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Date:      Wed, 21 Jan 2009 18:33:00 +0100
From:      Frank Staals <frankstaals@gmx.net>
To:        Peter Steele <psteele@maxiscale.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Do I need to run netif stop/start if IP is changed?
Message-ID:  <49775C4C.2010305@gmx.net>
In-Reply-To: <2ACA3DE8F9758A48B8BE2C7A847F91F247A4BB@polaris.maxiscale.com>
References:  <2ACA3DE8F9758A48B8BE2C7A847F91F247A4BB@polaris.maxiscale.com>

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Peter Steele wrote:
> We have systems that upon initial configuration have no IP addresses
> assigned. Their rc.conf entries look like this:
>
>  
>
>   
<snip>
> and also executes explicit ifconfig and route add commands that match
> the entries in rc.conf. 
>
>  
>
> The question is, should we also execute a netif stop/start sequence when
> this IP/router information is assigned? Are there other services that
> should also be stopped/restarted when the IP is set? Ideally, we want to
> avoid having to reboot the box to set the IP as we are doing.
>
>   
As far as I know you do not have to, changing interface settings with 
ifconfig should be enough. I used to have a script to switch between LAN 
and WLAN on my laptop which used only ifconfig <ip>, route flush and 
route add default <routerip>.  Only thing that comes to mind that could 
go wrong if daemons are configured to listen on a specifc ip instead of  
(default) configs with :<port>.

Regards,

-- 

- Frank




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