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Date:      Sat, 9 Nov 2002 10:37:33 +0000
From:      Matthew Seaman <m.seaman@infracaninophile.co.uk>
To:        freebsd-questions <freebsd-questions@FreeBSD.ORG>
Subject:   Re: problems getting 4.7-STABLE gateway to behave
Message-ID:  <20021109103733.GA685@happy-idiot-talk.infracaninophi>
In-Reply-To: <20021109102309.GA3446@freepuppy.bellavista.cz>
References:  <20021109102309.GA3446@freepuppy.bellavista.cz>

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On Sat, Nov 09, 2002 at 11:23:09AM +0100, Roman Neuhauser wrote:

> A picture is worth a thousand words...
> 
>                 internet
>                    |
>                    v
>             eth0/12.34.56.78
>               linux (NAT)
>             eth1/10.1.0.200
>                    |
>                   hub 1 -> Freepuppy de0/10.1.0.10
>                    |
>                    v
>               vx0/10.1.0.1
>                  Lilith
>               ep0/10.0.0.1
>                    |
>                   hub 2
>                    |
>                    v
>               rl0/10.1.0.25
>                  Ishtar
> 
> Lilith, Freepuppy, and that Linux box (called "fw") can ping each other
> w/o problems.  Ishtar can ping (and be pinged by) the windows boxes in
> the same hub.  The problem is that nothing gets from Lilith to the other
> side of hub 2, nor the other way around.

Does ishtar really have 10.1.0.25 as it's rl0 address?  If so, that's
where the problem is.  lilith is expecting that everything on the
10.1.0.0/24 network can be reached through it's vx0 interface.

Try renumbering everything hanging off hub 2 so that they are on the
10.0.0.0/24 network.  Make sure that everything is using a /24
netmask.  If you want ishtar and the other machines to be able to
access the internet, you'll need to add a route on fw telling it that
the 10.0.0.0/24 network can be reached via lilith's vx0 interface:

    route add -net 10.0.0.0/24 10.1.0.1

(or whatever the exact syntax of the linux route command is).

	Cheers,

	Matthew

-- 
Dr Matthew J Seaman MA, D.Phil.                       26 The Paddocks
                                                      Savill Way
                                                      Marlow
Tel: +44 1628 476614                                  Bucks., SL7 1TH UK

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