UDP broadcast from an XO

david at lang.hm david at lang.hm
Fri Jan 2 03:00:48 EST 2009


On Fri, 2 Jan 2009, quozl at laptop.org wrote:

> Visibility in Neighbourhood View is determined by access from the XO to
> the Jabber server.  The Jabber server does not relay these UDP packets
> for you.  Therefore visibility is not an indicator of ability to operate
> over UDP.
>
> A wireless router will relay the UDP packets.  The relay is being done
> by the router itself, and so any XO not associated with the router may
> not receive the UDP packets unless the packets are forwarded by the
> router to whatever router the other XO is associated with.
>
> Can you show me one of these UDP packets?

remember that broadcast packets don't generally go through routers (they 
go through bridges, but not routers)

so if the two XO's are on different subnets, broadcasts won't be seen by 
the other one.

David Lang


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