Re: [Openvpn-users] Windows XP client --> Proxy --> Windows 2003 Server

["James Yonan" <jim@xxxxxxxxx>]

Claudio Rodrigues <crodrigues@xxxxxxxxxxxxxxxxxxxxx> said:

> Hey guys,
>  
> Bear with me as I have never used OpenVPN and it is giving me a hard time,
refusing to work. :-)
> What I want to achieve is simple: connect one machine behind a proxy (that
DOES support the CONNECT method) to a server I have in the office.
> The XP client has this .ovpn file:
>  
> remote MY_EXTERNAL_IP
> port 443
> proto tcp-client
> tun-mtu 1500
> tun-mtu-extra 32
> dev tap
> ifconfig 192.168.10.3 255.255.255.0
> ping 10
> secret key.txt
>  
> And I am calling OpenVPN using:
> openvpn --config home.ovpn --http-proxy myproxy 8080
>  
> The server has this config file:
> port 443
> proto tcp-server
> tun-mtu 1500
> tun-mtu-extra 32
> dev tap
> ifconfig 192.168.10.1 255.255.255.0
> secret key.txt
> ping 10
> comp-lzo
> verb 4
> mute 10
> 
> The connection is established but on the client I get this message:
>  
> C:\Program Files\OpenVPN\config>openvpn --config home.ovpn --http-proxy myproxy
>  8080 --comp-lzo
> Tue Dec 02 10:51:26 2003 0: OpenVPN 1.5.0 Win32-MinGW [SSL] [LZO] built on Nov 2
> 0 2003
> Tue Dec 02 10:51:26 2003 1: LZO compression initialized
> Tue Dec 02 10:51:27 2003 2: TAP-WIN32 device [Local Area Connection 2] opened: \
> \.\{07F9F829-D7BD-4D05-9A58-660392CEE0D1}.tap
> Tue Dec 02 10:51:27 2003 3: Successful ARP Flush on interface [196610] {07F9F829
> -D7BD-4D05-9A58-660392CEE0D1}
> Tue Dec 02 10:51:27 2003 4: NOTE: could not delete previously set dynamic IP/net
> mask: 169.254.174.180/255.255.0.0 (status=31)
> Tue Dec 02 10:51:27 2003 5: Succeeded in adding a temporary IP/netmask of 192.16
> 8.10.3/255.255.255.0 to interface {07F9F829-D7BD-4D05-9A58-660392CEE0D1} using t
> he Win32 IP Helper API
> Tue Dec 02 10:51:27 2003 6: Attempting to establish TCP connection with
140.10.10.55:8080
> Tue Dec 02 10:51:27 2003 7: TCP connection established with 140.10.10.55:8080
> Tue Dec 02 10:51:28 2003 8: TCPv4_CLIENT link local: [undef]
> Tue Dec 02 10:51:28 2003 9: TCPv4_CLIENT link remote: 140.10.10.55:8080
> Tue Dec 02 10:51:28 2003 10: WARNING: Bad encapsulated packet length from peer (
> 3338), which must be > 0 and <= 1579 -- please ensure that --tun-mtu or --link-m
> tu is equal on both peers -- this condition could also indicate a possible activ
> e attack on the TCP link -- [Attemping restart...]
> Tue Dec 02 10:51:28 2003 11: Connection reset, restarting [0]

Which HTTP proxy are you using?

James


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