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Date:      Fri, 26 Sep 2003 10:14:52 +0400 (MSD)
From:      Alexei Evdokimov <alexei@pptus.ru>
To:        freebsd-isp@freebsd.org
Subject:   Re: static ARP
Message-ID:  <20030926095646.E96986@avalon.pptus.ru>
In-Reply-To: <4878.62.142.81.6.1064386090.squirrel@redbull.tiscali.fi>
References:  <4878.62.142.81.6.1064386090.squirrel@redbull.tiscali.fi>

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On Wed, 24 Sep 2003 vezku@surfeu.fi wrote:

> I was thinking about the following scenario. I have one interface in my
> BSD router that serves a private network.
>
> Is it possible to disable ARP on that interface and make static ARP
> entries on router? I'm looking for a way to allow only certain MAC
> addresses to access via this interface. I do know it's only false
> security, but it would prevent people adding easily unauthorized
> computers. And since there are only about 10 comps in this particular
> network, maintaining static ARP entries would not be worksome.
>
> I would not like to get into bridging if this works.

Parameter -arp will disable ARP on the interface:

    ifconfig ... -arp

To set static ARP table write authorized pairs ip:mac in a file
and load it it in the table:

    arp -f file

-- 
Alexei Evdokimov
alexei@pptus.ru



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