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To: "Cambria, Mike" <mcambria@avaya.com>
Cc: "'Joe & Fhe Barbish'" <barbish@a1poweruser.com>,
	FBSD Questions <questions@FreeBSD.ORG>
Subject: Re: IPFW rc.firewall
References: <3A6D367EA1EFD4118C9B00A0C9DD99D7065380@rerun.lucentctc.com>
From: James McNaughton <jtm63@enteract.com>
Date: 30 Dec 2001 16:32:36 -0600
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"Cambria, Mike" <mcambria@avaya.com> writes:

> This is what I use in rc.firewall for a DHCP assigned IPv4 address:
> 
> 
>         onet=`ifconfig vx0 | grep "inet " | awk '{print $6}'`
> 
>         oip=`ifconfig vx0 | grep "inet " | awk '{print $2}'`
> 
>         omask=`ifconfig vx0 | grep "netmask" | awk '{print $4}'`
> 

As an aside, you may be interested in knowing that awk will do its own
regexp pattern matching ala,

        oip=`ifconfig ep1 | awk '/inet / {print $2}'`


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