This option is provided for connections across firewalls, as firewall software filters according to TCP/UDP port. It is recommended
that you do not use this protocol option unless you need to for firewall reasons.
The ClientPort option designates the port number on which the client application communicates using TCP/IP. You can specify
a single port number, or a combination of individual port numbers and ranges of port numbers. For example:
It is best to specify a list or a range of port numbers if you want to make multiple connections using a given Data Source
or a given connect string. If you specify a single port number, then your application will be able to maintain only one connection
at a time. In fact, even after closing the one connection, there is a several minute timeout period during which no new connection
can be made using the specified port. When you specify a list and/or range of port numbers, the application keeps trying port
numbers until it finds one to which it can successfully bind.
The following connection string fragment makes a connection from an application that can use ports 5050 through 5060, and
ports 5040 and 5070 for communicating with a server named my-server using the default server port: