vi /etc/sysconfig/network-scripts/route6-enp4s0
2409:xxxx:xxxx:fd::/64 via 2409:xxxx:xxxx:fb::1 dev enp4s0
2409:xxxx:xxxx:80::/57 via 2409:xxxx:xxxx:fb::1 dev enp4s0
另一个网卡配置默认路由，该网卡IPV6_DEFAULTGW不配置，采用上面配置文件配置网卡路由：
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=no
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
NAME=enp4s0
DEVICE=enp4s0
ONBOOT=yes
IPV6ADDR=2409:xxxx:xxxx:FB::2/64
IPV6_PRIVACY=no
)
)
