Received March 2, 2001
From: "Frost, Thomas F (Tom), ALCOO" <[email protected]>

This declaration is being made pursuant to the provisions of IETF IPR
Policy, Sections 10.3.1 and 10.3.2.

This is to advise the IETF that AT&T believes it owns three (3) pending
patent applications that may relate to Internet Draft documents
"draft-cain-request-routing-req-01.txt" and
"draft-cain-cdnp-known-request-routing-01.txt". To the extent that the
technology discussed in these Internet Drafts becomes an IETF Standard and
to the extent claims of AT&T's patents which issue from these three (3)
pending patent applications are required to implement the IETF Standard,
AT&T agrees that, upon written request, AT&T will offer, on a
nondiscriminatory basis, non-exclusive licenses on fair and reasonable terms
under such patent claims to implement the IETF Standard. AT&T's willingness
to grant such licenses is conditioned upon the prospective licensee granting
a reciprocal license to AT&T under any patents that the prospective licensee
has to any technology required to implement that IETF Standard.

Written requests for licenses may be sent to:

AT&T Intellectual Property Licensing
Room 2E37, Bldg. 104
180 Park Avenue
Florham Park, NJ 07932