ZyXEL SBG3300-N Series User Guide - Page 160
NAT Definitions
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Chapter 10 Network Address Translation (NAT) The following table describes the fields in this screen. Table 63 Address Mapping: Add/Edit LABEL Type DESCRIPTION Choose the IP/port mapping type from one of the following. One-to-One: This mode maps one local IP address to one global IP address. Note that port numbers do not change for the One-to-one NAT mapping type. Local Start IP Local End IP Set OK Cancel Many-to-One: This mode maps multiple local IP addresses to one global IP address. This is equivalent to SUA (that is, PAT, port address translation), the Device's Single User Account feature that previous routers supported only. Enter the starting Inside Local IP Address (ILA). Enter the ending Inside Local IP Address (ILA). This field is blank for One-to-One mapping types. Select the number of the mapping set to configure. Use the Broadband screens to map this NAT address mapping set to a WAN interface. Click OK to save your changes. Click Cancel to exit this screen without saving. 10.8 Technical Reference This part contains more information regarding NAT. 10.8.1 NAT Definitions Inside/outside denotes where a host is located relative to the Device, for example, the computers of your subscribers are the inside hosts, while the web servers on the Internet are the outside hosts. Global/local denotes the IP address of a host in a packet as the packet traverses a router, for example, the local address refers to the IP address of a host when the packet is in the local network, while the global address refers to the IP address of the host when the same packet is traveling in the WAN side. 160 SBG3300-N Series User's Guide
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