RFC 3138 (rfc3138) - Page 2 of 4
Extended Assignments in 233/8
Alternative Format: Original Text Document
RFC 3138 Extended Assignments in 233/8 June 2001 2. Overview http://www.iana.org/assignments/multicast-addresses defines a mechanism for assignment of multicast addresses that are generally for use in network control applications. It is envisioned that those addresses assigned from the EGLOP space (233.252.0.0 - 233.255.255.255) will be used by applications that cannot use Administratively Scoped Addressing [RFC 2365], GLOP Addressing [RFC 2770], or Source Specific Multicast (Source Specific Multicast, or SSM, is an extension of IP Multicast in which traffic is forwarded to receivers from only those multicast sources for which the receivers have explicitly expressed interest, and is primarily targeted at one-to-many (broadcast) applications). 3. Assignment Criteria Globally scoped IPv4 multicast addresses in the EGLOP space are assigned by a Regional Registry (RIR). An applicant MUST, as per [IANA], show that the request cannot be satisfied using Administratively Scoped addressing [RFC 2365], GLOP addressing [RFC 2770], or SSM. The fine-grained assignment policy is left to the assigning RIR. 4. Security Considerations The assignment scheme described in this document does not effect the security properties of the the single source or any source multicast service models. 5. Acknowledgments Kurt Kayser, Mirjam Kuehne, Michelle Schipper and Randy Bush provided many insightful comments on earlier versions of this document. 6. Author's Address David Meyer Sprint 12502 Sunrise Valley Dr Reston VA, 20191 EMail: dmm@sprint.net Meyer Informational
