UDP broadcast from an XO

shivaprasad javali jbsp72 at gmail.com
Fri Jan 2 07:55:59 EST 2009

   Is there any way I can ask the OLPC to broadcast the UDP packets. I am
broadcasting the UDP packets by writing to the UDP port and setting the
destination address to . I am using ports 61556 and 61557
for communication. So if the antenna of the OLPC ( and hence its wireless
connectivity) is functional wont it broadcast the UDP packets it receives
for broadcast?


On Fri, Jan 2, 2009 at 1:30 PM, <david at lang.hm> wrote:

> 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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