RFC 3266 (rfc3266) - Page 2 of 5
Support for IPv6 in Session Description Protocol (SDP)
Alternative Format: Original Text Document
RFC 3266 Support for IPv6 in Session Description Protocol June 2002 2. Terminology The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119 [5]. 3. Syntax RFC 2373 [1] gives an ABNF for the text representation of IPv6 addresses in Appendix B. RFC 2732 [3] covers the text representation of IPv6 addresses when used within a URL. Using the ABNF described in these documents, the following updated ABNF for SDP is proposed. uri = ; defined in RFC 1630 and RFC 2732 multicast-address = IP4-multicast / IP6-multicast IP4-multicast = m1 3*( "." decimal-uchar ) "/" ttl [ "/" integer ] ; IPv4 multicast addresses may be in the ; range 224.0.0.0 to 239.255.255.255 m1 = ("22" ("4"/"5"/"6"/"7"/"8"/"9")) / ("23" DIGIT )) IP6-multicast = hexpart ; IPv6 address starting with FF addr = FQDN / unicast-address FQDN = 4*(alpha-numeric/"-"/".") ; fully qualified domain name as specified ; in RFC 1035 unicast-address = IP4-address / IP6-address IP4-address = b1 3*("." decimal-uchar) / "0.0.0.0" b1 = decimal-uchar ; less than "224"; not "0" or "127" ; The following is from RFC 2373 Appendix B. It is a direct copy. IP6-address = hexpart [ ":" IP4-address ] hexpart = hexseq / hexseq "::" [ hexseq ] / "::" [ hexseq ] Olson, et. al. Standards Track
