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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