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Re: [Openvpn-users] OpenVPN 2.0beta11 on Linux Kernel 2.2


  • Subject: Re: [Openvpn-users] OpenVPN 2.0beta11 on Linux Kernel 2.2
  • From: James Yonan <jim@xxxxxxxxx>
  • Date: Fri, 1 Oct 2004 22:35:31 -0600 (MDT)


On Sat, 2 Oct 2004, Marc-Christian Petersen wrote:

> Hi all,
> 
> I've compiled 2.0beta11 successfully and use it on lots of machines (all 2.4) 
> but now I have a customer who still has Kernel 2.2 running. The problem is, 
> the tunnel stays up if I do nothing but ping the end. If I try to ssh into 
> the VPN server or browse a samba share, the connection locks up immediately 
> and comes back again after ~60 seconds (Inactivity timeout (--ping-restart), 
> restarting)
> 
> Just my 2 cents: Could it be that the fallback stuff from EPOLL does not work? 
> 2.2 does not know even a millimeter about epoll ;)

I doubt it.  EPOLL is only a special optimization used on Linux 2.6 (and
patched 2.4) in TCP server mode.  The fallback APIs of poll and select are
still used for everything else.


James


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