Overview - Extreme Networks Summit 200-24 Installation And User Manual

10
Network Address Translation (NAT)
This chapter covers the following topics:
• Overview on page 121
• Internet IP Addressing on page 122
• Configuring VLANs for NAT on page 122
• Configuring NAT on page 124
• Configuring NAT Rules on page 124
• Creating NAT Rules on page 125
• Displaying NAT Settings on page 127
• Disabling NAT on page 128

Overview

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 rewrite the source IP address and Layer 4 port of the packets.
Figure 23: NAT Overview
Inside Outside
NAT
switch
Outgoing Outgoing
Private Internet
Network
Incoming Incoming
EW_078
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