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Custom Installers' Lounge Forum - View Post
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forwarding TCP port to UDP port
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| Topic: | forwarding TCP port to UDP port This thread has 5 replies. Displaying all posts. |
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| Post 1 made on Monday October 27, 2014 at 15:36 |
Fiasco Senior Member |
Joined:
Posts: | July 2009
1,282 |
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Possible in a router (have a cisco rv024g)?
I'm using netcat to do it on my Talon DVR (forward incoming TCP port 5000-5004 to UDP ports 5000-5004) for POS text insertion.
Was just wondering if it was possible to do it within the router instead of having netcat running on the DVR.
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| OP | Post 2 made on Saturday December 13, 2014 at 22:29 |
Fiasco Senior Member |
Joined:
Posts: | July 2009
1,282 |
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Ended up using a program called socat. Netcat spawned a new process on every connection and Socat only spawns a process for each port you want forwarded.
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| OP | Post 3 made on Saturday December 13, 2014 at 22:41 |
Fiasco Senior Member |
Joined:
Posts: | July 2009
1,282 |
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My socat command lines (if anyones interested). These are in a (*.bat) windows batch file which is executed at startup.
start /B c:\users\dvruser\desktop\socat\socat.exe TCP-LISTEN:5001,fork UDP:192.168.1.20:5150
start /B c:\users\dvruser\desktop\socat\socat.exe TCP-LISTEN:5002,fork UDP:192.168.1.20:5151
start /B c:\users\dvruser\desktop\socat\socat.exe TCP-LISTEN:5003,fork UDP:192.168.1.20:5152
start /B c:\users\dvruser\desktop\socat\socat.exe TCP-LISTEN:5004,fork UDP:192.168.1.20:5153
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| Post 4 made on Saturday December 13, 2014 at 23:22 |
Daniel Tonks Wrangler of Remotes |
Joined:
Posts: | October 1998
28,780 |
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I remember researching this when you made your original post - unfortunately it doesn't seem to be a common function for a router to allow. Mine offers quite a bit of flexibility, and it *almost* allowed me to make this configuration - but then threw an error at trying to change the port type.
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| Post 5 made on Sunday December 14, 2014 at 09:59 |
fcwilt Senior Member |
Joined:
Posts: | September 2003
1,283 |
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Since TCP and UDP are different protocols simple port forward isn't going to work - you need something to try and convert TCP to UDP.
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Regards, Frederick C. Wilt |
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| Post 6 made on Sunday December 14, 2014 at 11:50 |
BigPapa Super Member |
Joined:
Posts: | October 2005
3,139 |
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Many routers have a BOTH function on TCP UDP.
You may also be able to try port triggering to create a rule to flip it.
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