Telindus 1031, User And Reference Manual

Page: 133 / 394

Telindus 1031 Router Chapter 7
User manual Configuring the router
123
7.4.6 PAT limitations workaround
Use the following to partly overcome the PAT limitations:
• Use the
portTranslations
attribute to define specific port number ranges that should not be translated.
Refer to
telindus1031/router/defaultNat/portTranslations
on page 215 .
• Use the
servicesAvailable
attribute to define specific port number ranges for incoming Internet traffic that
should not be translated. Instead it is sent to the corresponding private IP address. Refer to
telindus1031/router/defaultNat/servicesAvailable
on page 216 .
Example of a
portTranslations
table
TMA is an example of an application that does
not support port translation. If you want to make
TMA connections from your local network to
the outside world, you have to list TMA port
number 1728 in this table. However, keep in
mind that even then it is still not possible to
have two simultaneous TMA sessions to the same outside world address.
If you do not want that UDP packets with port numbers in the range 2000 up to 3000 are sent to the out-
side world, then you also have to include those in the table.
Example of a servicesAvailable table
In this example, a web server with address
192.168.47.250 on the local network is acces-
sible from the Internet using the PAT address
instead of using the server address.