Hi

Thank you for your help.

On 08/19/2013 08:20 PM, Gert Doering wrote:
> That should only be relevant if the connection comes in over TCP
> (there are no distinct sockets for multiple UDP clients), plus he
> said that all clients get an IP address, so the connection must
> have been established just fine.
> 
> I'd check the server logs for anything that looks interesting when
> the 257th client connects - usually OpenVPN is quite talkative
> about things it does not like.

Well, there is nothing in the logs, even when I raise verbosity to the
maximum I see nothing special.

The funny thing is also that when I ping the unpingable host I see the
packet coming within the openvpn process, when in maximum verbosity
mode. This means in my opinion, that this limit cannot be in the tap
kernel driver, but must be in openvpn somehow.

I also know openvpn as quite talkative when it comes to special cases,
but in this case there's just nothing.

When analyzing with tcpdump, I see arp packets going to the client
asking for the mac-address, but no answer. On client side I could not
make sure that the arp packet came in, still need to check this.


peter

-- 
:: e n d i a n
:: security with passion

:: peter warasin
:: http://www.endian.com   :: [email protected]

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