[cisco-bba] VPDN session stuck in wiccn state ?

Thu Mar 26 19:54:49 EDT 2009

Hi Raghu,

Yes we are using lcp renegotiation in the VPDN config (see below).

vpdn-group <Provider_Name>
 accept-dialin
  protocol l2tp
  virtual-template 2
 terminate-from hostname <Provider_Name>
 source-ip 203.17.x.x
 lcp renegotiation on-mismatch
 l2tp tunnel password <password>
 l2tp tunnel receive-window 100
 l2tp tunnel retransmit timeout min 2

This is the same VPDN config we use for a few other Providers which we
aren't seeing the same problem with.

--

Regards,

Andy Saykao
Systems Administrator
Netspace Online Systems Pty Ltd
Phone : 03 9811 0049
Mobile : 0401 422 406
Fax     : 03 9811 0044
E-Mail : andy.saykao at staff.netspace.net.au
<blocked::mailto:andy.saykao at staff.netspace.net.au> 

________________________________

From: raghuram chary [mailto:raghujindia at gmail.com] 
Sent: Thursday, 26 March 2009 8:05 PM
To: Andy Saykao
Cc: cisco-bba at puck.nether.net; Tony
Subject: Re: [cisco-bba] VPDN session stuck in wiccn state ?

Hi Andy,
WICCN is  a WAIT ICCN  state ,its one of the state in l2tp negotiations.
Have you tried configuring lcp renegotiation ?
Which router are you using?
As you have shifted to more power LNS,I believe there is a configuration
problem.

Thanks
Raghu
SAVE TREES..GO GREEN

On Thu, Mar 26, 2009 at 7:13 AM, Tony <td_miles at yahoo.com> wrote:

	No problems, althought I don't think I actually helped any.

	I'd appreciate if you could let us (list) know what the solution
is when you get it sorted.

	Thanks,

	Tony.

	--- On Thu, 26/3/09, Andy Saykao
<andy.saykao at staff.netspace.net.au> wrote:

	> From: Andy Saykao <andy.saykao at staff.netspace.net.au>
	> Subject: RE: [cisco-bba] VPDN session stuck in wiccn  state ?
	> To: "Tony" <td_miles at yahoo.com>, cisco-bba at puck.nether.net

	> Date: Thursday, 26 March, 2009, 12:24 PM

	> Much appreciate your help Tony.
	>
	> Not sure if it's from all their LAC's or a subset, but will
	> keep this in
	> mind.
	>
	> Thanks.
	>
	>
	> --
	>
	> Regards,
	>
	> Andy Saykao
	> Systems Administrator
	> Netspace Online Systems Pty Ltd
	> Phone : 03 9811 0049
	> Mobile : 0401 422 406
	> Fax     : 03 9811 0044
	> E-Mail : andy.saykao at staff.netspace.net.au
	>
	> -----Original Message-----
	> From: Tony [mailto:td_miles at yahoo.com]
	>
	> Sent: Thursday, 26 March 2009 12:18 PM
	> To: cisco-bba at puck.nether.net;
	> Andy Saykao
	> Subject: RE: [cisco-bba] VPDN session stuck in wiccn state
	> ?
	>
	>
	> Hi Andy,
	>
	> I've pretty much out of ideas now then, sorry :(
	>
	> If you've opened a case with TAC, you may just have to wait
	> for them to
	> sort it out with you. I would press them to find out what
	> that state of
	> "wiccn" means.. If it's not a valid state, then it's coming
	> from within
	> the IOS code somewhere and they should be able to trace it
	> and find
	> where. Keep requesting escalations on your case until it
	> gets to someone
	> who knows/cares.
	>
	> You could try downgrading to a different IOS, unless you
	> definitely need
	> something in the special release you are using to make it
	> work.
	>
	> If it's only tunnels from one provider, is it from all of
	> their LAC, or
	> a subset of their LAC ?
	>
	>
	> regards,
	> Tony.
	>
	>
	>
	> --- On Thu, 26/3/09, Andy Saykao
<andy.saykao at staff.netspace.net.au>
	> wrote:
	>
	> > From: Andy Saykao <andy.saykao at staff.netspace.net.au>
	> > Subject: RE: [cisco-bba] VPDN session stuck in
	> wiccn  state ?
	> > To: "Tony" <td_miles at yahoo.com>,
	> cisco-bba at puck.nether.net
	> > Date: Thursday, 26 March, 2009, 11:56 AM
	> >
	> > Hi Tony,
	> >
	> > Thank you for your reply.
	> >
	> > > One thing I can see from your output is that all
	> of
	> > the sessions with
	> > this state are on the same tunnel (TunID: 21116). Do
	> you have any
	> > other sessions that are working on this same tunnel ?
	> >
	> > Yes there are valid sessions on the tunnel.
	> >
	> > > Is it happening across all of your LNS, or just
	> one ?
	> > When you
	> > upgraded did you change IOS ? What IOS version are you
	> running ? Have
	> > you tried a different IOS ? Does a reboot fix the
	> problem ?
	> >
	> > It's happening across all of our LNS's. We've been
	> working extensively
	>
	> > with Cisco to get these LNS's up and running and using
	> a special
	> > engineering release from the 12.2(33) train. No, we
	> have not tried a
	> > different IOS given that we've been working with Cisco
	> on getting this
	>
	> > far already.
	> >
	> > A reboot fixes the problem temporarily but when we
	> arrive the next
	> > day, there's a whole bunch of sessions waiting for us
	> stuck in this
	> > "wiccn"
	> > state.
	> >
	> > > Did the LAC provider ("T" or "O" ?) have to
	> change
	> > anything on their
	> > > end as part of the changes ? They will always say
	> that
	> > everything is
	> > > ok, doesn't mean it is :)
	> >
	> > We terminate a few tunnels from a variety of Service
	> Providers on
	> > these LNS's and are currently only having issues with
	> one provider
	> > where we encounter this problem.
	> >
	> > Cheers.
	> >
	> > Andy
	> >
	>
	>
	>
	>
	>
	>
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-- 
Thanks
Raghu

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