[hipl-users] Re: Mobilty test
- From: Miika Komu <miika@xxxxxx>
- To: hipl-users@xxxxxxxxxxxxx
- Date: Tue, 28 Aug 2007 17:58:15 +0300 (EEST)
On Mon, 27 Aug 2007, Fco. Javier Melero wrote:
Hi,
so you have "sticky" default routes even without HIP? So when you move
your host between different networks, the old routes don't get deleted
automatically? Did I understand correctly?
Have you tried tuning the /proc/sys/net/ipv6/* variables?
If e.g. doing /proc/sys/net/ipv6/route/flush or something similar helps
during IPv6 handovers, we can surely add it to hipd code. Could you
experiment with the proc variable because I don't currently have multiple
radvd running here.
It seems like mobile ipv6 is also tuning the proc files:
http://gnist.org/~lars/doc/Mobile-IPv6-HOWTO/Mobile-IPv6-HOWTO.html#MIPv6
Thanks.
Hi Miika,
I'm sorry for taking so long. I've been a couple weeks off, but now I'm back
again (damn it!).
You are completely right. The old routes are what makes it fail in all
sceneries. I've sent you a file where you can see ip address and routing
tables, hipd log and traffic capture. And just to compare I've done the same
for mipl. As you could see mipl make addresses and routes management
automatically and so there´s no need for manual deletion. Do you think that
sort of management would be possible for hipl?
Greetings
Miika Komu escribió:
On Tue, 7 Aug 2007, Fco. Javier Melero wrote:
Hi,
sorry for the late response.
Hi Miika,
There are no IPv4 addresses involved at all. Right now I´m trying with
IPv6 only networks. Interfamily handovers would be a really interesting
feature but I´m not on it at the moment.
Samu Varjonen or Yaqub Kamran is going to implement interfamily handovers.
Some of the code is ready already.
Here there are two files attached: hipd debug log and a traffic capture on
the MN side. They had been taken while moving from network A to B. The
first HIP_UPDATE was triggered automatically as soon as the new ip was
available. It had the correct IPs but was sended through the old router,
so it fails. A few seconds later I deleted the old ip and that triggered a
new successful HIP_UPDATE.
This seems to a routing failure and hipd does not manage routing. Does the
route to the old router stick in your system after you move to the new
network? Please check this with "ip route -6" or "route -6".
--
=========================================================
Fco. Javier Melero de la Torre
Universidad Carlos III de Madrid
Servicio de Informática y Comunicaciones
Area de Seguridad y Comunicaciones
(https://asyc.uc3m.es)
e-mail: javier@xxxxxxxxxx
phone: (+34) 916.249.980, (+34) 918.561.341
fax: (+34) 916.249.430
=========================================================
--
Miika Komu http://www.iki.fi/miika/
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