Comment 85 for bug 33968

I still have this problem.
Currently as a workaround I'm doing ifdown/ifup on eth1 in rc.local.

Some info on my system:

kubuntu 7.04 fully updated
dual boot (the other OS is XP)

ADSL modem on eth1 (3Com PCI 3c905B Cyclone 100baseTx)
local net on eth0 (Intel PRO/100)

> uname -a
Linux ra-sun 2.6.20-15-386 #2 Sun Apr 15 07:34:00 UTC 2007 i686 GNU/Linux

> cat /etc/timezone
Europe/Rome

(i.e. GMT+2)

11:05:38> ls -la /var/lib/dhcp3
total 24
drwxr-xr-x 2 dhcpd dhcpd 4096 2007-05-21 11:04 .
drwxr-xr-x 52 root root 4096 2007-05-16 19:30 ..
-rw-r--r-- 1 dhcp root 0 2007-05-02 01:28 dhclient.ath0.leases
-rw-r--r-- 1 dhcp root 0 2006-07-26 12:28 dhclient.eth0.leases
-rw-r--r-- 1 dhcp root 2005 2007-05-21 11:01 dhclient.eth1.leases
-rw-r--r-- 1 dhcp root 396 2007-05-02 01:28 dhclient.eth2.leases
-rw-r--r-- 1 root root 0 2006-05-31 03:16 dhclient.leases
-rw-r--r-- 1 dhcp root 0 2007-05-02 01:28 dhclient.wlan0.leases
-rw-r--r-- 1 dhcpd dhcpd 1777 2007-05-21 11:04 dhcpd.leases
-rw-r--r-- 1 dhcpd dhcpd 1777 2007-05-21 10:38 dhcpd.leases~

11:08:25> grep dhcp-lease-time /var/lib/dhcp3/dhclient.eth1.leases
  option dhcp-lease-time 300;
  option dhcp-lease-time 300;
  option dhcp-lease-time 300;
  option dhcp-lease-time 300;
  option dhcp-lease-time 300;

11:08:28> grep dhcp-renewal-time /var/lib/dhcp3/dhclient.eth1.leases
<empty output>

11:08:39> grep dhcp-rebinding-time /var/lib/dhcp3/dhclient.eth1.leases
<empty output>