IPv6 Router Alert Option Values
- Created
 - 2001-06-29
 - Last Updated
 - 2025-06-26
 - Available Formats
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Registry Included Below
IPv6 Router Alert Option Values
- Registration Procedure(s)
 - 
          
Registry closed
 - Reference
 - [RFC2711][RFC9805]
 - Available Formats
 - 
          

CSV 
| Value | Description | Reference | 
|---|---|---|
| 0 | Datagram contains a Multicast Listener Discovery message | [RFC2710] | 
| 1 | Datagram contains RSVP message | [RFC2711] | 
| 2 | Datagram contains an Active Networks message | [RFC2711] | 
| 3 | Reserved | [RFC5350] | 
| 4-35 | Aggregated Reservation Nesting Level | [RFC3175] | 
| 36-67 | QoS NSLP Aggregation Levels 0-31 | [RFC5974] | 
| 68 | NSIS NATFW NSLP | [RFC5973] | 
| 69 | MPLS OAM (DEPRECATED) | [RFC7506][RFC9570] | 
| 70-65502 | Unassigned | |
| 65503-65534 | Reserved | [RFC9805] | 
| 65535 | Reserved | [The Internet Assigned Numbers Authority] |