Re: Re: Duplicated xAP messages

[Stuart Booth]

On Wed, 18 Feb 2004 07:34:19 -0000, "Paul Barrett"
<<a
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wrote:

>I just tried it out,
>and yes if I enable the two VMWare Ethernet adapters I have on my
machine I
>receive three copies of each message in the viewer. If I disable each
one in
>turn the duplicates decrease at the same rate.
>
>I found that the duplicates are also visible in the xAPConsole.

I just remembered we never resolved this. Looks like we may have a
solution, as James has just tested this out for me. So for anybody who
has noticed this, the following may be of interest.

Patrick suggested a while ago that "if the messages are sent out on
multiple interfaces, then you will see duplicates because a tcp/ip
broadcast cannot be filtered by network interface."

I just checked and sure enough xAPFramework is doing a simple
broadcast to 255.255.255.255, which will likely end up going out to
all interfaces.

So. There are a couple of things you can try to see if this helps the
problem. I built these into xFx yonks ago (ie when I started writing
it) but have never ever used them myself! If I need any further
optional configuration beyond these settings, I'll probably have to
add it in to future releases.

Taking Viewer as an example, although *ANY* xFx-based application will
accept these, edit the app's .config file and in the appSettings
section add:

<add key="xAPBroadcastIP" value="<your IP address
here>" />
<add key="xAPListeningIP" value="<your IP address
here>" />

And replace <your IP address here> with the IP address you want to
send and receive on, e.g:

<add key="xAPBroadcastIP" value="192.168.1.11" />
<add key="xAPListeningIP" value="192.168.1.11" />

This should resolve the problem of 'echoes' where multiple network
interfaces are present by specifying exactly which one you want to
use.

S
--
Stuart Booth <<a
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