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Date:      Wed, 11 Mar 1998 21:18:32 -0800 (PST)
From:      Doug White <dwhite@gdi.uoregon.edu>
To:        "SPAM..." <jlueck@mit.edu>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: natd and cable modems
Message-ID:  <Pine.BSF.3.96.980311211734.16485T-100000@gdi.uoregon.edu>
In-Reply-To: <199803112129.QAA31478@BULLDOZER.MIT.EDU>

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On Wed, 11 Mar 1998, SPAM... wrote:

> I'm currently trying to set up a local area LAN which uses a single
> computer connected to a cable modem to do IP masquerading.  I've read
> the natd man page and think that I have everything set up correctly.
> Yet, nothing on the local network is getting or receiving packets.  My
> local network consists of the freeBSD machine, and 3 WinNT machines
> connected through the LAN.

I assume you've set up the ipfw/nat combination as described in the
Handbook.  You can't Just Run natd; it needs to know what to translate.

> Here's one specific question...should the freeBSD machine be able to
> 'ping' the other machines on the local network?  Right now, I'm not able
> to.  Each local machine has a 10.x.x.x IP address, and their names are
> matched to their IPs in /etc/hosts.  Any idea what could be wrong?

You can't directly contact any machine behind the firewall; they don't
have real IPs.  You should be able to ping out though.

Doug White                              | University of Oregon  
Internet:  dwhite@resnet.uoregon.edu    | Residence Networking Assistant
http://gladstone.uoregon.edu/~dwhite    | Computer Science Major



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