[support] tunnel deleted

[Romain KUNTZ]

Hi,

 From the logs, I'd guess that the MR sends a de-registration BU:

Thu May 28 15:51:15 mh_bu_parse: Binding Update Received
Thu May 28 15:51:15 ha_recv_bu_worker: BUI option, and HA is  
configured for MCoA.
Thu May 28 15:51:15 ha_recv_bu_worker: BID = 200, Priority = 10
Thu May 28 15:51:15 tunnel_mod: modifying tunnel 32 end points with  
from 2001:a:b:0:0:0:0:1000 to 2001:a:c:1:209:5bff:feb3:c5ab
Thu May 28 15:51:15 home_tnl_del: Deleting old default route in table  
254
Thu May 28 15:51:15 __tunnel_del: tunnel ip6tnl2 (32) from 2001:a:b: 
0:0:0:0:1000 to 2001:a:c:1:209:5bff:feb3:c5ab user count decreased to 0
Thu May 28 15:51:15 __tunnel_del: tunnel deleted

It looks like the very same issue your reported before (MR deregisters  
its CoA because of some RA misconfiguration on the foreign link).

Cheers,
romain


On 2009/05/28, at 23:06, Etienne Roudeix wrote:

> Hello all,
> I'm Shahriar's colleague,
> everything's now going good. tunnels are created and no problems  
> happened when running ordinary.
> But when i try to transfer datas from cn to lfn, using FTP, one of  
> the tunnel is deleted.
> I attached the logs of HA if any of you can help me, i would  
> appreciate
> Many thanks
> Etienne
>
> > From: kuntz at lsiit.u-strasbg.fr
> > To: shahriarou at yahoo.com
> > Date: Thu, 28 May 2009 11:36:20 +0200
> > CC: support at jules.nautilus6.org
> > Subject: Re: [support] tunnel deleted
> >
> > Hi Shahriar,
> >
> > The problem seems to come from your access router.
> > From the MR logs:
> >
> > Wed May 27 16:15:12 md_expire_router: expiring router
> > fe80:0:0:0:20e:cff:fed0:a217 on iface wlan1 (5)
> > [...]
> > Wed May 27 16:15:12 mh_send: local CoA 2001:a:c:1:209:5bff:feb3:c5ab
> > Wed May 27 16:15:12 mn_pol_ext_cleanup:
> > Wed May 27 16:15:12 __tunnel_del: tunnel ip6tnl1 (97) from 2001:a:c:
> > 1:209:5bff:feb3:c5ab to 2001:a:b:0:0:0:0:1000 user count decreased  
> to 0
> > Wed May 27 16:15:12 __tunnel_del: tunnel deleted
> > Wed May 27 16:15:12 bul_delete: Deleting bule
> >
> > Your MR thinks the access router is not reachable anymore, and thus
> > send a de-registration BU.
> > What is the lifetime of your RA sent by the access router? How
> > frequently do you send RA on the link?
> >
> > A bit later, the MR re-registers to its HA (I guess it received a RA
> > from the AR) :
> >
> > Wed May 27 16:15:14 md_update_router_stats: add coa 2001:a:c:
> > 1:209:5bff:feb3:c5ab on interface (5)
> > [...]
> > Wed May 27 16:15:14 process_first_home_bu: New bule for HA
> >
> >
> > This is why your MR keeps registering/deregistering with the HA. I
> > guess you have some misconfiguration with your RA from the access
> > router.
> >
> > Cheers,
> > romain
> >
> >
> > On 2009/05/28, at 1:41, Abu Zafar Shahriar wrote:
> >
> > > Thanks all.
> > >
> > > Captures and log files are attached. What I found that HA  
> reaceives
> > > BU sent from 2nd Interface of MR, and creates BE. But BE is not  
> kept
> > > till its lifetime (deleted after 3/4/5 seconds where lifetime is  
> 60
> > > secs.).
> > >
> > > BU/BACK capture files are sent in different email in compressed
> > > format but awaiting moderator decision because of its size.
> > >
> > > --Shahriar
> > >
> > > --- On Wed, 5/27/09, Romain KUNTZ <kuntz at lsiit.u-strasbg.fr>  
> wrote:
> > >
> > > From: Romain KUNTZ <kuntz at lsiit.u-strasbg.fr>
> > > Subject: Re: [support] tunnel deleted
> > > To: "Abu Zafar Shahriar" <shahriarou at yahoo.com>
> > > Cc: support at jules.nautilus6.org
> > > Date: Wednesday, May 27, 2009, 7:25 AM
> > >
> > > Hi,
> > >
> > > From the log we can see that the tunnel is alternatively created
> > > then deleted, but the deletion is always triggered by a BU from  
> the
> > > MR.
> > >
> > > Does your BU sends for some reason a de-registration BU? Could you
> > > send the MR logs too? And, if possible, a wireshark dump of the  
> BU/
> > > BA exchange between the MR and the HA?
> > >
> > > Regards,
> > > romain
> > >
> > > On 2009/05/27, at 2:30, Abu Zafar Shahriar wrote:
> > >
> > > > Hi all,
> > > >
> > > > In our MCoA tesbed, one of the BE (among the two for two
> > > interfaces) in HA is deleted before its lifetime expires (says  
> user
> > > count reach 0). Also, BU from one of the CoA is delayed till the
> > > tunnel is deleted.
> > > >
> > > > Can anyone help me in this regard (I mean whats going on)? I
> > > attach the log of HA with this mail.
> > > >
> > > > Thanks.
> > > >
> > > > --Shahriar
> > > >
> > > > <ha_log>_______________________________________________
> > > > Support mailing list
> > > > Support at ml.nautilus6.org
> > > > http://ml.nautilus6.org/mailman/listinfo/support
> > >
> > >
> > > <BC_HA><ha_log><MR_log.log>
> >
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