2011-04-08 2026-04-02 IETF Review 0x00 DODAG Information Solicitation 0x01 DODAG Information Object 0x02 Destination Advertisement Object 0x03 Destination Advertisement Object Acknowledegment 0x04 P2P Discovery Reply Object 0x05 P2P Discovery Reply Object Acknowledgement 0x06 Measurement Object 0x07 Destination Cleanup Object 0x08 Destination Cleanup Object Acknowledgment 0x09 Projected DAO Request (P-DAO-REQ) 0x0A Projected DAO Request Acknowledgment (PDR-ACK) 0x0B-0x7A Unassigned 0x80 Secure DODAG Information Solicitation 0x81 Secure DODAG Information Object 0x82 Secure Destination Advertisement Object 0x83 Secure Destination Advertisement Object Acknowledgment 0x84 Secure P2P Discovery Reply Object 0x85 Secure P2P Discovery Reply Object Acknowledgement 0x86 Secure Measurement Object 0x87 Secure Destination Cleanup Object 0x88 Secure Destination Cleanup Object Acknowledgment 0x89 Unassigned 0x8A Consistency Check 0x8B-0xFF Unassigned IETF Review 0 No Downward routes maintained by RPL 1 Non-Storing Mode of Operation 2 Storing Mode of Operation with no multicast support 3 Storing Mode of Operation with multicast support 4 P2P Route Discovery Mode of Operation 5 Non-Storing Mode of Operation with ingress replication multicast support 6 Unassigned 7 Reserved IETF Review 0x00 Pad1 0x01 PadN 0x02 DAG Metric Container 0x03 Routing Information 0x04 DODAG Configuration 0x05 RPL Target 0x06 Transit Information 0x07 Solicited Information 0x08 Prefix Information 0x09 Target Descriptor 0x0A P2P Route Discovery 0x0B RREQ 0x0C RREP 0x0D ART 0x0E RNFD Option 0x0F Stateful Storing Mode VIO (SM-VIO) 0x10 Source-Routed Non-Storing Mode VIO (NSM-VIO) 0x11 Sibling Information Option (SIO) 0x12-0xFF Unassigned IETF Review 0 A basic Objective Function that relies only on the objects that are defined in . 1 Minimum Rank with Hysteresis Objective Function (MRHOF) 2-65535 Unassigned IETF Review 0 CCM with AES-128 RSA with SHA-256 1-255 Unassigned Unassigned IETF Review 0-7 Unassigned IETF Review 0 0 See Figure 11 1 0 See Figure 11 2 0 See Figure 11 3 0 See Figure 11 0 1 See Figure 11 1 1 See Figure 11 2 1 See Figure 11 3 1 See Figure 11 0 2 See Figure 11 1 2 See Figure 11 2 2 See Figure 11 3 2 See Figure 11 0 3 See Figure 11 1 3 See Figure 11 2 3 See Figure 11 3 3 See Figure 11 IETF Review 0-7 Unassigned IETF Review 0-7 Unassigned IETF Review 0 DAO-ACK request (K) 1 DODAGID field is present (D) 2 Projected DAO (P) 3-7 Unassigned IETF Review 0 DODAGID field is present (D) 1 Projected DAO Acknowledgment (P) 2-7 Unassigned IETF Review 0 CC Response (R) 1-7 Unassigned IETF Review 0 Projected Routes Support (D) 1 Root Proxies EDAR/EDAC (P) 2 Enable Compression per RFC 8138 (T) 3 RPI 0x23 enable 4 Authentication Enabled (A) 5-7 Path Control Size (PCS) IETF Review 0 Advertiser address in Full (F) 1 Proxy EDAR Requested (X) 2-3 P-Field (2 bits) RFC9685, Section 14.1 RFC9926 IETF Review 0 External (E) 1 Invalidate previous route (I) 2-7 Unassigned IETF Review 0 Version Predicate match (V) 1 InstanceID Predicate match (I) 2 DODAGID Predicate match (D) 3-7 Unassigned IETF Review 0 DCO-ACK request (K) 1 DODAGID field is present (D) 2-7 Unassigned IETF Review 0 DODAGID field is present (D) 1-7 Unassigned IETF Review 0 Success / Unqualified acceptance 1-63 Unassigned IETF Review 0 Unqualified rejection 1 No routing entry 2 Out of Resources 3 Error in VIO 4 Predecessor Unreachable 5 Unreachable Target 6-63 Unassigned Standards Action 0 Down (O) 1 Rank-Error (R) 2 Forwarding-Error (F) 3 Projected-Route (P) 4-255 Unassigned Standards Action 0 PDR-ACK requested (K) 1 Requested path should be redundant (R) 2-255 Unassigned Standards Action Standards Action 0 Unqualified Acceptance 1-63 Unassigned Standards Action 0 Unqualified Rejection 1 Transient Failure 2-63 Unassigned Standards Action Standards Action 0 'S' flag: Sibling in same DODAG as self 1 'B' flag: Connectivity to the sibling is roughly symmetrical 2-4 Unassigned