[vpn-help] Connexion stated as established but no !

[Keys2It Laurent Richelle]

Hi Everyone,

just found the reason why ! But I'm totaly dazed about this.

I found that the 'NAT Traversal' option onto the gateway caused the problem !!! 
After disabling each option and restarting from scratch, I finally found that this option was the source of my problem.

This configuration has not been changed as it's the proposed one into de Support pages four our gateway. (Linksys RV042)

As I'm not a network specialist, could someone explain me the use of NAT Traversal and why suddenly this option put our network config totaly down.

Thanks for your expertise.

Laurent


> Date: Mon, 5 Jul 2010 21:16:45 -0500
> From: mgrooms at shrew.net
> To: keys2it at hotmail.com
> CC: vpn-help at lists.shrew.net
> Subject: Re: [vpn-help] Connexion stated as established but no !
> 
> On 7/4/2010 1:10 PM, Keys2It Laurent Richelle wrote:
> > Hi everyone,
> >
> > To be 100 % sure nothing goes wrong on VPN routeur, I recreated a full
> > new config.
> > Same problem occurs !
> > I join the traces files as asked.
> >
> 
> Hi Laurent,
> 
> I would appear that your gateway thinks phase1 is not being established 
> properly. It keeps re-transmitting the 2nd packet in the aggressive mode 
> exchange which is a three packet process. Its hard to tell why the 
> gateway is rejecting packets from the client by looking at the client 
> log output. Maybe it actually does think that phase1 is complete and is 
> choking on something in your phase2 packet. I'm really not sure.
> 
> -Matthew
> 
> >
> > Laurent Richelle
> >
> >  > Date: Fri, 2 Jul 2010 22:28:05 -0500
> >  > From: mgrooms at shrew.net
> >  > To: keys2it at hotmail.com
> >  > CC: vpn-help at lists.shrew.net
> >  > Subject: Re: [vpn-help] Connexion stated as established but no !
> >  >
> >  > On 7/2/2010 5:22 AM, Keys2It Laurent Richelle wrote:
> >  > > Hi everyone !
> >  > >
> >  > > VPN Client 2.1.5.
> >  > >
> >  > > Windows XP SP3 / VISTA / 7 (32 & 64)
> >  > >
> >  > > Routeur is a Linksys RV042.
> >  > >
> >  > > For 2 days now, we are unable to connect to our network.
> >  > > Absolutly no change occurs in configuration on both side. (From what we
> >  > > know) But something seems to be broken !!!
> >  > >
> >  > > The configuration have been made, based on excellent tutorial found in
> >  > > the support pages.
> >  > >
> >  > > The whole config worked fine on different machines for a while but for
> >  > > two days now as we try to connect
> >  > > the "Connect" view stated that the tunnel is enabled, but on the
> >  > > "network" view the Security Associations report Failed
> >  > > and the Tunnel section "Status" is reported as Connected !
> >  > >
> >  > > I'm not at all a network specialist, could you please point me where to
> >  > > look to resolve.
> >  > >
> >  >
> >  > Your using the client on XP SP3 / Vista / 7 ( 32 & 64 bit ) and they all
> >  > stopped working simultaneously? I would start by having a look at the
> >  > gateway. Maybe the client log output will tell you something?
> >  >
> >  > http://www.shrew.net/support/wiki/BugReportVpnWindows
> >  >
> >  > Honestly, if I was investigating this I would try to figure out what
> >  > changed on the VPN gateway.
> >  >
> >  > -Matthew
> >
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