I first though that comes to my mind as a negative implication is DoS
attacks against the VPN server when packet authorization is disabled.
On Wed, Aug 2, 2017 at 2:41 PM, Abi Askushi <rightkickt...@gmail.com> wrote:
> Hi All,
>
> I am considering to setup OpenVPN without encryption and packet
> authorization, as a way to lower the VPN overhead, by using the following
> directives:
>
> cipher none
> auth none
>
> Apart from having the tunneled traffic on the clear, since now it will not
> be encrypted, what other implications are there for going like this?
>
> My main concern for this setup is not the encryption, but low overhead.
>
> FYI, when testing standard VPN setup, with AES-128-CBC cipher and auth
> enabled, + lzo compression, I was receiving 14 - 18% VPN overhead on top
> the total udp traffic observed on WAN. When disabling encryption and auth,
> I received 6% overhead.
>
> Thanx in advance for your feedback.
>
>
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