Subject: Re: thinkpad?
To: George Michaelson <>
From: Steven M. Bellovin <>
List: current-users
Date: 05/16/2004 21:22:16
In message <20040517103421.0a9547fa@garlic>, George Michaelson writes:
>On Sun, 16 May 2004 19:27:44 -0500 David Young <> wrote:
>>On Sun, May 16, 2004 at 04:32:09PM -0700, Simon Gerraty wrote:
>>> I noticed though that dhclient couldn't get a lease using wm0.
>>> In fact even configuring it manually (after killing off dhclient)
>>> I could not get any traffic out of it.
>>> BUT as soon as I ran tcpdump on it - it started working.
>>> This hints that there's some extra initialization step needed.
>>> (hopefully putting it into/outof promiscuous mode isn't it ;-)
>>dhclient does not put the interface into promiscuous mode?
>>David Young             OJC Technologies
>>      Urbana, IL * (217) 278-3933
>I noticed last night that dhclient <if> appeared to wake up *ALL* interfaces
>on my X31. I was testing an 802.11 router, and had to unplug my wm0 to stop it
>being ifconfig wm0 up by dhclient, even when I called it with ath0.

Do you have wm0 in your dhclient.conf?  If so, that will override an 
interface on the command line, in my experience.  (I'm not sure what 
happens if there's something in dhclient.leases but not mentioned on 
the command line.)

		--Steve Bellovin,