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Kerio 7.0 doesn't allow port 843 [message #126746]

Wed, 30 December 2015 05:44

ferntip
Messages: 2
Registered: December 2015

Hi all,

We are running a flash game which runs on socket connection port 843 on a remote server. Now Im unable to connect to that flash mode of that game. Actually the game doesn't load. I have tried different traffic policy but it is not working. we are using signalr method for the flash video.

When I tried connecting without kerio firewall... the game loads perfectly fine. I know that kerio blocks incoming connection but unable to sort out the issue.

Please find attached image for log (http) from kerio

Attachment: Kerio port 843 connecting issue.png
(Size: 17.62KB, Downloaded 453 times)

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Re: Kerio 7.0 doesn't allow port 843 [message #126748 is a reply to message #126746]

Wed, 30 December 2015 10:24

Petr Dobry (Kerio)
Messages: 405
Registered: November 2003

Kerio Technologies

We would have to see your traffic rules. Without that it's just guessing.
It's possible that your game use HTTP protocol on port 843, but sends binary data there (we have seen that in real world even though it's against RFC).

You can try to create a dedicated traffic rule for your flash game and disable protocol inspectors for that rule (only NAT will be enabled). That might help.

Petr Dobry
Product Development Manager | Kerio

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Re: Kerio 7.0 doesn't allow port 843 [message #126751 is a reply to message #126748]

Wed, 30 December 2015 11:29

ferntip
Messages: 2
Registered: December 2015

Hi Petr,

Please find attached my traffic rules... As you said I have added new rule which is at the top but still it is not working

Attachment: traffic rule - kerio.png
(Size: 35.06KB, Downloaded 469 times)

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Re: Kerio 7.0 doesn't allow port 843 [message #126752 is a reply to message #126751]

Wed, 30 December 2015 11:42

Petr Dobry (Kerio)
Messages: 405
Registered: November 2003

Kerio Technologies

Your traffic rule makes no sense, unless the game is hosted on the firewall itself. You need to enable NAT or MAP, depending on where the game is located.

Petr Dobry
Product Development Manager | Kerio

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