On Fri, 2 Jan 2009, shivaprasad javali wrote: > Hi, > 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 255.255.255.255 . 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?
the normal address to use for broadcasts is nto 255.255.255.255, but the broadcast address of the particular network you are on. for example: if you are on 192.168.1.0 with a netmask of 255.255.255.0 the broadcast address would be 192.168.1.255 David Lang > Thanks > jbsp72 > > On Fri, Jan 2, 2009 at 1:30 PM, <da...@lang.hm> wrote: > >> On Fri, 2 Jan 2009, qu...@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 >> > _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel