Shared Server Connection Problem On Rac

Hii All
I configured dispatcher parameter in Rac environment as
"alter system set dispatchers='(address=(protocol=tcp)(host=node1-vip.domain.com))(dispatchers=10) (session=75)' scope=both sid='RAC1';
but when I run lsnrctl services I see vip ip address instead of node1-vip.domain.com so I have connection problems because Client trying to access to server via internet through Nat ip address and listener replies requests vip ip address so client can not connect the server.
I can acces to server on DEDICATED connection.
Have you idea ?
Best Regards
GI 11.2.0.2 PSU4
RDBMS 11.2.0.1
OS AIX 6.1

EB wrote:
I did exactly what document says.Parameters are
on NODE1
dispatchers (address=(protocol=tcp)(host=node1-vip.domain.com))(dispatchers=10) (session=75)
local_listener (DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=node1-vip.domain.com)(PORT=1521)))
on NODE2
dispatchers (address=(protocol=tcp)(host=node2-vip.domain.com))(dispatchers=10) (session=75)
local_listener (DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=node2-vip.domain.com)(PORT=1521)))
In document lsnrctl ouput shows host=node-vip But I cant see nor node1-vip.domain.com neither node2.domain.com just see node vip address That does not really matter - as the hostname is an alias for an IP address and as long as the hostname resolves to the correct IP address.
The issue (as I mentioned above) is that the external client needs to resolve these names to the NAT addresses. So what happens if you ping node1-vip.domain.com and node1-vip from the client? What happens when you telnet on the client to port 1521 and hosts node1-vip.domain.com or node1-vip ?
If this works and the client's Oracle connection does not, enable SQL*Net tracing on the client and look in the trace file for failed calls.
Also keep in mind that you would (by default) only have port 1521 NAT'ed. So should the client be redirected for a connection using a different port, it is unlikely that this port is NAT'ed - unless you're basically blindly NAT'ing all ports which would be unusual and risky.

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Click Kudos Thumbs Up on the right to say “Thanks” for helping!

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