root@ts7000:/#  /etc/init.d/networking restart
Setting up IP spoofing protection: rp_filter.
Enabling packet forwarding...done.
Reconfiguring network interfaces.../etc/network/interfaces:24: option with empty value
ifdown: couldn't read interfaces file "/etc/network/interfaces"
/etc/network/interfaces:24: option with empty value
ifup: couldn't read interfaces file "/etc/network/interfaces"
done.
root@ts7000:/# vi /etc/network/interfaces
# Used by ifup(8) and ifdown(8). See the interfaces(5) manpage or
# /usr/share/doc/ifupdown/examples for more information.

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp

#iface eth0 inet static
#       address 192.168.1.138
#       network 192.168.1.0
#       netmask 255.255.255.0
#       broadcast 192.168.1.255

iface eth1 inet dhcp

#iface wlan0 inet static
#        address 192.168.0.138
#        network 192.168.0.0
#        netmask 255.255.255.0
#        broadcast 192.168.0.255

/etc/network/interfaces: unmodified: line 1