Firewall Wizards mailing list archives

Re: linux-ipsec: IP tunnel over a NAT (IP masq) possible ?


From: "John D. Hardin" <jhardin () wolfenet com>
Date: Fri, 16 Jul 1999 17:15:36 -0700 (PDT)

On Fri, 16 Jul 1999, Otel Florian-Daniel wrote:

I have the following problem: I have a machine behind a NAT performing 
one-to-many address translation (inside: Net 10. outside: only one IP
addr). What i would like to do is to set a IP tunnel from one of the
inside machines (the "client") to a remote machine (i.e. beyond NAT)
(the "server"). Such that after the tunnel setup the inside machine
appears to be virtually attached to the remote net.

Requirements:
-As it is implied, I don't have administrative control over the NAT
(otherwise e.g. i could simply attach the client beyond it and use
`oridnary` IP tunneling)
-The tunnel is encrypted  (overhead issues irrelevant for the time being)
-The tunnel is set on-demand, in a client-server fashion (e.g. tunneling 
over a TCP connection).
-The operating system: Linux
  
Take a look at
ftp://ftp.rubyriver.com/pub/jhardin/masquerade/ip_masq_vpn.html
  
It may be what you want..

--
 John Hardin KA7OHZ                               jhardin () wolfenet com
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