[ale] UDP Broadcasts

[ecashin at noserose.net (Ed Cashin)]

It's Go, but I have a few examples in the "paxos" area of my go-getting
github repo:


https://github.com/ecashin/go-getting/blob/master/paxos/udptest-reciprocal.go

For the Linux half, maybe I'm reading too fast, but would tcpdump (can
display payloads) plus netcat (can send and receive arbitrary packets) do
the trick?



On Thu, Dec 12, 2013 at 12:55 AM, Alex Carver <agcarver+ale at acarver.net>wrote:

> Ok, a networking and a Linux question.
>
> First, does anyone have a reference (URL or source code) that shows how
> to receive UDP broadcast packets from multiple sending devices?  In
> other words, if I have two net devices each broadcasting UDP packets, I
> want to build a listener that will capture the packets from both devices
> (or more as I add devices).
>
> The Linux half of the question:  is there a quick CLI way of playing
> with UDP similar to utilities like tcpconnect?  I want to be able to
> examine the payloads before I dive into writing a C program although
> maybe writing the C program that just echos the payload is the way to go
> to figure out the base network stack.
> _______________________________________________
> Ale mailing list
> Ale at ale.org
> http://mail.ale.org/mailman/listinfo/ale
> See JOBS, ANNOUNCE and SCHOOLS lists at
> http://mail.ale.org/mailman/listinfo
>



-- 
  Ed Cashin <ecashin at noserose.net>
  http://noserose.net/e/
  http://www.coraid.com/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.ale.org/pipermail/ale/attachments/20131212/40152f64/attachment.html>