Cisco IE-5000 User Manual

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Cisco Systems, Inc. www.cisco.com
Configuring Layer 2 NAT
One-to-one (1:1) Layer 2 Network Address Translation (NAT) is a service that allows the assignment of a unique public
IP address to an existing private IP address (end device), so that the end device can communicate on both the private
and public subnets. This service is configured in a NAT-enabled device and is the public “alias” of the IP address
physically programmed on the end device. This is typically represented by a table in the NAT device.
Layer 2 NAT has two translation tables where private-to-public and public-to-private subnet translations can be defined.
Layer 2 NAT is a hardware based implementation that provides the same high level of (bump-on-the-wire) wire-speed
performance. This implementation also supports multiple VLANs through the NAT boundary for enhanced network
segmentation.
For information about configuring Layer 2 NAT on a Cisco Industrial Ethernet Switch, see Layer 2 NAT Software
Configuration Guide for Cisco Industrial Ethernet Switches.
Note - The IE 4010 and 5000 follow the same rules documented in the Layer 2 Nat guide.

Cisco IE-5000 Specifications

General

Model	IE-5000
Category	Industrial Ethernet Switch
Switching Capacity	128 Gbps
Forwarding Rate	95.2 Mpps
MAC Address Table Size	16, 000 entries
Ports	16 or 24 10/100/1000 ports
Uplink Ports	4 SFP ports
Operating Temperature	-40°C to 70°C
Power Supply	Dual redundant power supplies
Mounting	DIN rail
Management	Web GUI, CLI, SNMP
Input Voltage	24 VDC or 110/220 VAC
Layer	Layer 2/3
Jumbo Frame Support	Up to 9216 bytes