9. Message destinations
9. Message destinations
This information is provided elsewhere in the document, but is summarized here for convenience.
| Message Type | Destination Group |
|---|---|
| General Query | ALL-SYSTEMS (224.0.0.1) |
| Group-Specific Query | The group being queried |
| Membership Report | The group being reported |
| Leave Message | ALL-ROUTERS (224.0.0.2) |
Note: in older (i.e., non-standard and now obsolete) versions of IGMPv2, hosts send Leave Messages to the group being left. A router SHOULD accept Leave Messages addressed to the group being left in the interests of backwards compatibility with such hosts. In all cases, however, hosts MUST send to the ALL-ROUTERS address to be compliant with this specification.