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Date:      Sat, 15 Mar 2003 14:44:48 -0500
From:      Bill Moran <wmoran@potentialtech.com>
To:        "W. J. Williams" <will@willardjwilliams.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: five networks
Message-ID:  <3E7382B0.9040102@potentialtech.com>
In-Reply-To: <20030315193305.97408.qmail@web13506.mail.yahoo.com>
References:  <20030315193305.97408.qmail@web13506.mail.yahoo.com>

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W. J. Williams wrote:
> Bill Moran,
> 
> New people to this stuff are very fortunate to have people like you lend
> their expertise...especially to point out what we do and don't
> understand...the rest of you newbies out there, this guy is aces.
> 
> Bill, please learn not to slam, but to help.

Huh?
I spent a considerable amount of time crafting that reply.  If it didn't
help, I apoligize.

> 
> Will
> 
> --- Bill Moran <wmoran@potentialtech.com> wrote:
> 
>>W. J. Williams wrote:
>>
>>>why isn`t this working:
>>>
>>>1. I would like to configure a separate network on five freebsd boxes.
>>>
>>>192.168.0
>>>192.168.1
>>>192.168.2
>>>192.168.3
>>>192.168.4
>>>
>>>
>>>2.  My DSL router has network 192.168.0, I also have one of my fbsd
>>
>>boxes
>>
>>>in this network (192.168.0.2)
>>>
>>>3.  I can add the other machines to the 192.168.0 network, no problem,
>>>using default router 192.168.0.1, broadcast 255.255.255.0,
>>>
>>>4.  I tried to configure 192.168.2.1 on one box, using
>>>gateway_enable="YES", router_enable="YES",
>>>defaultrouter=192.168.2.1....doesnt work.
>>>
>>>what am i doing wrong in getting this box up and running?
>>
>>You don't understand routing.
>>If you ifconfig a box to be 192.168.2.1/24 and then set the default
>>router
>>to be 192.168.2.1: the machine sends all traffic not destined for
>>192.168.2.0/24 to itself to be routed.  However, it didn't know how
>>to route the traffic the first time, thus it isn't going to work the
>>second time either.  One good rule to remember is that a default gateway
>>should always be a different machine, and one that has _more_ routing
>>capability that the one you're configuring.
>>If I understand your description correctly, the default gateway should
>>be 192.168.0.1 for all these machines.
>>I can only assume that you're configuring the system in such a manner
>>for experimental purposes, as I can see no reason for such a
>>configuration
>>in practice.
>>You leave netmasks off in your description, but I'm assuming that you're
>>using /24 for everything.  This means you'll have to put static routes
>>in
>>each machine to allow them to get to 192.168.0.1, as they'll have no way
>>to automatically reach that machine.  The default router will also need
>>routes manually configured in order to be able to communicate back to
>>them
>>(unless it's running some sort of route discovery program).
>>
>>If you're not configuring the network like this for experimental
>>reasons,
>>then you're configuring it very poorly.  A small network like you
>>describe should have all the machines on the same subnet: 192.168.0.2,
>>192.168.0.3, 192.168.0.4, etc
>>
>>-- 
>>Bill Moran
>>Potential Technologies
>>http://www.potentialtech.com
>>
> 
> 
> 
> =====
> Will Williams
> 
> 


-- 
Bill Moran
Potential Technologies
http://www.potentialtech.com


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