However, when accessing a database on another machine, Firebird uses TCP/IP Port 3050.
Normally, this is not an issue ... but when Windows XP SP2 is installed, the Windows Firewall is enabled and most of the ports are blocked (including port 3050). As a result, other computers will not be able to access Firebird tables.
How to Unblock Port 3050
Control Panel / Windows Firewall / ExceptionsClick the Add Port... button and set the following parameters.
Name Firebird Port number 3050 TCP selectedThese instructions are for Windows XP SP2. The exact details may be different for other systems.