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Here is the situation.... Few days ago OpenVpn Portable / Expatshield and other vpn application works perfectly on my network.. My ISP blocks some port and now the vpn doesnt work on my ISP but not all of them.. You might heard of Pd-proxy and wi-free. those application works perfectly.... :roll:

the condition of my isp is that you can connect to the internet even if you dont have any credit and can send ping request

but udp port 53 doesn't work . I dont know how... may be they closed it . i have analyzed them both and compare them both with openvpn mechanism and those are very similar and identical...

but Pd-proxy sets everything statically !

So my question is, how pd-proxy is doing these steps . Is there any way to set or manually perform those steps ??

Here is the debugging log of a pd-proxy when it connects ..

Initializing Engine...
PD-Proxy VPN, Inc sales@pdproxy.com>
Tunnel Engine v2.1.9 Build Date 04/19/2012

Checking internet connection...
Default gateway is:
Server address:
Windows version: 0x0006
Checking for prerequisites

Winsock send autotuning is enabled.

Connecting to UDP Server...
Scanning open ports...
Connecting to defined UDP Port: 9201
Open port 9201 found...

Premium account succesfully authenticated!

Enabling interface [Local Area Connection 2]
Opening driver \\.\Global\{6B0D46EE-7D93-4EAE-99D5-58D65AA506B6}.tap

Resetting DNS of interface...
TAP-Win32 Driver Version 9.8
TAP-Win32 MTU=1500

Setting IP of interface to
Waiting for interface to come up...
Your UID: 8
Data Compression: 2
Your IP:
VPN Gateway:
Server IP:
Route Delay: 5
Using IP Helper

Updating routing table........
Route: Route 1 sucesfully added!
Route: Route 2 sucesfully added!
Route: Route 3 sucesfully added!
Succesfully connected to server!
For help & support visit http://forum.pdproxy.com/

And here is log of wi-free

Using server: NL, Amsterdam
ICMP/Direct Build Dec 24 2012 20:50:35
Trying UDP ports 53, 80, 110, 443, 2401, 5190, 5222, 8080, 9200, 9201
Probe packet payload size ... 128.OK (on port 9201) 1458.OK
Request IP from server...
Server change requested.
Request IP from server...
Got IP, sid 0xeae2
Auth OK, but all pre-paid time is used. Guest access.
Windows version: 6.1.7600.2 Suite 100 Type 1
Waiting for TUN inteface enable.
Opening device \\.\Global\{370662DA-AB2E-4D57-85FF-DC627F7CBE61}.tap
Activating interface 'tun'
Gateway changed successfully

But When i connect using OpenVpn it stucks in here..

Fri Mar 15 06:09:26 2013 OpenVPN 2.1_rc19 i686-pc-mingw32 [SSL] [LZO2] [PKCS11] built on Jul 1 2011
Fri Mar 15 06:09:26 2013 WARNING: No server certificate verification method has been enabled. See http://openvpn.net/howto.html#mitm for more info.
Fri Mar 15 06:09:26 2013 NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
Fri Mar 15 06:09:26 2013 NOTE: --script-security method='system' is deprecated due to the fact that passed parameters will be subject to shell expansion
Fri Mar 15 06:09:26 2013 Control Channel MTU parms [ L:1541 D:138 EF:38 EB:0 ET:0 EL:0 ]
Fri Mar 15 06:09:26 2013 Data Channel MTU parms [ L:1541 D:1400 EF:41 EB:4 ET:0 EL:0 ]
Fri Mar 15 06:09:26 2013 Local Options hash (VER=V4): '3514370b'
Fri Mar 15 06:09:26 2013 Expected Remote Options hash (VER=V4): '239669a8'
Fri Mar 15 06:09:26 2013 Socket Buffers: R=[8192->8192] S=[8192->8192]
Fri Mar 15 06:09:26 2013 UDPv4 link local (bound): [undef]:9201
Fri Mar 15 06:09:26 2013 UDPv4 link remote:

after that nothing happens.... :?:

can anyone tell me how the pd-proxy /wi-free works or any clue about my problem with openVpn...

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migrated from stackoverflow.com Mar 23 '13 at 19:30

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