What was the solution - did you/they disable the firewall completely, or just open certain ports or IP addresses? I don't know that much about firewalls - maybe they can be configured to allow only certain programs through too, e.g. they could set it to only allow sqlplus on port 1521 (or whatever your listener is on) - and not allow rman or any other program? Any other network savvy folks on the list know if that's possible? ________________________________ From: Li Li [mailto:litanli@xxxxxxxxx] I am wondering this too. They are both connecting to the listener on the same port. I was thinking maybe there's some other ports that RMAN uses too? Privileged/Confidential Information may be contained in this message or attachments hereto. Please advise immediately if you or your employer do not consent to Internet email for messages of this kind. Opinions, conclusions and other information in this message that do not relate to the official business of this company shall be understood as neither given nor endorsed by it.