History for IPR disclosure
SSH's Patent Statement pertaining to NAT

From: http://www.ietf.org/ietf-ftp/IPR/SSH-NAT

This message was received on December 8, 2000
From: Markus Levlin


In order to allow the widest possible use of NAT traversal technology,
SSH Communications Security Corp presents the following statement
regarding its patents and patent applications relating to NAT
traversal.

SSH Communications Security Corp hereby makes it known that it will
not assert any claims in any patents issued in any country based on

- the Finnish patent application FI974665 or any patent application
listing the same as a priority application; or

- the US patent application 09/333,829 or any patent application
listing the same as a priority application,

against any party that makes, uses, sells, imports, or offers for sale
a conforming implementation of an IETF standards-track specification
of an IPSec NAT traversal module.

This statement is limited in that SSH Communications Security Corp
does not give any rights to incorporate NAT traversal technology
covered by patents of SSH Communications Security Corp in
implementations for any other protocols other than the IETF
standards-track IPSec protocols.

This statement is limited in that SSH Communications Security Corp
retains the right to assert said patents against any party and any
subsidiary of a party that asserts a patent it owns or controls,
either directly or indirectly, against SSH Communications Security
Corp or any of its subsidiaries or successors in title for any
implementation of or operation of any software or system implementing
technology specified by the IETF.  SSH Communications Security Corp
also retains the right to claim damages for any prior use by such a
party of NAT traversal technology covered by patents of SSH
Communications Security Corp.

For a written agreement confirming this statement contact

        Intellectual Property Rights Manager
        SSH Communications Security Corp
        Fredrikinkatu 42
        00100 Helsinki
        Finland