[145053] in North American Network Operators' Group
Re: Sprint 3G/4G PPTP VPN connectivity
daemon@ATHENA.MIT.EDU (Cameron Byrne)
Mon Sep 26 13:34:39 2011
In-Reply-To: <4E80B69F.4050803@rollernet.us>
Date: Mon, 26 Sep 2011 10:33:35 -0700
From: Cameron Byrne <cb.list6@gmail.com>
To: Seth Mattinen <sethm@rollernet.us>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Mon, Sep 26, 2011 at 10:30 AM, Seth Mattinen <sethm@rollernet.us> wrote:
> On 9/26/11 8:36 AM, Drew Weaver wrote:
>> Has anyone been able to pull any magic off that allows PPTP connectivity over sprint's 3G/4G wireless network?
>>
>> I assume they're just filtering it flat out, but before I contact them I wanted to see if anyone has found a resolution on their own.
>>
>> I have several Nexus S 4G devices which are unable to get PPTP connections over 3G/4G but if you enable WIFI it comes up instantly.
>>
>> I've been researching this off and on all weekend but wondered if anyone else had run into this issue.
>>
>
>
> I use often use PPTP on my original HTC EVO. Just tested it now and it
> worked. 3G only, no 4G in my city.
>
I have seen MTU issues with PPTP on cellular networks before with
Android. You might want to try clamping the MTU down on the server
side.
Cameron
