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FreeBSD Security Archives: RE: Layer 2 ethernet encryption?

RE: Layer 2 ethernet encryption?

Sergey S. Kosyakov (ksitp.ac.ru)
Tue, 07 Sep 1999 09:41:21 +0400 (MSD)

On 07-Sep-99 dmparacnet.com wrote:
> Is it possible to encrypt ethernet packets so that all layers above
> layer 2 would be encrypted? The idea I had was to make a device that
> could defeat a TCP sniffer by encrypting the IP headers. Is this
> doable? Viable? A reinvention of the wheel?

You can establish secure tunnel with TUND - over tun(4) pseudo-devices if you
use routing, or over divert(4) sockets with ipfw(8) rules for LAN.

E-Mail: Sergey S. Kosyakov <ksosi.ru>
Date: 07-Sep-99
Time: 09:39:12

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