Motorola 2241N-VGX Guide de l'utilisateur télécharger pdf (Page 82)

Example: A LAN Requiring Three Pinholes . The procedure on the following

pages describes how you set up your NAT-enabled Netopia Gateway to support three sepa-

rate applications. This requires passing three kinds of speciﬁc IP trafﬁc through to your

LAN.

Application 1

: You have a Web server located on your LAN behind your Netopia Gateway

and would like users on the Internet to have access to it. With NAT “On”, the only externally

visible IP address on your network is the Gateway’s WAN IP (supplied by your Service Pro-

vider). All trafﬁc intended for that LAN Web server must be directed to that IP address.

Application 2

: You want one of your LAN stations to act as the “central repository” for all

email for all of the LAN users.

Application 3

: One of your LAN stations is specially conﬁgured for game applications. You

want this speciﬁc LAN station to be dedicated to games.

A sample table to plan the desired pinholes is:

For this example, Internet protocols TCP and UDP must be passed through the NAT security

feature and the Gateway’s embedded Web (HTTP) port must be re-assigned by conﬁguring

new settings on the Internal Servers page.

☛ TIPS for making Pinhole Entries:

1. If the port forwarding feature is required for Web services, ensure that the

embedded Web server’s port number is re-assigned PRIOR to any Pinhole

data entry.

2. Enter data for one Pinhole at a time.

3. Use a unique name for each Pinhole. If you choose a duplicate name, it will

overwrite the previous information without warning.

WAN Trafﬁc Type Protocol Pinhole Name

LAN Internal IP

Address

Web TCP my-webserver 192.168.1.1

Email TCP my-mailserver 192.168.1.2

Games UDP my-games 192.168.1.3

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Motorola 2241N-VGX Guide de l'utilisateur Page 82