.hellotime | Hellotime | Unsigned 8-bit integer | The approximate period between the Hello messages that the router sends |
| hsrp.holdtime | Holdtime | Unsigned 8-bit integer | Time that the current Hello message should be considered valid |
| hsrp.opcode | Op Code | Unsigned 8-bit integer | The type of message contained in this packet |
| hsrp.priority | Priority | Unsigned 8-bit integer | Used to elect the active and standby routers. Numerically higher priority wins vote |
| hsrp.reserved | Reserved | Unsigned 8-bit integer | Reserved |
| hsrp.state | State | Unsigned 8-bit integer | The current state of the router sending the message |
| hsrp.version | Version | Unsigned 8-bit integer | The version of the HSRP messages |
| hsrp.virt_ip | Virtual IP Address | IPv4 address | The virtual IP address used by this group |