i have a WM6 device which i use to connect to my work network via GPRS and VPN. When i try and connect to our mail server it states that it was not possible to connect.
If I connect via WiFi and then VPN i can connect to our mail server and download email.
Using Windows XP incoming connections (VPN) and Mailtraq for the email server
Any Ideas..
TIA
pop3 is available over gprs unless your cell-phone company block those ports
vpn is available over gprs unless your cell-phone company block those ports
if you connect to vpn you get access to anything the virtual private network have
access to
as anything tunnel over vpn and your cell-phone company's setup just see vpn data
on the vpn port and as such data is not blocked even if your cell-phone company block
the ports the vpn network accessed and transfered over the port their vpn connection use
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
I am trying to establish a VPN connection but cannot get the connection to work.
I am using the built in MS VPN client of Win Mobile v5.0 (5.1.1700 build 14352.0.1.0)
I am having real problems getting a VPN connection set up with our network.
I have tried both PPTP and L2PT
When L2TP, I was authenticating with a preshared key
Firewall logs show PPTP negotiation successful, and issues a VPN IP address to the device
It can ping the firewall external interface, but times-out trying to reach an internal address
The VPN session is established, but the firewall logs don't register either deny or allow traffic for each internal ping request, rather the firewall packet error count increments for each failed attempt.
Any help is greatly appreciated.
I had problems with PPTP - gave up
I hate the way Windows mobile labels connections.
I connect to many customers with PC Anywhere, VNC, SSH etc and I have access via serveral different windows PPTP VPN.
Like you I setup the details in connections and try to dial.
Nothing seems to happen. The connect option does not change to disconnect. So I assume it is not connected.
I have a feeling these connection do not work over WIFI. and perhaps work over T-mobile 3g only, to maximise data revenues.
Seems very buggy to me. I would really like someone to post a working example/Instructions. Can I get a refund on my MDA PRo?
MS please note it is not a connection to my work or an internet connection it is to a customer for remote support, likewise I often connect remotely to my home via PPTP from my office.
confirmed VPN works over t-mobile 3g not Wifi
SEems the VPN links only work over 3g not Wi FI.
I'm using a PPTP connection over either 3G of WIFI depending on te active connection.
- When WIFI is active the PPTP connection connects using WIFI (I can switch off the phone, so it must be using that one)
- When no WIFI connection is active it automatically connects to 3G first, and than starts the PPTP session
In network management I'v set:
Internet:
Internet (the one containing the 3G connection)
select 'this network connects to the Internet' on the proxy tab.
private network:
My Work (the one that contains the vpn connection)
do NOT select 'this network connects to the Internet' on the proxy tab.
So as you can see, nothing special (I'm using a Qtek 9000 with standard Wm5 ROM)
Hi there
I have an XDAIIs with a GPRS connection, I can access my company emails
I want to connect to my work VPN to access the network
I have set the VPN ip address in my work connections, when I select connect to my VPN it dials my GPRS and connects but doesnt call the ip address
Any ideas what I am doing wrong or what I should be doing?
Regards
Tim
throw ipsec away and use openvpn and brand new openvpn for pocketpc port...
Trust me... it's well worth the try (and it's opensource!!!)
Bye
Drakpz
i have isp.cingular provisioned and can connect some of the time.
1 vpn which goes to my home network works using vista as the vpn server connection. It does not always connect the first time though.
My work vpn which is pptp on a watchguard firewall, has 5% chance of actually connecting. Most of the error messages are talking about packets missing etc... When it does connect i cannot ping servers on the network but i see that the phone has a correct ip address and dns servers from the vpn. the gateway is the same as the ip assigned to the connection.
I have the same issue using the tilt over wifi from home where the vpn does not always connect at work.
I know the work vpn is fine since i use it all the time with vista's vpn dialup stuff.
Anyone got answers or ideas?
I have a simple home net using mostly windows vista and 7 computers, some printers, external hd servers for backup storage and cameras in a workgroup static ip setup behind an off the shelf router. i set one of the computers as the vpn server since i dont want to buy a dedicated hardware vpn in a vista ultimate machine thats on 24/7 anyway with an incomming server... with the correct ports forwarded from the router to the vpn host.
my remote vpn laptop connects to the vpn fine and can see the network resources, however, has no internet connection once the vpn is connected. do i have to set the host vpn computer to do some sort of its own dns assignments to the incomming connection? its set for dhcp so i dont know why it would assign a valid IP to an incomming but not any other info.
in other words, on my remote laptop, i can connect to a random wireless internet hotspot and have full internet access. I can then enable vpn and log in to my home network and see all the network resources, however if i try to use an internet browser, there appears to be no internet. if i disconnect the vpn, the internet resumes to work fine and obviously the vpn resources are no longer accessable.
what am i missing? under incomming connection properties general tab, "allow others to make private..." is checked, under users the correct user is selected along with "require all users to secure...", and under networking ipv4 "allow callers to access..." is checked, and assign ip auto using dhcp is checked so I would think it should be working fine at this point, however it doesn list anywhere a gateway or dns to assine to incomming connections, only ip's.
host vpn computer is vista ultimate with static ip behind a retail router also assigned a static ip via my home isp.
the remote laptop is running ubuntu 12. just for kicks and to rule out ubuntu causing some problem, i set my android phone up for vpn use via 4g network, and the same thing happens. connects vpn fine, has local resources, but loses internet.
i also was curious as to having a vpn log in for the existing user account on the vpn host machine... in other words, should i just add the username on the host computer as a vpn client, and log in vpn using those credentials? and will that even work if that account is logged in, or will i have to remember to log out when im on the road to use the vpn connection.
thanks all!