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Re: [Openvpn-users] openvpn tap network limits

  • Subject: Re: [Openvpn-users] openvpn tap network limits
  • From: Derek Arnold <darnold@xxxxxxxxxxxxxxx>
  • Date: Thu, 16 Aug 2007 19:15:58 -0500

Marco Castillo wrote:
> Dear Jason:
>   I think I can give you some answers to your second concern. We have 
> deployed a 50 nodes site-to-site configuration with OpenVPN. The 
> OpenVPN server is a pentium 4 with dual core 2.4 Ghz with 2 GB of RAM 
> running RHEL4. I have this configuration running for about 6 months 
> now, the traffic is somehow heavy, the VPN tunnels are used at every 
> hour, downloading files, using VNC for remote management, etc. At this 
> time I had never seen that the OpenVPN process passes the 5% use of 
> CPU. The machine stays with the CPU load at 5% - 10%, and with plenty 
> of RAM. The server is just used for OpenVPN.
> With the configuration you mentioned, I don't think you're going to 
> have any issues.
> Hope this helps
> Regards
> Marco
Just to chime in, we have a Pentium II with a half gig of RAM serving as 
firewall and OpenVPN server supporting about 30 tunnels and our CPU 
usage is about the same at peak usage.  OpenVPN is currently using about 
12mb of RAM.  You'll be fine.
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