vi /etc/network/interfaces
# /etc/network/interfaces -- configuration file for ifup(8), ifdown(8)
# The loopback interface
# automatically added when upgrading
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet6 static
address 2001:da8:2:10d::2
netmask 64
up route -A inet6 add default gw 2001:da8:2:10d::1 dev $IFACE
iface eth0 inet static
address 58.1.4.74
netmask 255.255.255.0
up route add default gw 58.1.4.1 dev $IFACE
