tying "dhcpcd" into "ifconfig" up and down

Riddick · 09-08-2005, 12:49 PM

Hi, sorry about the confusing thread title,
I would like "dhcpcd" to be called when I do "ifconfig eth0 up"
and I would like it to be killed when I call "ifconfig eth0 down"

I have slackware current, kde 3.4.2...

Thanks for any help,
Riddick

Matir · 09-08-2005, 01:01 PM

Why not create an ifup/ifdown script like debian has?

Code:

#!/bin/bash
#ifup
ifconfig $1 up
dhcpcd $1

Code:

#!/bin/bash
#ifdown
kill `cat var/run/dhcpcd-$1.pid`
ifconfig $1 down

Error checking for $1 and so forth could also be added, but I'm sure you get the idea.

Riddick · 09-08-2005, 01:02 PM

hello again! thanks a lot! I'll try that!

Matir · 09-08-2005, 01:07 PM

No problem. Obviously, then, you'll need to do 'ifup eth0' and 'ifdown eth0', but hey, that's even shorter than the ifconfig commands.

homey · 09-08-2005, 01:31 PM

How about using the dhclient command?
dhclient -r eth0 ( to release it )
dhclient eth0 ( to grab an ip address )

Matir · 09-08-2005, 01:42 PM

The OP was trying to get this to work with dhcpcd, not dhclient. Though dhcpcd supports -k which shuts down the daemon after sending a release.

Riddick · 09-10-2005, 06:00 PM

excellent... my shelling skills are being tested for the input
validation .. I might tie down the scripts to just be eth0
and forget it all!

thanks for everything!

Riddick

Matir · 09-10-2005, 07:12 PM

You know, if it is a script only to be used by you, I wouldn't worry too much about input validation. I know, famous last words, but it seems to work for me.

Riddick · 09-10-2005, 07:14 PM

yeah exactly...