Netopia 4542 User Manual

In order to suppor t this type of mapping, you define two address ranges. First, you define a public range which 
contains the first and last public address to be used and the way in which these addresses should be used 
(PAT, static, or dynamic). You then configure an address map which defines the private IP address or addresses 
to be used and which public range they should be mapped to. You add the address map to the list of address 
maps which are configured, creating a map list. The mappings in the map list are order-dependent and are 
compared in order from the top of the list to the bottom. If a par ticular resource is not available, subordinate 
mappings can be defined that will redirect traffic.

MultiNat suppor ts the following IP protocols:

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PAT: TCP/UDP traffic which does not carr y source or destination IP addresses or por ts in the data stream 
(i.e., HTTP, Telnet, ‘r’ commands, tftp, NFS, NTP, SMTP, NNTP, etc.).

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Static NAT: All IP protocol traffic which does not carr y or other wise rely on the source or destination IP 
addresses in the data stream.

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Dynamic NAT: All IP protocol traffic which does not carr y or other wise rely on the source or destination IP 
addresses in the data stream.

You configure the MultiNAT features through the console menu:

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For a simple 1-to-many NAT configuration (classic NAT or PAT), use the 

, 

described below.

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For the more advanced features, such as ser ver lists and dynamic NAT, follow the instructions in:

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