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E-8 User’s Reference Guide
Within Exported Services is a pop-up containing a list of well known TCP and UDP services that can be
redirected to a single host on the Netopia R310’s LAN interface. There is also an “Other...” option which allows
for manual configuration of additional TCP or UDP ports. There can be a total of 32 Exported Services that can
be defined.
When a particular type of service is redirected to an IP address, that service is removed from the pop-up list,
since only one type of service can be redirected to a single host. However several different types of services
can be redirected to a single or multiple hosts. For example, port 80 (WWW Server) could be redirected to
192.168.5.3 on the Netopia R310’s LAN interface as well as port 23 (Telnet) can be redirected to that same
host.
Summary
NAT is a powerful 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 interface. Note that the addresses listed in this appendix are for
demonstration purposes only. Do not use these addresses when configuring your local network.
Add Exported Service
+-Type------Port--+
+-----------------+
Service... | ftp 21 |
| telnet 23 |
| smtp 25 |
Local Server's IP Address: | tftp 69 |
| gopher 70 |
| finger 79 |
| www-http 80 |
| pop2 109 |
| pop3 110 |
| snmp 161 |
| timbuktu 407 |
| pptp 1723 |
| irc 6667 |
| Other... |
+-----------------+
ADD EXPORT NOW CANCEL