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Setting up VPN via SSHD

from this link

  • enable
    • PermitTunnel yes
  • disable
    • AllowTcpForwarding yes

Important: Both sides need to run as root to create the tunnel device. Thus, 'ssh -w 0:0 root@www.hentschel.net' must run as root on the client side too. <quote>

       +---------------+            OpenSSH 4.3           +---------------+
       |   hentschel   | tun0 -- Tunnel Interface -- tun0 |   zm.home     |
       |  Has a tunnel | <------------------------------->|  Has a tunnel |  
       |  and ethernet | 10.0.0.100            10.0.0.200 |  and ethernet |
       +-------+-------+     point to point connection    +-------+-------+
          eth0 |                 creates a bridge                 | eth0  
198.57.187.185 |               that plugs machine B               | 192.168.1.100
      Routable |                  into network A                  |          
      address  |                                                  |
       here    |                                                  |
       +-------+-------+                                  +-------+-------+ 
       |   Network A   |                                  |   Network B   |
       |  The Internet |                                  | 192.168.1.1/24|
       |  Has internet |                                  |  Has internet |
       |               |                                  |  NAT gateway  |
       +---------------+                                  +---------------+

</quote>