Active sync and the Internet

I posted the following question elsewhere, and was advised to post any future
stuff here.
Unfortunately, the link that Svyatoslav gave me didn't answer my question.
The question is specifically about ports open to the Internet when using
active sync to sync my PPCto my PC via USB.


I am running WinXPSP2 and ActiveSync 3.7.7 along with Zone Alarm Pro and a
dialup broadband Internet service.
I have no problems synching my PPC with my PC via my USB port, but am
somewhat concerned that when Active sync is running it requests, via ZA,
internet access and internet server rights. The sync will not work unless I
grant these.

ZA then indicates that ‘ApplicationLayer Gateway Service’ and ‘Connection
Manager’ are listening to a shedfull of ports including 990, 1026, 5679 and
7438. Now this is fine and dandy (I don’t care a fig) if I am not connected
to the Internet. (I assume that I am not unless I connect to my ISP even
though my modem is connected to somewhere at 1.1Mbps) but when I am, a quick
trip to grc.com confirms that the ports are open and presumably just sitting
there waiting for a friendly drive by port scanner to reveal all my secrets
to the wide world of hackers.
I am unable to find any options to switch off the Internet bit of active
sync, even though it’s obviously not needed to sync my PPC.
Can someone please shed some light on
a. Whats going on
b. How can I stop it going on

TIA Trevor



Please refer to Configuring ZoneAlarm with ActiveSync by Raj Pillai, a Mobil
Devices MVP - http://www.cewindows.net/raj/ZA.html

The right newsgroup to ask more questions would be
microsoft.public.pocketpc.activesync

HTH

--
Svyatoslav Pidgorny, MS MVP - Security, MCSE
-= F1 is the key =-
.

Relevant Pages

  • Re: Active sync and the Internet
    ... I have disabled ethernet sync. ... Connection manager blocked from listening to ports TCP 999,1026,5679,7438 ... > Do you Have ethernet sync enabled in Activesync? ... >> dialup broadband Internet service. ...
    (microsoft.public.pocketpc.activesync)
  • Re: Active Synce
    ... you don't need those ports. ... OTA Activesync only requires 443, so leaving all those open are holes in your security you don’t' need. ... Secondly, when you get a sync error on a phone, it always has that link for "more details." ... Don't know why their phones don't sync any more. ...
    (microsoft.public.windows.server.sbs)
  • Re: Active sync and the Internet
    ... maybe it used as a part of the passthough internet conenction? ... > I have disabled ethernet sync. ... > Connection manager blocked from listening to ports TCP 999,1026,5679,7438 ... >> Do you Have ethernet sync enabled in Activesync? ...
    (microsoft.public.pocketpc.activesync)
  • Re: ActiveSync 4 download from Microsofts site
    ... Check to see that your desktop ActiveSync is set correctly. ... your PC can connect to the internet without a proxy. ... I do Sync ...
    (microsoft.public.pocketpc.activesync)
  • Re: Doesnt work in Cradle. Repeated conversation.
    ... ActiveSync connection between "automatic" and internet? ... Sinc your device won't sync in the cradle with the fqdn, ... It will only sync in the cradle if the server name is the Netbios name. ...
    (microsoft.public.pocketpc.activesync)
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