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Subject: Re: CIPE, NAT, ...
From: Al Grimstad <al,AT,grimstad,DOT,mv,DOT,com>
Date: Thu, 1 Nov 2001 19:24:33 +0100
In-reply-to: <20011101132359.GA5013@dhcp212.jak.mendelu.cz>

It is possible.

Here is my configuration:

lan -- A -- lan -- B -- wan -- C -- lan

I run a cipe tunnel between A and C, both linux boxes. B is a DSL PPoA router 
that does NAT but doesn't block anything I need. C interfaces to the WAN via 
cable modem. In A's options files the "me" parameter is the address used in 
communications locally with B, i.e., a private address. The matching "peer" 
parameter in C's option file uses B's IP address, not A's (but the packet go 
to A because B does NAT).

Good luck.

-- al

At 02:23 PM 11/1/2001 +0100, Robert Vojta wrote:
>  I read almost whole cipe info page and I found, that there is a possibility
>to establish CIPE connection between two machines, when one have static
>IP address and second machine have dynamic based address from DHCP and from
>subnet Between these two machines is masq router with no ports
>blocking, but I haven't any access to this router (and I will never have) for
>some port forwarding, etc.
>  I spent whole day of reading archive, searching web site with google, ...
>but I'm not sure if this is possible. Everyone who have NATed network is
>speaking about port forwarding but I can't do this.
>  Please, is this possible and if yes, can I find more examples than cipe
>info have? Or is there anyone who have working this configuration?
>King regards, 
>                                                                --Robert 
>  Never test for an error condition you don't know how to handle.  

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