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Max 410/420/430 User’s Guide – Chapter 5
39
UDP Port 21000
The table below explains the procedure for opening
firewall ports for your Max gateway. This example
illustrates the UDP Port (OPAL) assignments (with a
default start point of 7000) for a 4-port Max gateway.
MAX
PORT #
FIREWALL
PORT TYPE
FIREWALL
PORT
NUMBERS
1 UDP Port (OPAL) 7000 - 7001
2 UDP Port (OPAL) 7002 - 7003
3 UDP Port (OPAL) 7004 - 7005
4 UDP Port (OPAL) 7006 - 7007
In this example, the range to be opened is 7000 to 7015.
The range is determined by the following formula:
Max Default Start Port + (Number of Max Ports * 2) – 1
or in this example:
7000 + (4*2) – 1 = 7007
The table shows the firewall port assignments based on
the default start port. If the Max gateway default start
ports noted above are in conflict with your corporate
firewall settings, you may assign port numbers in the
range of 4000 to 65000 by applying the same principle
illustrated in the table.
The TCP Port and UDP Port start parameters in the
Network Configuration table must match the open firewall
ports.
If there are multiple Max gateways behind a firewall, this
process must be repeated for each unit, using different
UDP ports & TCP ports.
NOTE: The Net2Phone Max gateway will
not work behind a proxy server.