Re: VPN Problems

Further problems.

I thought the issue was cured when I upgraded the firmware of the Linksys
but, whilst the VPN would connect fine, it would send packets like a good
'un but would only receive them extremely slowly - not fast enough to get
any data.

I went along to the customer and removed the Linksys - SBS2003 is now the
DHCP server too. Still the same problem with the VPN though - sends fine but
receives terrible.

The remote computer VPN's happily into another SBS2003 that I administer and
every other PC that I have tried to connect has the same problem.

So, the problem seems to be on the server. Where should I go from here?


On 2/15/06 10:28 AM, in article C018B2B9.2155%dave@xxxxxxxxxxxxxxxxxxxxx,
"Dave Hambly" <dave@xxxxxxxxxxxxxxxxxxxxx> wrote:

Sorted.

Because I am too lazy to leave my seat (!) I remotely upgraded the firmware
on the Linksys router and everything works now.

Thanks again for all of your help and support.


On 2/15/06 9:19 AM, in article u7WyMQlMGHA.3408@xxxxxxxxxxxxxxxxxxxx, "Dave
Nickason [SBS MVP]" <gwdibble@xxxxxxxxxxxxxxxxxxxxxx> wrote:

If GRE is enabled on the Linksys, you should not have to remove it.
However, the more basic Linksys routers will allow only a small number of
simultaneous VPN connections - one or two IIRC. I would always let the SBS
do DHCP - I think it's better for a variety of reasons, not the least of
which is that it's closer to a "default" SBS install and may be more
trouble-free for that reason. Either way, you could remove it as a test to
see if it's involved. I used a very basic Linksys for a while and never had
a problem, though, so I suspect it's not that.

Have you run the Configure Remote Access wizard from the Internet and E-Mail
page of the SBS console? That should at least verify the appropriate
settings on the server. Read the last screen of the wizard for some good
information about configuration.


"Dave Hambly" <dave@xxxxxxxxxxxxxxxxxxxxx> wrote in message
news:C0189BF8.213C%dave@xxxxxxxxxxxxxxxxxxxxxxxx
Thanks for your advice Dave. There is a router in front of the SBS and the
PPTP Pass through WAS enabled. PPTP was NOT enabled at the remote router
but
is now.

Still getting the same issue though. When viewing the router incoming log
at
the server end, I see the connection my remote computer is making to port
1723. Using Linksys routers at each end.

I wonder if I should consider doing away with the router and using the
DHCP
on the SBS 2003? Everything else works correctly on the server, RWW,
exchange, etc.


On 2/15/06 8:10 AM, in article uJhPgpkMGHA.668@xxxxxxxxxxxxxxxxxxxx, "Dave
Nickason [SBS MVP]" <gwdibble@xxxxxxxxxxxxxxxxxxxxxx> wrote:

Do you have a router ahead of your SBS? There'll be a setting in the
router
configuration that refers to "GRE," "GRE47," or something like "PPTP
Pass-through." GRE47 is a protocol that needs to be enabled on the
router
in order for PPTP VPN to work. (BTW, it's not a port, and opening port
47
will not help).

There's been some discussion about whether GRE47 has to be enabled at the
remote end. I can see why it would have to be, but I don't honestly know
how it's set on my home router - whatever the mfr's default. I'd try
enabling it on your end, where it for sure needs to be enabled, and if
you
get the same error, try enabling it on the remote router as well.

If you're getting the message I'm thinking you're getting, it's not for
sure
that problem - the message just indicates that as a possible cause. So
if
you enable GRE47 and it still doesn't work, please post back with more
details of your networking configuration.


"Dave Hambly" <dave@xxxxxxxxxxxxxxxxxxxxx> wrote in message
news:C0188F26.2123%dave@xxxxxxxxxxxxxxxxxxxxxxxx
When trying to connect the remote computer just times out waiting for
the
password to be verified.

On the SBS 2003, the event viewer comes up with a RASMAN error - The
connection between the VPN Server and the VPN Client has been
established
but the VPN cannot be established. Event ID 20209.

It then goes on to talk about Generic Routing Encapsulation - GRE's.
This
is
the point where I get confused! Not that it takes much to get me
confused....

What's the best next step please?

Thanks again for all of your help.








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