Active sync over Internet fails - sometimes?

Archived from groups: microsoft.public.pocketpc (More info?)

I have setup active sync and my firewall to allow me to run active sync over
the Internet back to my desktop however this only works when I connect my
PPC to the Internet thru a non-natted type of connection such as dial up. If
I use a public WiFi or even corp Wifi where the IP given to my PPC is a
private internal lan IP active sync fails or rather just hangs after
connecting. The only difference I can see between the two types of
connections is when I wifi I am being natted thus you have natting on both
ends of the connection vs. when you dialup your getting a fully routable IP
address with no natting on the PPC end.

Ideas? Solutions other than VPN?

Archived from groups: microsoft.public.pocketpc (More info?)

"CJ" <xyz@eatspam.com> wrote in message
news:42db9cec.968192@news1.telia.com...
> "James B" <nospam@here.com> wrote:
>
> >I have setup active sync and my firewall to allow me to run active sync
over
> >the Internet back to my desktop however this only works when I connect my
> >PPC to the Internet thru a non-natted type of connection such as dial up.
If
> >I use a public WiFi or even corp Wifi where the IP given to my PPC is a
> >private internal lan IP active sync fails or rather just hangs after
> >connecting. The only difference I can see between the two types of
> >connections is when I wifi I am being natted thus you have natting on
both
> >ends of the connection vs. when you dialup your getting a fully routable
IP
> >address with no natting on the PPC end.
> >
> >Ideas? Solutions other than VPN?
>
> You must have open ports in both ends for it to work.
>
> /CJ

ya think?

As stated via dialup on the PPC which would not be a natted connection
things work fine. Using a wifi be it public, private, etc I get connected
but then it hangs and the big difference would be your natted on both ends.
I've tested with wifi access points that I know do not filter any
connections with the same result.