Multitech MTCBA-H3-EN3-P1 Guide de l'utilisateur télécharger pdf (Page 32)

Chapter 3 – Using the Web Management Software

Multi-Tech Systems, Inc. MultiModem rCell User Guide 32

PPP

PPP > PPP Configuration

NAT Configuration

NAT Enable/disable NAT (Network Address Translation). The default is Enable.

If NAT is enabled:

 Your LAN can use one set of IP addresses for internal traffic and a second set of

addresses for external traffic. In other words, the router with NAT does the

simple IP routing between the LAN interface and the WAN interface. NAT hides

the LAN address behind a single IP address on the wireless side.

 Your internal addresses are shielded from the public Internet.

If NAT is disabled:

 The router functions without performing any address translation on the packets

passing through it.

 Masquerading of packets originating from the LAN is disabled.

 Address translation of packets arriving from the WAN is also disabled.

 Any DNAT Configuration previously setup in the DNAT Configuration screen is

disabled. This prevents the user from adding any DNAT rules, which if allowed

would defeat the purpose of enabling Routing.

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Multitech MTCBA-H3-EN3-P1 Guide de l'utilisateur Page 32