auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp auto eth0:1 iface eth0:1 inet static address 10.0.0.50 netmask 255.0.0.0 network 10.0.0.0 #gateway 10.0.0.254 auto eth1 iface eth1 inet dhcp auto eth2 iface eth2 inet dhcp auto ath0 iface ath0 inet dhcp auto wlan0 iface wlan0 inet dhcp ---------- (tdn@homer.) (Sun Apr 01 10:08 ) {P:0 H:376} (~) sudo ifdown eth0:1 ; sudo ifup eth0:1 SIOCSIFFLAGS: Cannot assign requested address (tdn@homer.) (Sun Apr 01 10:08 ) {P:0 H:377} (~)