two NICs, one dhclient

[M. Warner Losh]

In message: <20040322182954.S90677 at xeon.unixathome.org>
            Dan Langille <dan at langille.org> writes:
: My IBM ThinkPad T22 is running FreeBSD 5.2.1 and has a built-in NIC (fxp0)
: and a PCMCIA wi0.
: 
: I have 'ifconfig_fxp0="DHCP"' in /etc/rc.conf.  What I'd like to do is
: have dhclient run in wi0 if it is present and then not on fxp0.  But if no
: wi0, then run dhclient on fxp0.
: 
: devd.conf was mentioned to me as one way to acheive this. Does anyone have
: a working configuration?

You'd need a replacement script for the /etc/pccard_ether script that
the default devd.conf runs.  You could do something like:

case $1 in
fxp0)	maybe_dhclient fxp0;;
wi0)	dhclient wi0;;
esac

maybe_dhclient()
{
	if ifconfig wi0 > /dev/null 2&>1; then
		exit
	fi
	dhclient $1
}

Warner