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Re: [Openvpn-users] cont...problems only on windows server....


  • Subject: Re: [Openvpn-users] cont...problems only on windows server....
  • From: Leonard Isham <leonard.isham@xxxxxxxxx>
  • Date: Thu, 10 Nov 2005 14:36:46 -0500

On 11/10/05, Robert Kuszinger <kuszinger@xxxxxxxxx> wrote:
>
>
> Hi all!
>
>
> // !!Derrick, thanks for the idea with Ethereal monitoring.  //
>
> So, it seems that all request from the client are coming in correctly:
>
>
> (client is ....99.6,   server is 99.1)
>
>
> (Some samples, remote desktop and http requests. I was monitoring the TAP
> interface... what else to do?)
>
> No.     Time        Source                Destination           Protocol
> Info
>       1 0.000000    172.16.99.1           172.16.99.3           NBNS
> Name query NB SZFVAR<1b>
>       2 0.750961    172.16.99.1           172.16.99.3           NBNS
> Name query NB SZFVAR<1b>
>       3 1.503354    172.16.99.1           172.16.99.3           NBNS
> Name query NB SZFVAR<1b>
>       4 6.390920    172.16.99.6           172.16.99.1           TCP
> 3087 > 3389 [SYN] Seq=0 Ack=0 Win=16384 Len=0 MSS=1366
>       5 9.388672    172.16.99.6           172.16.99.1           TCP
> 3087 > 3389 [SYN] Seq=0 Ack=0 Win=16384 Len=0 MSS=1366
>       6 14.367642   172.16.99.6           172.16.99.1           TCP
> 3088 > http [SYN] Seq=0 Ack=0 Win=16384 Len=0 MSS=1366
>       7 15.379773   172.16.99.6           172.16.99.1           TCP
> 3087 > 3389 [SYN] Seq=0 Ack=0 Win=16384 Len=0 MSS=1366
>       8 17.287473   172.16.99.6           172.16.99.1           TCP
> 3088 > http [SYN] Seq=0 Ack=0 Win=16384 Len=0 MSS=1366
>       9 23.338659   172.16.99.6           172.16.99.1           TCP
> 3088 > http [SYN] Seq=0 Ack=0 Win=16384 Len=0 MSS=1366
>
>
> Well, no answer is sent back to the client.
> Here is the routing table of the server - what could be the problem? I still
> don't understand.

I assume this is on the client side.  What packets do you see on the
server side?

No inbound packets on the TAP interface could indicate that there is a
firewall on the server blocking the packets.


--
Leonard Isham, CISSP
Ostendo non ostento.

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