Re: [Openvpn-users] Re: OpenVPN failing over GPRS [was: (no subject)]

[glynn taylor <gtaylor@xxxxxxxxxxxxxxx>]

Tom Monaco wrote:

> One of the users I support is having the same problem (I think). 
> Since the connection established fine, I just assumed that the
> software the GPRS card uses under Windows ignores changes to the
> routing table after the GPRS link is brought up.
>
> I'll be thrilled if it's just an MTU setting...but in that case, would
> not the GPRS interface just fragment them for you?
>
> -Tom
>
>
> On Sat, 26 Mar 2005 20:15:50 -0600, Charles Duffy <cduffy@xxxxxxxxxxx> wrote:
>  
>
> > On Sun, 27 Mar 2005 09:42:49 +0800, lilixinCQU wrote:
> >
> >    
> >
> > > HELP !
> > > I test openvpn V2  in ADSL ,all is ok. But when a client use GRPS,it's
> > > wrong.Can anyone give advice?
> > >      
> > Well, you're not really giving enough information for a useful diagnosis.
> > That said, I'd try tuning your MTU settings -- likely GPRS doesn't allow
> > very large UDP packets.
> >
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>
>  

Just to shine a ray of hope without adding anything to the technical side of this discussion: I use OpenVPN all the time over Verizon EVDO from Linux (Suse9.2Pro) and Windows XP Pro.  I did not make any MTU or other changes to get it to work.

gt

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