As i know, as long your VPN-Gateway is not a NAT-Router the number of
simultaneous TCP-Connections is insignificant.
vTUN only creates a TUN/TAP Device and configure the parameters for this
device as needed.
vTUN can also encrypt and compress your traffic and do some traffic shaping.
If all these options are disabled, you can reach high bandwidth like a
charm.
We are pushing real 100 MBits via ARM-Hardware.
If your VPN-Gateway is a NAT-Router, the used VPN-Mechanisms does not
impact the speed / simultaneous TCP connections. It belongs to your CPU,
RAM and Kernel because the kernel have to build NAT-Sessions for each
TCP-Connection and each forwarded packet have to be routed trough a
hash-table (NAT-Table).
With two static IP-Addresses i suggest to use GRE / IPIP because this
protocols have lower overhead.
If you have one static and one dynamic or both dynamic ip-addresses, so you
have no other choice and have to use OpenVPN, vTUN, PPP.
Liebe Grüße aus Freilassing,
*Michael Rack*
RSM Freilassing
--
RSM Freilassing Tel.: +49 8654 607110
Nocksteinstr. 13 Fax.: +49 8654 670438
D-83395 Freilassing www.rsm-freilassing.de
2014-03-12 2:17 GMT+01:00 Guido Sanchez <guidito....@gmail.com>:
> Hi,
>
> I use an application that uses a high number of simultaneous TCP
> connections (over 16,000) over a tunnel to hide the source IP of the
> traffic. I was using GRE or IPIP but I want to start using VTUN for this
> since I don't have such modules enabled on my new environment. I tried
> openvpn but it didn't work quite well and I was wondering if I can set
> up vtun to do this and if there's any limitation or configuration that I
> should be aware of.
> It's not much traffic in bandwidth (usually 30Mbps) but like I said
> it's a lot of connections at the same time. If I could preserve a good
> part of the bw that would be good too. I don't need encryption or
> compression.
>
> Thanks,
> Guido.
>
>
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