OpenWrt Forum Archive

Topic: udp to tcp

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Post #1
hms
14 Nov 2011, 16:23

Hello

Is it possible to forward all data sent to UDP port 3000 to internal TCP port 1515?

Janis

update

I'll be more specific - there is ATMEL microprocessor connected to the serial link of WRT54GL router.
Sert2net is configured to TCP 1515. When I telnet from my mac to the router TCP 1515 I can send commands and everything works.
Then iPad have OSC software where sliders and buttons can send commands using OSC protocol (text commands via UDP).

I can not get data from iPad to ATMEL because OSC is UDP and sert2net is TCP !!! Any advice?

- Can I change sert2net to work with UDP, not TCP?
- Can I bridge UDP stream and TCP port?

(Last edited by hms on 14 Nov 2011, 18:10)

Post #2
jow
14 Nov 2011, 16:59

No not possible with standard iptables.

Post #3
ecc
14 Nov 2011, 18:07

It should be possible with "netcat -u" piped to netcat, but I haven't tried it.

Post #4
hms
14 Nov 2011, 18:50

Ecc! Thank' s a millon!!!

netcat -u -l -p3000 | netcat  127.0.0.1 1515 is working like charm!

Everything is possible smile

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