Opening ports on a 2003 server

[dtremain]

I have a situation where a company is running a sql software app, the server
side needing tcp ports 1583 and 3351 open for communication with the client
side. On the server we have the Windows Firewall turned off and we are not
filtering any traffic coming in and out of the box. When we try to connect
to the databases we are getting an error (on the clients) stating that the
sql manager isn't running on the specified port.

When I run a netstat -an command I find that the 1583 port is in the
close_wait state, and port 3351 is not showing at all. When we contact the
software vendor they claim that we are blocking ports - but we are not
blocking anything from coming in or out of the nic.

What can I do to further ensure that these ports are not being blocked and
keep them open for traffic?

 

[Robert L [MVP - Networking]]

can you telnet port 1583 and 3351 from other computers?

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
"dtremain" <dtremain@discussions.microsoft.com> wrote in message news:269CF680-6E83-4A9F-8525-AA6C3848CF4E@microsoft.com...
I have a situation where a company is running a sql software app, the server
side needing tcp ports 1583 and 3351 open for communication with the client
side. On the server we have the Windows Firewall turned off and we are not
filtering any traffic coming in and out of the box. When we try to connect
to the databases we are getting an error (on the clients) stating that the
sql manager isn't running on the specified port.

When I run a netstat -an command I find that the 1583 port is in the
close_wait state, and port 3351 is not showing at all. When we contact the
software vendor they claim that we are blocking ports - but we are not
blocking anything from coming in or out of the nic.

What can I do to further ensure that these ports are not being blocked and
keep them open for traffic?

 

[dtremain]

Actually we found out that the problem was being caused by a spam catching
plug-in that is installed on the same server (also acts as an email server).
When the server boots the plug-in is catching the port before the software
can get it, which poses yet another problem, now I've got to find a
work-around for that issue.

Thank you for your response.
Dave T.

"Robert L [MVP - Networking]" wrote:

> can you telnet port 1583 and 3351 from other computers?
>
> Bob Lin, MS-MVP, MCSE & CNE
> Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
> How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
> "dtremain" <dtremain@discussions.microsoft.com> wrote in message news:269CF680-6E83-4A9F-8525-AA6C3848CF4E@microsoft.com...
> I have a situation where a company is running a sql software app, the server
> side needing tcp ports 1583 and 3351 open for communication with the client
> side. On the server we have the Windows Firewall turned off and we are not
> filtering any traffic coming in and out of the box. When we try to connect
> to the databases we are getting an error (on the clients) stating that the
> sql manager isn't running on the specified port.
>
> When I run a netstat -an command I find that the 1583 port is in the
> close_wait state, and port 3351 is not showing at all. When we contact the
> software vendor they claim that we are blocking ports - but we are not
> blocking anything from coming in or out of the nic.
>
> What can I do to further ensure that these ports are not being blocked and
> keep them open for traffic?

 

[Robert L [MVP - Networking]]

Thank you for the update.

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
"dtremain" <dtremain@discussions.microsoft.com> wrote in message news:3203B1A9-A060-4AB1-A4EF-3A19A5CD1BC8@microsoft.com...
Actually we found out that the problem was being caused by a spam catching
plug-in that is installed on the same server (also acts as an email server).
When the server boots the plug-in is catching the port before the software
can get it, which poses yet another problem, now I've got to find a
work-around for that issue.

Thank you for your response.
Dave T.

"Robert L [MVP - Networking]" wrote:

> can you telnet port 1583 and 3351 from other computers?
>
> Bob Lin, MS-MVP, MCSE & CNE
> Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
> How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
> "dtremain" <dtremain@discussions.microsoft.com> wrote in message news:269CF680-6E83-4A9F-8525-AA6C3848CF4E@microsoft.com...
> I have a situation where a company is running a sql software app, the server
> side needing tcp ports 1583 and 3351 open for communication with the client
> side. On the server we have the Windows Firewall turned off and we are not
> filtering any traffic coming in and out of the box. When we try to connect
> to the databases we are getting an error (on the clients) stating that the
> sql manager isn't running on the specified port.
>
> When I run a netstat -an command I find that the 1583 port is in the
> close_wait state, and port 3351 is not showing at all. When we contact the
> software vendor they claim that we are blocking ports - but we are not
> blocking anything from coming in or out of the nic.
>
> What can I do to further ensure that these ports are not being blocked and
> keep them open for traffic?