User Guide

Introduction
Routed Ethernet
Routed PPPoE/PPPoA
CIP & IP Routing
16 Network Security - NAT & PAT
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3EC 36231 ABAA TCZZA Ed. 01
16.2 Packet Services and NA(P)T
The STPro supports NA(P)T to be used in combination with most
of its packet services, i.e. for:
 Routed Ethernet
 Routed PPPoE
 Routed PPPoA
 CIP & IP Routing.
You can enable/disable NA(P)T via the 'MER' page per Routed
Ethernet entry.
This allows the negotiated static IP address or dynamically
assigned IP address (via the embedded Routed Ethernet DHCP
client) used for the Routed Ethernet connection to be shared
amongst multiple local PCs.
You can enable/disable NA(P)T via the 'Detailed configuration'
table per Routed PPPoE and/or PPPoA entry. This allows the STPro
to decouple your local IP addresses from the public IP address
negotiated during a session.
You can enable/disable NA(P)T via the 'IP address' table for each
IP address of type CIP. This allows the STPro to decouple the
explicit assigned or implicit assigned IP addresses from your local
network configuration. That way, the STPro is able to act as a
genuine LIS member and to route between the CIP LIS and your
LAN.