Specifications

Part Number: 120151-00 Rev 02 Page 1
Release Notes for ExtremeWare v6.2.1
Overview
This document contains the following sections:
• New features in ExtremeWare v6.2
• Supported hardware
• “i” Chipset unique features
• Instructions for upgrading from v6.1
• Supported limits
• Clarifications, known behaviors, and problems
For information on issues resolved from previous releases, you can obtain previous versions of release
notes through a login account on the Extreme Networks Support web site at
http://www.extremenetworks.com/support/support.asp.
New Features in ExtremeWare 6.2
Following are descriptions of features introduced or enhanced in ExtremeWare 6.2 and subsequent
releases. These features are described or documented in more detail in the ExtremeWare Software User
Guide or the ExtremeWare Software Command Reference Guide for the relevant software version.
Features Added or Enhanced in v6.2.0
• Network Address Translation (NAT): NAT is a feature that allows one set of IP addresses, typically
private IP addresses, to be converted to another set of IP addresses, typically public Internet IP
addresses. This conversion is done transparently by having a NAT device (any Extreme Networks
switch using the “i” chipset) rewrite the source IP address and Layer 4 port of the packets.
NAT is typically used to conserve IP address space by mapping a large number of inside (private)
addresses to a much smaller number of outside (public) addresses. The NAT modes in the 6.2
release only support translating traffic initiating from inside addresses.
See Chapter 9, “Network Address Translation” in the ExtremeWare Software Command Reference Guide
for a detailed description of the commands related to this feature. The feature is also described in
Chapter 9 of the ExtremeWare Software User Guide.