This may help.
LISTENING This response indicates that a process is listening on the
target
port. PortQry received a response from the target port.
NOT LISTENING This response indicates that no process is listening on the
target port. PortQry received one of the following Internet Control
Message
Protocol (ICMP) messages from the target port:
Destination unreachable
Port unreachable
FILTERED This response indicates that the target port is being filtered.
PortQry did not receive a response from the target port. A process may or
may not be listening on the target port. By default, PortQry queries a TCP
port three times before it returns a response of FILTERED and queries a
UDP
port one time before it returns a response of FILTERED.
http://support.microsoft.com/kb/832919
--
Regards,
Dave Patrick ....Please no email replies - reply in newsgroup.
Microsoft Certified Professional
Microsoft MVP [Windows]
http://www.microsoft.com/protect
:
| Dave,
| Many thanks for your hint.
| I managed to access the TCP/IP Filtering tab, where "Enable TCP/IP
| Filtering" is not checked.
| I assume that Filtering is disabled.
| Then how is it possible for MS Port Query to report that Port 1433 is
| FILTERED?
| On a second server with the same settings (designed to mirror the first
one)
| Port Query reports that Port 1433 is NOT LISTENING.
| On both servers we have a SQL Server instance set up to listen on port
1433.
|
| My thanks again,
| Dan
ort