The currently defined DPI packet types as defined in the snmp_dpi.h include file are:

  #define SNMP_DPI_GET             1
  #define SNMP_DPI_GET_NEXT        2  /* old DPI Version 1.x style */
  #define SNMP_DPI_GETNEXT         2
  #define SNMP_DPI_SET             3
  #define SNMP_DPI_TRAP            4
  #define SNMP_DPI_RESPONSE        5
  #define SNMP_DPI_REGISTER        6
  #define SNMP_DPI_UNREGISTER      7
  #define SNMP_DPI_OPEN            8
  #define SNMP_DPI_CLOSE           9
  #define SNMP_DPI_COMMIT         10
  #define SNMP_DPI_UNDO           11
  #define SNMP_DPI_GETBULK        12
  #define SNMP_DPI_TRAPV2         13  /* reserved, not implmented */
  #define SNMP_DPI_INFORM         14  /* reserved, not implemented */
  #define SNMP_DPI_ARE_YOU_THERE  15

See the following related information.

• The snmp_dpi_hdr structure