Unanswered: Oracle Remote Connection uses always different ports
I have a problem with the remote connection from an oracle client to an oracle server. In between the the network path there is a firewall. When I try to connect with dba studio or sqlplus worksheet in the firewall logs I can see one port, which is always the same and which can pass the firewall and another port, which changes every time I try to connect. Because I don't know the port, which is used next time, the connect is always dropped on the firewall.
Can anybody tell me, how I configure my oracle client to use always the same ports for the connection?