NEC SL1100, Networking Manual

Page: 231 / 292

Networking Manual 11 - 1
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11
NAPT
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ECTION
1
NAPT
1.1 Introduction
NAPT, or Network Address Port Translation, is a method by which
a private address (or addresses) and their TCP/UDP ports are
translated into a single public address and its TCP/UDP ports. In
the case of IP phones with the SL1100 it allows their connection to
a public (Internet) IP address which is then converted back to the
private (non-Internet) IP address on the customer’s network. The
translation is available at the SL1100 end as well as at the remote
IP Phone end of the connection if required.