Re: network interface monitoring?

On Wed, Jan 23, 2008 at 04:50:22PM -0500, Yousif Hassan wrote:
Net-gurus:

I hope this is the right list to write to regarding this question (feel
free to redirect me to ports@ if that sounds more appropriate).

I'm looking for a facility to automatically detect network interface
carrier state changes (a network cable gets plugged/unplugged; a
laptop's wireless button gets turned on/off; etc.) and then to run a
user script on it. The use case, fairly obvious I guess, is to execute
ifconfig and/or DHCP commands upon carrier detection; this will make my
laptop that much more useful. ;)

devd already does a lot of this and is used to control dhclient
execution. ifstated from openbsd is also in ports.

-- Brooks

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