[mc1322x] 6LowPAN data payload

[Daniel Berenguer]

OK, so should border-router wait for the prefix until tunslip6 is
started... ? This is not the case.

Daniel.


On 18 July 2010 00:52, Joakim Eriksson <joakime at sics.se> wrote:
> Hello Daniel,
>
> The prefix is for enabling autoconfiguration of a full IPv6 address
> (without hardcoding anything) for all nodes connecting to the network
> and to the border-router.
>
> the full IP is: <prefix>:<802.15.4 MAC address>.
>
> You will set the prefix if you start the tunslip6 program.
> (or you hard-code a prefix instead).
>
> Best regards,
> -- Joakim Eriksson, SICS
>
> Daniel Berenguer skrev 2010-07-18 00:45:
>>
>> Thanks Mar and George.
>>
>> I've finally tested udp-server on my first Econotag with udp-client on
>> my second Econotag and everything seems to work just fine. Then,
>> uploading border-router into the first Econotag (instead of
>> udp-server) disgraces the whole thing:
>>
>> slip_input_callback is never called after calling slip_send() from
>> request_prefix() in border-router.c
>> As result, border-router gets blocked in the "Request prefix" loop so
>> it will even never respond to a "global repair" button press.
>>
>> PROCESS_THREAD(border_router_process, ev, data)
>> {
>> ...
>>   /* Request prefix until it has been received */
>>   while(!prefix_set) {
>>     etimer_set(&et, CLOCK_SECOND);
>>     request_prefix();
>>     PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
>>   }
>> ...
>>
>> What is the purpose of "requesting the prefix" in border-router?
>> Sorry, I know this is an IPv6-related question but I've found very
>> little information in the net.
>>
>> Daniel.
>>
>>
>> On 15 July 2010 23:31, George Lu<lu at goodxense.com>  wrote:
>>>
>>>
>>> On Thu, Jul 15, 2010 at 2:22 PM, Mariano Alvira<mar at devl.org>  wrote:
>>>>
>>>> Do you guys know about the global repair button? Pressing S3, KBI0-4
>>>> button does "Initiating global repair", which should refresh the
>>>> routes etc...
>>>>
>>>
>>> I had tried the global repair button a while ago. Also had a modified
>>> rpl-border-router.c that would initiate global repair periodically. I
>>> didn't
>>> find it effective. But then that was before the big improvement that came
>>> with increasing NUM_PACKETS to 32.
>>> George
>>
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