Problem onnecting two online databases

Hi, Here's my problem. I have machine A & B both Sun machines on the same LAN. Both machine's A & B are running online 7. i am trying to access machine B's databases from machine A. I have changed the sqlhosts file on machine A to reflect the database of machine B (dbservername, nettype-ontlitcp, hostname, service). I have defined the service in /etc/services on machine A and allocated a unique name & port number. I shutdown online and enter onmonitor to add the new dbservername. After adding the new name under PARAMETERS:SHARED MEMORY:SERVER ALIASES I try and bring online to quiescent mode and I get the following error "listener-thread:err = -25572:Network driver cannot bind a name to the port. System error = 8" From machine A, I am able to telnet & ping machine B. The service/port number is unique for machines A & B. I have tried all possible combinations with no success. Am I overlooking/missing something? At this point any advice is appreciated. Thanks Sham Vaidya smvaidya@auto.rockwell.com