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Date:      Sun, 25 Mar 2001 21:46:56 -0800
From:      Robin Lo <asailcat@yahoo.com>
To:        freebsd-questions@FreeBSD.ORG
Subject:   Re: NAT questions, Please Help
Message-ID:  <5.0.2.1.0.20010325214544.00a47710@pop.mail.yahoo.com>
In-Reply-To: <3ABE153E.55B252CD@iowna.com>
References:  <5.0.2.1.0.20010324185729.00a486a0@pop.mail.yahoo.com>

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Please read through the following messages.  Any help would be much 
appreciated.  Thanks!!!!!


At 10:56 AM 3/25/01 -0500, you wrote:
>Personally, I generally use the kernel ipfilter interface that installs
>with FreeBSD and I'm not terribly familiar with the ipnat system.
>
>-Bill
>
>Robin Lo wrote:
> >
> > Thanks Bill for the quick response.  Your reply solves the problem with the
> > messages being displayed, however I am still unable to get to the internet
> > with my internal boxes.  I can't surf the internet when I configure an
> > internal client with eg 10.0.0.1/8 and with a subnet mask of
> > 255.0.0.0.  Please take a look at my conf files.
> >
> > ***Attached is my rc.conf and ipnat.rules files.  Please take a look and
> > let me know what you find.  Thanks for your help. Robin
> >
> > Port 138 is netbios stuff. Typical Micros~1 broadcast traffic. The
> > solution is to remove all the Windows-based machines from you network.
> > Barring that, I'd program your NAT box with a firewall that rejects or
> > drops those packets. Or you could just ignore it or program ipnat not to
> > complain about it. It's probably just the Micros~1 machines making sure
> > everyone else on the network knows they're there every 15 seconds or
> > whatever the default interval is. I believe on some of the Micros~1
> > boxes you can turn of "lanmanager annoucements" or other such broadcast
> > options to reduce this traffic.
> >
> > -Bill
> >
> > Robin Lo wrote:
> >  >
> >  > Hello,
> >  >
> >  > I have set up FreeBSD 4.2 to be used for NAT.  I have 2 NIC cards
> >  > configured for the network.  The internal network is configured
> >  > with--10.0.0.0/8, and the second NIC with it's ISP default settings.
> >  > The external NIC has been tested.  I am able to ping to the outside
> >  > world.  I support an internal network with an NT2000 Server used for
> >  > DNS, DHCP, and Active Directory services supporting serveral Windows
> >  > /Pro/NT40/ and 98 clients.  When running the NAT box i get
> >  > these messages that appear accross the screen.  It occurs while
> >  > working in vi or any other programs.
> >  >
> >  > March 24  03:36:39 firewall /kernel:  Connection attempt to UDP
> >  > 64.160.131.xx9:138 from 64.160.131.xx8:138
> >  >
> >  > March 24  03:36:39 firewall /kernel:  Connection attempt to UDP
> >  > 10.255.255.255:138 from 10.10.1.1:138
> >  >
> >  > March 24  03:36:39 firewall /kernel:  Connection attempt to UDP
> >  > 10.255.255.255:138 from 10.10.1.3:138
> >  >
> >  > March 24  03:58:38 firewall last message repeated 2 times
> >
> >   ------------------------------------------------------------------------
> >                   Name: rc.conf.new
> >    rc.conf.new    Type: unspecified type (application/octet-stream)
> >               Encoding: base64
> >
> >                   Name: ipnat.rules
> >    ipnat.rules    Type: unspecified type (application/octet-stream)
> >               Encoding: base64


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