Question

UDP Redirect

Asked by: WoodyJ007

Hi Guys,

I'm trying to write a program to redirect data sent on a UDP port to another address and port?

The UDP data is going to come from some hardware and the idea is that my software will sit in the middle and forward the data based on some kind of lookup so another port and destination.

Is this possible and is there and example anywhere.  Delph or VB.NET

Thanks
Woody

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Asked On
2007-08-21 at 00:25:15ID22776037
Tags

udp

,

redirect

Topics

Internet and Delphi Programming

,

Visual Basic Programming

Participating Experts
1
Points
500
Comments
3

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Answers

 

by: harris_cPosted on 2007-08-22 at 06:12:48ID: 19745746

Create a listener for that particular port.  If it receives data, send it to the appropriate address and port.

This is a sample chat program that demonstrates the use of winsock.
http://www.planet-source-code.com/vb/scripts/ShowCode.asp?txtCodeId=2253&lngWId=10

There is also a bare basic example on the msdn site but I forgot the link.

hec",)

 

by: WoodyJ007Posted on 2007-08-23 at 00:57:49ID: 19752254

I think I found a way to do it via Indy.  There is a UDP server component that has an OnUDPRead event.

The event passes a SocketHandle type that has a method called SentTo which wants an IP, Port and some bytes.

Hopefully | can use that but I haven't been able to test it yet.  Will let you know.

Thanks

 

by: harris_cPosted on 2007-09-26 at 01:39:40ID: 19961416

OK. Just update this on what you find out :)

Cheers

20120131-EE-VQP-002

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