openvpn-devel

[Openvpn-devel] Problem with OpenVPN 2.1_rc9 on Vista 32-bit

[Bart K. <me...@ba...>]

Sent this to openvpn-users a while back with no response.  Perhaps it is 
a question better targeted @ the developers?

--Bart


Bart Kus wrote:
> Thu Aug 07 19:24:06 2008 OpenVPN 2.1_rc9 i686-pc-mingw32 [SSL] [LZO2] 
> [PKCS11] built on Jul 31 2008
>
> [...] snip! [...]
>
> Thu Aug 07 19:24:53 2008 write to TUN/TAP  [State=AT?c 
> Err=[c:\src\21\tap-win32\tapdrvr.c/2268] #O=10 Tx=[49,0] Rx=[6,88] 
> IrpQ=[1,1,16] PktQ=[0,1,64]]: The data area passed to a system call is 
> too small.   (code=122)
> Thu Aug 07 19:25:03 2008 write to TUN/TAP  [State=AT?c 
> Err=[c:\src\21\tap-win32\tapdrvr.c/2268] #O=10 Tx=[49,0] Rx=[6,89] 
> IrpQ=[1,1,16] PktQ=[0,1,64]]: The data area passed to a system call is 
> too small.   (code=122)
> Thu Aug 07 19:25:12 2008 write to TUN/TAP  [State=AT?c 
> Err=[c:\src\21\tap-win32\tapdrvr.c/2268] #O=10 Tx=[50,0] Rx=[6,90] 
> IrpQ=[1,1,16] PktQ=[0,1,64]]: The data area passed to a system call is 
> too small.   (code=122)
>
> ...etc...
>
> Anyone know what might be going wrong here?  Would more data help?
>
> Thanks for any help,
>
> --Bart
>
>

Re: [Openvpn-devel] Problem with OpenVPN 2.1_rc9 on Vista 32-bit

[Bart K. <me...@ba...>]

Bart Kus wrote:
> Sent this to openvpn-users a while back with no response.  Perhaps it is 
> a question better targeted @ the developers?
>
> --Bart
>
>
> Bart Kus wrote:
>   
>> Thu Aug 07 19:24:06 2008 OpenVPN 2.1_rc9 i686-pc-mingw32 [SSL] [LZO2] 
>> [PKCS11] built on Jul 31 2008
>>
>> [...] snip! [...]
>>
>> Thu Aug 07 19:24:53 2008 write to TUN/TAP  [State=AT?c 
>> Err=[c:\src\21\tap-win32\tapdrvr.c/2268] #O=10 Tx=[49,0] Rx=[6,88] 
>> IrpQ=[1,1,16] PktQ=[0,1,64]]: The data area passed to a system call is 
>> too small.   (code=122)
>> Thu Aug 07 19:25:03 2008 write to TUN/TAP  [State=AT?c 
>> Err=[c:\src\21\tap-win32\tapdrvr.c/2268] #O=10 Tx=[49,0] Rx=[6,89] 
>> IrpQ=[1,1,16] PktQ=[0,1,64]]: The data area passed to a system call is 
>> too small.   (code=122)
>> Thu Aug 07 19:25:12 2008 write to TUN/TAP  [State=AT?c 
>> Err=[c:\src\21\tap-win32\tapdrvr.c/2268] #O=10 Tx=[50,0] Rx=[6,90] 
>> IrpQ=[1,1,16] PktQ=[0,1,64]]: The data area passed to a system call is 
>> too small.   (code=122)
>>
>> ...etc...
>>
>> Anyone know what might be going wrong here?  Would more data help?
>>
>> Thanks for any help,
>>
>> --Bart
>>
>>
>>     
>
>
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The list is looping this message.  I don't know why.  :(

--Bart

Re: [Openvpn-devel] Problem with OpenVPN 2.1_rc9 on Vista 32-bit

[James Y. <ji...@yo...>]

Bart Kus wrote:
> Sent this to openvpn-users a while back with no response.  Perhaps it is 
> a question better targeted @ the developers?
> 
> --Bart
> 
> 
> Bart Kus wrote:
>> Thu Aug 07 19:24:06 2008 OpenVPN 2.1_rc9 i686-pc-mingw32 [SSL] [LZO2] 
>> [PKCS11] built on Jul 31 2008
>>
>> [...] snip! [...]
>>
>> Thu Aug 07 19:24:53 2008 write to TUN/TAP  [State=AT?c 
>> Err=[c:\src\21\tap-win32\tapdrvr.c/2268] #O=10 Tx=[49,0] Rx=[6,88] 
>> IrpQ=[1,1,16] PktQ=[0,1,64]]: The data area passed to a system call is 
>> too small.   (code=122)
>> Thu Aug 07 19:25:03 2008 write to TUN/TAP  [State=AT?c 
>> Err=[c:\src\21\tap-win32\tapdrvr.c/2268] #O=10 Tx=[49,0] Rx=[6,89] 
>> IrpQ=[1,1,16] PktQ=[0,1,64]]: The data area passed to a system call is 
>> too small.   (code=122)
>> Thu Aug 07 19:25:12 2008 write to TUN/TAP  [State=AT?c 
>> Err=[c:\src\21\tap-win32\tapdrvr.c/2268] #O=10 Tx=[50,0] Rx=[6,90] 
>> IrpQ=[1,1,16] PktQ=[0,1,64]]: The data area passed to a system call is 
>> too small.   (code=122)

Are you using a non-standard MTU size?  This error indicates that a 
write operation to the TAP driver is impossibly small, i.e. the packet 
isn't even large enough to contain an ethernet header (for dev tap) or 
IPv4 header (for dev tun).

James

Re: [Openvpn-devel] Problem with OpenVPN 2.1_rc9 on Vista 32-bit

[Bart K. <me...@ba...>]

James Yonan wrote:
> Bart Kus wrote:
>> Sent this to openvpn-users a while back with no response.  Perhaps it 
>> is a question better targeted @ the developers?
>>
>> --Bart
>>
>>
>> Bart Kus wrote:
>>> Thu Aug 07 19:24:06 2008 OpenVPN 2.1_rc9 i686-pc-mingw32 [SSL] 
>>> [LZO2] [PKCS11] built on Jul 31 2008
>>>
>>> [...] snip! [...]
>>>
>>> Thu Aug 07 19:24:53 2008 write to TUN/TAP  [State=AT?c 
>>> Err=[c:\src\21\tap-win32\tapdrvr.c/2268] #O=10 Tx=[49,0] Rx=[6,88] 
>>> IrpQ=[1,1,16] PktQ=[0,1,64]]: The data area passed to a system call 
>>> is too small.   (code=122)
>>> Thu Aug 07 19:25:03 2008 write to TUN/TAP  [State=AT?c 
>>> Err=[c:\src\21\tap-win32\tapdrvr.c/2268] #O=10 Tx=[49,0] Rx=[6,89] 
>>> IrpQ=[1,1,16] PktQ=[0,1,64]]: The data area passed to a system call 
>>> is too small.   (code=122)
>>> Thu Aug 07 19:25:12 2008 write to TUN/TAP  [State=AT?c 
>>> Err=[c:\src\21\tap-win32\tapdrvr.c/2268] #O=10 Tx=[50,0] Rx=[6,90] 
>>> IrpQ=[1,1,16] PktQ=[0,1,64]]: The data area passed to a system call 
>>> is too small.   (code=122)
>
> Are you using a non-standard MTU size?  This error indicates that a 
> write operation to the TAP driver is impossibly small, i.e. the packet 
> isn't even large enough to contain an ethernet header (for dev tap) or 
> IPv4 header (for dev tun).
>
> James
Negatory.  MTU is 1500:

   MTU  MediaSenseState   Bytes In  Bytes Out  Interface
------  ---------------  ---------  ---------  -------------
4294967295                1          0      23833  Loopback 
Pseudo-Interface 1
  1500                1  2450317296  362556326  Local Area Connection
  1500                5          0          0  Local Area Connection 2

Also, I'm using the TUN device.  Here's my config:

client
dev tun
proto tcp
remote <CENSORED>
resolv-retry infinite
nobind
persist-key
persist-tun
pkcs12 bkus1.p12
verb 3
ns-cert-type server
route-delay 30
route-method exe


The server grants the connection, an IP is assigned, but when traffic 
tries to move, I keep seeing those errors and nothing gets communicated.

--Bart