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Date:      Mon, 24 Sep 2001 13:39:42 -0500
From:      Doug Poland <doug@polands.org>
To:        "P. U. (Uli) Kruppa" <root@pukruppa.de>
Cc:        Joe Clarke <marcus@marcuscom.com>, FreeBSD User Questions List <freebsd-questions@FreeBSD.ORG>
Subject:   Re: Gateway? (I read all TFM's - really!)
Message-ID:  <20010924133942.A11203@polands.org>
In-Reply-To: <20010924182733.K977-100000@big>; from root@pukruppa.de on Mon, Sep 24, 2001 at 06:33:08PM %2B0000
References:  <20010924135500.M68286-100000@shumai.marcuscom.com> <20010924182733.K977-100000@big>

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On Mon, Sep 24, 2001 at 06:33:08PM +0000, P. U. (Uli) Kruppa wrote:
> On Mon, 24 Sep 2001, Joe Clarke wrote:
> 
> > Did you put the following in /etc/rc.conf:
> >
> > gateway_enable="YES"
> >
> > on big?
> Yes!
> 
> > What do you have configured on small with reagrds to /etc/resolv.conf
> > (i.e. DNS servers)?
> domain pukruppa.de
> nameserver 192.168.10.1
> 
> (My machines' full names are small.pukruppa.de and
> big.pukruppa.de , these names also can be pinged by both.)
> 
> Uli.
>
big needs to run some type of Network Address Translation in
order to map unroutable IPs (192.168.255.255) to public IP.

You can do this with ipfw and natd or user-land ppp with -nat
argument.

HTH

--
Doug


> 
> > On Mon, 24 Sep 2001, P. U. (Uli) Kruppa wrote:
> >
> > > Please could someone tell me THE TRICK:
> > >
> > > This is my small home-lan:
> > >
> > >
> > >
> > >              rl0     rl1         rl0
> > >     *---------*       *----------*
> > >     |  small  *-------*   big    *----*
> > >     *---------*       *----------*    | tun0
> > > 192.168.10.2	    192.168.10.1      |
> > >                                   *---*-------*
> > > 				  | DSL-modem *-----*
> > > 				  *-----------*     |
> > > 						    |
> > > 						    *
> > >                                                 internet
> > >
> > >
> > > small and big run FreeBSD4.3-RELEASE . small and big can
> > > ping, ftp and telnet each other (by name as well as by
> > > IP-address). big can reach the colourful world of the internet.
> > > But: small cannot get there.
> > > # ping www.freebsd.org
> > > will result in
> > > cannot resolve www.freebsd.org: hostname lookup failure
> > >
> > > I will give you the output of big's and small's
> > > # netstat -r
> > >
> > > big:
> > > Routing tables
> > >
> > > Internet:
> > > Destination        Gateway            Flags    Refs      Use  Netif Expire
> > > default            217.5.116.17       UGSc        4      383   tun0
> > > localhost          localhost          UH          0        0    lo0
> > > 192.168.10         link#2             UC          0        0    rl1
> > > 217.5.116.17       pD90172ED.dip.t-di UH          5        0   tun0
> > >
> > > small:
> > > Routing tables
> > >
> > > Internet:
> > > Destination        Gateway            Flags    Refs      Use  Netif Expire
> > > default            big                UGSc        0        0    rl0
> > > localhost          localhost          UH          0        0    lo0
> > > 192.168.10         link#1             UC          1        0    rl0
> > > big                0:50:fc:3a:f1:1a   UHLW        1       35    rl0   1200
> > >
> > >
> > > Thanks for your help.
> > > (I hope I did not publish any sensitive data with this.)
> > >
> > >
> > > Uli.
> > >

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