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Author Topic: Passing SQL Server traffic  (Read 4285 times)

writingsonthewall

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Passing SQL Server traffic
« on: January 24, 2012, 08:46:59 PM »

I have a server with SQL Server 2008 on it.  It listens on the default ports 1433 & 1434.  But traffic is not making it through my DIR-655 to the LAN so that SQL Server can respond to the request.  I am using DynDNS and have confirmed that the traffic is getting thru DNS and finding the router, but after watching the syslog I can see that I'm getting multiple of the following error messages when a request is initiated from a client (Microsoft Access app) outside my network:

01-24-2012   22:28:24   System3.Info   192.168.1.1   Tue Jan 24 22:28:28 2012 D-Link Systems DIR-655 System Log: Blocked incoming TCP connection request from 67.167.87.109:53284 to 67.167.87.109:139
01-24-2012   22:28:24   System3.Info   192.168.1.1   Tue Jan 24 22:28:28 2012 D-Link Systems DIR-655 System Log: Blocked incoming TCP connection request from 67.167.87.109:53282 to 67.167.87.109:445


In Port Forwarding I have specified a rule to allow/pass port 1433 & 1434 TCP traffic to my internal server IP.

Also I'm confused by the ports shown above since I was expecting to see 1433/1434 in there...seems this is a factor in the traffic never getting to the SQL Server to process the request?

Thanks for any input on this.


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FurryNutz

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Re: Passing SQL Server traffic
« Reply #1 on: January 25, 2012, 07:47:50 AM »

Is Enable WAN Ping Respond On under Advanced/Networking?

What Hardware version is your router? Look at sticker under router.
What Firmware version is currently loaded? Found on routers web page under status.

What ISP Service do you have? Cable or DSL?
What ISP Modem do you have? Stand Alone or built in router?
What ISP Modem make and model do you have?
If this modem has a built in router, it's best to bridge the modem. Having 2 routers on the same line can cause connection problems.
To tell if the modem is bridged or not, look at the routers web page, Status/Device Info/Wan Section, if there is a 192.168.0.# address in the WAN IP address field, then the modem is not bridged.

Some things to try:
Ensure DNS IP addresses are being filled in under Setup/Internet/Manual? You can find these under Status/Device Info/Wan section.
Turn off ALL QoS (DIR only) GameFuel (DGL only and if ON.) options. Advanced/QoS or Gamefuel.
Turn off Advanced DNS Services if you have this option under Setup/Internet/Manual.
Turn on DNS Relay under Setup/Networking.
Setup DHCP reserved IP addresses for all devices on the router. Setup/Networking
Ensure devices are set to auto obtain an IP address.
Set Firewall settings to Endpoint Independent for TCP and UDP under Advanced/Firewall.
Enable uPnP and Multi-cast Streaming under Advanced/Networking.
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Cable: 1Gb/50Mb>NetGear CM1200>DIR-882>HP 24pt Gb Switch. COVR-1202/2202/3902,DIR-2660/80,3xDGL-4500s,DIR-LX1870,857,835,827,815,890L,880L,868L,836L,810L,685,657,3x655s,645,628,601,DNR-202L,DNS-345,DCS-933L,936L,960L and 8000LH.