The following was received November 21, 2000 From: Miriam Kadansky - SUN Microsystems November 21, 2000 Sun will grant the IETF and implementers of IETF Reliable Multicast specifications a nonexclusive license to use its essential patents that are necessary to implement IETF Reliable Multicast specifications on reasonable and nondiscriminatory terms and conditions provided that the IETF and such implementers of IETF Reliable Multicast specifications provide a reciprocol license consisting of the same terms and conditions to Sun, the IETF and other implementers of IETF Reliable Multicast specifications. Written requests for licenses may be sent to: Robert F. Sproull Vice President and Sun Fellow Sun Microsystems, Inc. 1 Network Drive Mail Stop BUR02-311 Burlington, MA 01803