Справочник Пользователя для Netopia R310

E-8 User’s Reference Guide

Within Expor ted Ser vices is a pop-up containing a list of well known TCP and UDP ser vices that can be
redirected to a single host on the Netopia R310’s LAN inter face. There is also an “Other...” option which allows
for manual configuration of additional TCP or UDP por ts. There can be a total of 32 Expor ted Ser vices that can
be defined.

When a par ticular type of ser vice is redirected to an IP address, that ser vice is removed from the pop-up list,
since only one type of ser vice can be redirected to a single host. However several different types of ser vices
can be redirected to a single or multiple hosts. For example, por t 80 (WWW Ser ver) could be redirected to
192.168.5.3 on the Netopia R310’s LAN inter face as well as por t 23 (Telnet) can be redirected to that same
host.

Summary

NAT is a power ful feature of the Netopia R310 and when used and set up properly can yield a secure network
while only using one IP address on the WAN inter face. Note that the addresses listed in this appendix are for
demonstration purposes only. Do not use these addresses when configuring your local network.

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