Hi,
I have a two node RAC 11.2.0.3. when i connect to the database using the SCAN IP from a client located in front of the firewall, everything is working fine. but when i try the same from a client located behind a firewall,and the scan listener chooses to redirect the connection to the local listener on the node running the scan_listener the connection succeeds. but if the scan listener redirects to the other node (not running the scan listener) the following error is returned (ORA-12170: TNS:Connect timeout occurred). the two clients (the one inside the firewall and the outer one) have typical configurations including (hosts,tnsnames and version).
Also when i use manual load balancing using VIPs or public IP in the tnsnames.ora it's working fine even outside the firewall.
is there any specific firewall configuration regarding the scan?? all ports are opened from both directions (any to any)
BR,
Omari