Avaya Business Secure Router 222 Configuration - Basics Manuale Utente Scaricare il pdf (Pagina 135)

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Chapter 8 Network Address Translation (NAT) Screens 135

Nortel Business Secure Router 222 Configuration — Basics

Figure 36 NAT application with IP Alias

NAT mapping types

NAT supports five types of IP/port mapping. They are:

• One to One: In One-to-One mode, the Business Secure Router maps one

local IP address to one global IP address.

• Many to One: In Many-to-One mode, the Business Secure Router maps

multiple local IP addresses to one global IP address. This is equivalent to

SUA (for example, PAT, port address translation), the Single User Account

feature (the SUA Only option).

• Many to Many Overload: In Many-to-Many Overload mode, the Business

Secure Router maps the multiple local IP addresses to shared global IP

addresses.

• Many One to One: In Many-One-to-One mode, the Business Secure Router

maps each local IP address to a unique global IP address.

• Server: With this type you can specify inside servers of different services

behind the NAT to be accessible to the outside world. Port numbers do not

change for One-to-One and Many-One-to-One NAT mapping types.

Business Secure Router

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