Section 1:
----------

OLD:
	Firewalls are specifically out-of-scope for this specification; 
	however, this specification does cover the inherent
	filtering aspects of NATs which may resemble firewall operation

NEW:
	A comprehensive description of firewall behaviors and
	associated requirements is specifically out-of-scope for
	this specification. However, this specification does
	cover basic firewall aspects present in NATs (see
	section 5).  


Section 10, second paragraph:

OLD:
	It is worth nothing...

NEW:
	It is worth noting...


Section 4.2.1
-------------

Last paragraph before REQ-3a:

Add the following sentence to the end of the paragraph:

	[RFC 0768] specifies that the source port is set to zero if no reply 
	packet are expected. In this case it does not matter what the NAT maps 
	it to as the source port will not be used. However, many common OS APIs do 
	not allow a user to send from port zero, applications do not use port 
	zero, and the behavior of various existing NATs with regards to a packet 
	with a source of port zero is unknown. This document does not specify 
	any normative behavior for a NAT when handling a packet with a source 
	port of zero which means that applications can not count on any sort 
	of deterministic behavior for these packets. 

REQ-3a:

OLD:
	...range 1-1023...

NEW:
	...range 0-1023...


Section 12, REQ-3a:
-------------------

OLD:
	...range 1-1023...

NEW:
	...range 0-1023...

Section 13, second paragraph:
OLD:

    This document recommends that the timers for mapping be refreshed
    only on outgoing packets and does not make recommendations about
    whether or not inbound packets should update the timers.

NEW:

    This document recommends that the timers for mapping be refreshed
    only on outgoing packets (see REQ-6) and does not make
                             ^^^^^^^^^^^
    recommendations about whether or not inbound packets should update
    the timers.


Section 13, third paragraph:
----------------------------

OLD:
    This document recommends that the NAT filters be specific to the
    external IP address only and not to the external IP and port.

NEW:

    This document recommends that the NAT filters be specific to the
    external IP address only (see REQ-8) and not to the external IP
                             ^^^^^^^^^^^
    address and UDP port.
    ^^^^^^^     ^^^


Section 16:
-----------

Add "Peter Koch" to the Acknowledgements.