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Date:      Sat, 7 Jul 2007 08:04:17 -0500
From:      Eric Crist <mnslinky@gmail.com>
To:        Daniel A. A. <alive@dienub.org>
Cc:        ray@stilltech.net, freebsd-questions@freebsd.org
Subject:   Re: one server with two ip address
Message-ID:  <9DF80946-8AC5-469E-B870-2046411DB930@gmail.com>
In-Reply-To: <468EDCA5.4050601@dienub.org>
References:  <200707061144.17748.ray@stilltech.net> <468EDCA5.4050601@dienub.org>

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On Jul 6, 2007, at 7:21 PMJul 6, 2007, Daniel A. A. wrote:

> Ray wrote:
>> Hello all,
>> I have a production server with two network interfaces.  The  
>> primary interface is up and running. (DHCP from the local Telco)  
>> The second interface is installed, but not yet active. It will run  
>> on a local network only. Can I do something as simple as ifconfig   
>> nfe1 192.168.0.100
>> to give myself access to the internal network? As this is a  
>> production server, I don't want to just play with it too much.   
>> Thanks,
>> Ray
> You'd have to
> ifconfig nfe1 192.168.0.100 netmask ###.###.###.###
> But don't worry - If you mistype, or make some other error (Like  
> forgetting to specify the gateway for the connection), nothing  
> happens. You'll just get an error printed to stdout and the netif  
> will remain untouched.
>

You can shorten that command using CIDR notation as well:

ifconfig nfe1 192.168.0.100/24

Eric Crist



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