My carrier has a cheap gprs data plan with unlimited e-mail access but only 10Mb for internet usage. Since it doesn't specify any exchange server to use, my guess is that the traffic is differentiated based on the port (anyone thinks there's another way?), so I immediatly thought about using openvpn in the same port and have cheap unlimited internet access on my pda. The problem is that I can't find any info on the push-mail protocol. Can anyone tell me what port is uses so that I can try it out?
SSL
paulo_andre said:
My carrier has a cheap gprs data plan with unlimited e-mail access but only 10Mb for internet usage. Since it doesn't specify any exchange server to use, my guess is that the traffic is differentiated based on the port (anyone thinks there's another way?), so I immediatly thought about using openvpn in the same port and have cheap unlimited internet access on my pda. The problem is that I can't find any info on the push-mail protocol. Can anyone tell me what port is uses so that I can try it out?
Click to expand...
Click to collapse
ActiveSync uses SSL to connect to the Exchange server, and port 443 is all you need, even with push email. The push email setting only works with ActiveSync, which only does Outlook.
Related
I'm trying to VPN using GPRS to several networks which I have access to but I can't seem to be able to VPN them with my PDA2K. I can VPN them easily with no special configuration with my XP.
My i-mate keeps trying "Connectioning XX VPN..." and then aborts after about half a minute saying to check the username and password. The username and password are correct.
I called my cellular provider and they said that I should be able to connect to a VPN only if 'UDP Encapsulation' is defined on the VPN server?!?!? Well.. What is this thing? I'm trying to connect to big corp VPN, they wouldn't even listen to 'special requests'. I tried to connect to 4 different VPNs and I could not connect to any single one of them!
I really need that VPN connection via GPRS with my PDA2K. Any help would be more than appreciated. Maybe a different client than the built in VPN client of the WM2003SE ?
Thanks in advance.
Sorci
anyone?
bump for help. this gotta be a common prob.
Your GPRS connection will be subject to some form of NAT (Network Adress Translation) through your provider. VPNs don't get along well with NAT as the firewall doing the address translation modifies the packet header after it has had it's hash value calculated by the client (in this case your PDA). The receiving firewall will reject the packet as the hash values for the (now modified) packet don't match.
UDP encapsulation gets around this by encapsulating the encrypted and authenticated (secure) packet in a UDP packet which will be happily modified by the NAT'ing firewall. The receiving firewall will decapsulate(is that even a word?) the UDP packet and process secure packet inside as normal.
James
Thanks a lot Jamz for the thorough detailed info. I appreciate it.
So what's the fix? I tried several other VPNs and was unable to access them as well.. I can't just call all these providers and make some strange requests for a 'one guy with a pda2k and a gprs connection' that wants them to change their VPNs, enabling or disabling protocols or port.
Any other solution?
sorci said:
Any other solution?
Click to expand...
Click to collapse
Are you sure you're using the built-in VPN client in Windows, and not something like a Cisco VPN client?
You could try something like the Movian VPN client (not sure this is still made). I've used this previously with a Cisco VPN and it is fully configurable to handle multiple VPN types.
I've got a similar problem. Am trying to set up a temporary GPRS connection into my work LAN (I work for myself but 2nd child due shortly so want to be able to connect in from home for a couple of weeks only). I've got MS Win2000 Server set up to accept incoming VPN connections and it works fine on a dial-up connection but refuses to authenticate my username/pasword whenever I try to get the GPRS working.
As it's only going to be used for a short period of time, I'm loathe to spend out on any specific hardware/software but if anyone's got any suggestions, I'd be grateful.
If it helps, the LAN is behind a Netgear DG834GT ADSL modem/router/firewall and VPN PPTP and IPSEC are allowing in and out on it. The server is on a static IP address in the range 192.168.99.x.
GPRS Connections and VPN
With O2 you have to aks for VON connectivity to be enabled and connect to vpn.o2.co.uk instead of mobile.o2.co.uk. (by the way you can't access the web whilst connected to the vpn.o2.co.uk AP)
I suspect that most providers have simalair requirements
Dave
What are you guys using to connect to the internet? I can do everything I want with T-zones unlimited, using the proxy... however, if I use the proxy, I can't connect to wi-fi because it wants to try to connect thru the proxy. What services are you using and what are your settings?
Thanks,
Danny
i will use
I wont get my MDA till monday according to UPS, but when i get it i plan on getting the Total Internet plan for 29.99. it includes GPRS, EDGE and Hot Spots. That is the plan the tmobile is advertizing with this phone.
I have the T-Mobile total internet package. I am not using the proxy server, and it connects to Hotspot just great.
However, I have not tried to access T-Zones. Well, I tried once, and got a network solutions 'page coming soon' thing. I doubt I have it correct. lol
hot spot
how does the hot spot autentication work?
im assuming they made it so i wouldnt be able to just put in my username and password on my laptop and log it into a hotspot.
I have unlimited internet 19$ plan.
I don't use any proxy server.
I don't think you can use the regular t-zone on this phone ($9 plan).
Otherwise all good, just use: internet2.voicestream.com in the gprs setup and the rest emty.
my 5.99 tmobileweb with proxy works very well with any website using internet explorer mobile. it doesn't work, however, with outlook or any other mail client or application that doesn't know how to use proxy. i'm glad that virtual earth 1.5 works well even with my tmobileweb plan.
as for the problem that the original poster described, in the connection settings, i created a connection especially for wifi. and to switch between wifi and tmobileweb, i go to 'select networks' and choose which ever connection i want in the two drop-down lists that i have.
Proxy Setup
msafi,
What are the settings for setting up the proxy? I used the proxy with my Nokia 6600 just fine, but, cannot get it to work on the MDA Wizard.
Thanks, SK
MS Activesync (i'm using 4.5) does not support forwarding of UDP packets to the handset from the network. So far as I can tell it doesnt allow them to come out of the handset to the network either. When I say Network I mean IP Network, not Cellular.
Does anyone know of a way to add this feature to my setup, perhaps a UDP Proxy application that will puck up the packets on the ActiveSync Network adapter and forward them to the internet ? Or maybe something simpler like bypassing Activesync altogether ?
Hopeful,
nid
Are you trying to run any application specially using UDP's? I could access Internet once my ActiveSync is up.
Uh, yes, UDP is requred by the application I am trying to run.
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=605596&SiteID=1
First of all congratulations to all users for this excellent forum.
Here's the situation:
In my country one specific carrier provider has a data plan with only 3,5 euros/month which offer unlimited browsing to internet (port 80 i assume) and unlimited downloads with the restriction that the file youre downloading does not exceed 1 MB.
The point in this story is that you cant work with applications that works in other port than the ports that they have open (eg voip).
They also have a proxy server to set up on your mobile device which is at 192.168.200.10 at port 9401.
The obvious question is if theres a possibility to establish a vpn connection between my mobile and a home server in order to "pass" all the traffic through their 9401 port so to conclude to use this service as truly unlimited (i mean "port free")?!?
Can anybody suggest the necessary software (vpn etc) to set up in both machines to give it a try? What kind of configuration is required in the vpn software you will suggest?Is there a point that i am missing?
My mobile device is an htc touch diamond.
Thank you!!
Hi folks,
First post here, I've had my G2 (Hero) for nearly a week and think it's amazing, but I have encountered a problem.
My Hotmail sends and receives just fine whether I am connected by WiFi or 3G, but my pop3 email will send and receive if I'm on WiFi but it will only
receive if I'm out and about on 3G. It's a bloody nuisance and I can't
think of any reason that would be the case.
Has anyone else found this?
Cheers!
V.
It seems like the SMTP server that you're using is not accessible using the 3G network. ISPs commonly block access to their SMTP servers from other networks. E.g., if my regular ISP is ISPA (to which I connect using WiFi) and my mobile operator is ISPB (to which I connect using 3G), I cannot access ISPA's SMTP server when I am connected through ISPB and vice versa.
The most likely cause of your problem is that your POP provider's SMTP-server doesn't accept message relaying from the addresses your phone is assigned when connecting over the phone network. Many providers permit unauthenticated relaying from addresses in their own network. In that case, make sure that the outgoing server (SMTP) for your POP-account is configured with authentication (username/password). Encryption (TLS or SSL) is also recommended. If that isn't enough, contact your POP-provider and ask if they at least can enable global access to authenticated relaying over SSL (port 465) or authenticated SMTP relaying in general.
Ah, I wonder if this is what the girl in the T-Mobile shop was going on about when she asked if I wanted to pay another £5 a month for email? Perhaps they have, as you have suggested nerfed the email capability over 3G. That would be a proper nuisance, I've not had a network do that to me before
Seems a bit of a nerve to make you pay for unlimited internet/data and then charge extra for email!
Vormulac said:
Seems a bit of a nerve to make you pay for unlimited internet/data and then charge extra for email!
Click to expand...
Click to collapse
That's not the issue. Any half decent server administrator makes sure that his/her servers do not relay messages on behalf of the entire planet. However, when done properly the provider will have a system that allows relaying for authenticated clients, and will provide all the information their customers need to set up their clients accordingly.
If your POP mail provider, presumably your ISP, cannot supply authenticated SMTP access (check this first!), you have a few realistic options (I'm sure there are more!)
Buy access to an authenticated SMTP server (e.g. http://www.authsmtp.com/mobile/index.html) which will allow you to send email via SMTP regardless of how you are connected.
Use an intermediate email service like Gmail to collect your POP3 email and send replies via Gmail.
Your cellular provider will have their own SMTP gateway - you can change your email settings to use their SMTP gateway when connected via cellular data, but I guess you will have to do this manually every time you want to switch between cellular and WiFi.
Note that this isn't a fault with Hero or Android - it's your mail provider!
Regards,
Dave
My ISP is Blueyonder (well, Virgin now). I just think it's strange that they should be rejecting the smtp connection as I have set up these two pop3 accounts on every mobile I've had for the last 10 years and they've worked perfectly (a Siemens, a few Sony-Ericssons and a Nokia and that's on Virgin Mobile, Orange and 3 networks). It would be a shame if I was limited to using my Hotmail for everything from now on.
I'll drop Virgin customer services a line and see if there is some way they can do this magical authentication thing of which you speak.