Re: Get list of ethernet devices

On Mon, 7 Nov 2011, Michael Ross wrote:

> I'm setting up a system on an external USB drive,
> serving as fallback in case of a server failure:
>
> Customer takes USB drive, plugs it into any of his PCs and boots of it.
>
> Now I am looking for a good method to configure the network:
>
> I could just start dhclient on any NIC which could possibly be there,
> thus cramming rc.conf with
> 	ifconfig_em0="DHCP"
> 	ifconfig_em1="DHCP"
> 	ifconfig_fxp0="DHCP"
> and so on.
>
> Or I could grep ifconfig or dmesg output for ethernet interfaces and dhclient 
> these.
>
> Both sound like a very messy solution.
>
> So I would step beyond my current area of expertise, grep some source from 
> sysinstall, bsdinstall or somewhere and do it in C.
> But I'm kind of hoping anybody can point me to a readymade solution yet 
> unknown to me.

ifconfig_DEFAULT="DHCP"

It's not well documented.  I'd also suggest using SYNCDHCP as more 
likely to work predictably on unknown equipment.
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