[Udpcast] simple working example?

[Alan McKay]

Hi folks,

Can someone give me a simple working example of what's required on 2 linux
boxes and the network switch in order to send files.  1 box is the sender
and the other the receiver.  I've never done anything with multicast
before.

I'm trying this in a sandbox.  I've got a Symbol ES 3000 PWR switch and
have IGMP snooping turned on.  Both linux boxen connected to the switch. 
I've been reading the help on the website but still cannot seem to send a
file.

THe basic operation does not work :

./udp-sender --file udp-sender
Udp-sender 2005-02-26
Using mcast address 49.152.135.239
UDP sender for udp-sender at 49.152.135.47 on eth0
Broadcasting control to 255.152.135.47
[waits here til I hit enter, then]
Starting transfer: 00000019
Transfer complete.

But on the other end udp-reciever is still just waiting :
udp-receiver --file udp-sender
Udp-receiver 2005-02-26
UDP receiver for udp-sender at 50.152.135.47 on eth1

Nothing.  When hit enter, still nothing.  When I ctrl-C the udp-sender
file is there but size zero.   Oh, I'm just trying to get it to send
itself as an example

I also try lots of the different tuning options including --nokbd,
--broadcast and more, and still cannot get anything to transfer.

Any idea what I'm doing wrong?

thanks,
-Alan

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