NM 0.7 and 0.7.1 handled corretly, but after fresh install to Ubuntu Karmic NM 0.8 (0.8~a~git.20091013t193206.679d548-0ubuntu1) stops managing wired ethernet when using vlan interfaces with ifup.

1. NM0.8 managing eth0 corretly (dhcp - 10.0.0.26/24)
2. modprobe 8021q still ok
3. edit /etc/network/intefaces:
    iface eth0.200 inet static
        address 10.26.0.26
        netmask 255.255.0.0
4. ifup eth0.200 (brings vlan200 and set static ip for it)
5. NM0.8 lost wired connection and device unmanaged
6. ifdown eth0.200 -> NM0.8 works on eth0 again.

If I create vlan by hand (without interfaces file and ifup) it works fine.
   3. edit /etc/network/intefaces remove all line (eth0.200) except:
 auto lo
 iface lo inet loopback
   4. service network-manager restart (for reload the config file)
   5. vconfig add eth0 200
      ifconfig eth0.200 inet 10.26.0.26/16
   6. NM 0.8 still handle eth0 corretly and the manually created eth0.200 works fine...