我有一系列的公共对象，我需要使用别名将它们全部分配到单个物理接口上，但是在添加它们之后，重新启动接口时似乎出现了问题。这是配置
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet static
address 51.x.x.x
netmask 255.255.255.255
network 51.x.x.x
broadcast 51.x.x.x
# dns-* options are implemented by the resolvconf package, if installed
dns-nameservers 8.8.8.8
post-up route add 46.x.x.x dev eth0
post-up route add default gw 46.x.x.x
post-down route del 46.105.116.254 dev eth0
post-down route del default gw 46.x.x.x
auto eth0:1
iface eth0:1 inet static
address 51.x.x.x
netmask 255.255.255.255
network 51.x.x.x
# dns-* options are implemented by the resolvconf package, if installed
dns-nameservers 8.8.8.8
post-up route add 46.x.x.x dev eth0:1
post-up route add default gw 46.x.x.x
post-down route del 46.105.116.254 dev eth0:1
post-down route del default gw 46.x.x.x