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Re: [Openvpn-users] Ping only works in one Direction...


  • Subject: Re: [Openvpn-users] Ping only works in one Direction...
  • From: "Denis Oliana" <oliana@xxxxxxx>
  • Date: Mon, 6 Mar 2006 16:02:53 +0100 (Mitteleuropäische Zeit )
  • Importance: Normal

> Den mandag 6.mar kl. 14:27 skrev Denis Oliana:
>
>>
>>
>> Jon Bendtsen schrieb:
>>> Den mandag 6.mar kl. 13:59 skrev Denis O.:
>>>
>>>> Hi.
>>>>
>>>> I have just set up a OpenVPN Server (W2k3-Server) and a Client
>>>> running
>>>> xp.
>>>> After struggling with the configs and routes I am now able to
>>>> ping from
>>>> the client to the server. My big problem now is, that I am not
>>>> able to
>>>> ping from the server to the client. Firewall is off.
>>>
>>> client or server firewall?
>>> Check the routing table.
>>> Use a packet sniffer to see where the packets are, meaning
>>> do they leave the right net card interface? eth0? tun0?
>>> Do they enter through the right one?
>>>
>>>
>>>
>>>
>>> JonB
>> Hello Jon,
>>
>>     I have tried turning off both firewalls. Right now they are turned
>> on again (with the proper holes of course). The routing tables also
>> seems to be OK (see below). Do you see anything wrong in the configs?
>
> No i did not see anyhting in the configs, but i wonder a bit why
> there are
> 4 lines with 255.255.255.255 in the bottom of the routing table
>
> Anyway, try using a network sniffer and follow the packets.
>
> JonB

Hi Jon,

   I have used ethereal now and I still cannot get any further. from the
client side pings go out and show up on the server. (ping request +
reply)

The requests from the server don't show up on the client.

The strange thing is, that when comparing the two packets (server reply &
request) there are exactly the same. All information is correct. Now I do
not have any clue on where to look next...

regards,

Denis


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