Contents Index Tuning TCP/IP performance Connecting on a dial-up network connection

ASA Database Administration Guide
  Client/Server Communications
    Using the TCP/IP protocol

Connecting across a firewall


There are restrictions on connections when the client application is on one side of a firewall, and the server is on the other. Firewall software filters network packets according to network port. Also, it is common to disallow UDP packets from crossing the firewall.

When connecting across a firewall, you must use a set of communication parameters in the CommLinks (LINKS) connection parameter of your application's connection string.

Example 

The following connection string fragment restricts the client application to ports 5050 through 5060, and connects to a server named myeng running on the machine at address myhost using the server port 2020. No UDP broadcast is carried out because of the DoBroadcast option.

Eng=myeng;Links=tcpip(ClientPort=5050-5060;Host=myhost;Port=2020;DoBroadcast=NONE)

For more information, see the following:


Contents Index Tuning TCP/IP performance Connecting on a dial-up network connection