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Date:      Mon, 18 Mar 2002 22:51:41 -0800
From:      "Crist J. Clark" <cjc@FreeBSD.ORG>
To:        Eugene Grosbein <eugen@svzserv.kemerovo.su>
Cc:        net@FreeBSD.ORG
Subject:   Re: natd and static nat for different subnets
Message-ID:  <20020318225141.I60554@blossom.cjclark.org>
In-Reply-To: <3C96CCDA.C54342F5@svzserv.kemerovo.su>; from eugen@svzserv.kemerovo.su on Tue, Mar 19, 2002 at 12:30:02PM %2B0700
References:  <3C96CCDA.C54342F5@svzserv.kemerovo.su>

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On Tue, Mar 19, 2002 at 12:30:02PM +0700, Eugene Grosbein wrote:
> Hi!
> 
> man natd says it's possible to implement static nat with one public address
> for the set of private hosts. It's very useful. 
> 
> Suppose we have many tens of separated private networks each having its own
> public address and own gateway. Is is possible to configure natd to do
> static nat for network masks, not only for sets of hosts? I'd like to
> say:
> 
> redirect_address 172.20.2.0/24 123.45.56.78
> redirect_address 172.20.2.1 123.45.56.78
> 
> so incoming traffic for 123.45.56.78 is translated to 172.20.2.1
> and all outgoing traffic from the whole net 172.20.2.0/24 is aliases
> to appear from 123.45.56.78?
> 
> It seems natd can't do that now. So how can it be achived without
> flooding config of natd with all those IPs from all those networks?

You can run multiple natd(8)s and control which block each one
translates with their firewall divert(4) rules.
-- 
Crist J. Clark                     |     cjclark@alum.mit.edu
                                   |     cjclark@jhu.edu
http://people.freebsd.org/~cjc/    |     cjc@freebsd.org

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