iface lo inet static address 193.31.7.1/24 iface lo inet6 static address 2a02:158:ffff:deb::1/64 # debian iface lo inet static address 193.31.7.2/24 iface lo inet6 static address 2a02:158:ffff:deb::2/64 # security iface lo inet static address 193.31.7.3/24 iface lo inet6 static address 2a02:158:ffff:deb::3/64