Out of the box Debian 4.0 installation.

/etc/network/interfaces
-------------------------------
allow-hotplug eth0
iface eth0 inet dhcp
-------------------------------

Unplugging my network cable I get the following output:
e100: eth0: e100_watchdog: link down

Plugging it in again recognized that it's connected in, but the IP will not
renew.  On reboot it always renews the IP correctly.

Why does it not renew the IP automatically?  Should I be using something
other than "allow-hotplug"?

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