[Udpcast] simple working example?

[D Teed]

What is your netmask?  It looks to me like these two machines
are probably not in the same subnet.

In a typical setup, if you had a network on 192.168.0.*
with a netmask of 255.255.255.0, it would broadcast/multicast
to all of the machines between 192.168.0.1 to 192.168.0.254
A machine at 192.168.1.1 would not see a packet.

--Donald Teed


On Tue, 4 Oct 2005, Alan McKay wrote:

> 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
>
> --
> http://www.bodensatz.com/
> The Beer Site™
>
>
>
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