为传出流量配置专用网络网关

Question

我在专用网络中有2台服务器，其中一台具有公共ip：

• “ lb”具有2个带有1个公共ip和1个私有ip的接口（ens3 51.83.14.172和ens4 192.168.0.1）

• “ node01”具有1个私有ip（ens1 192.168.0.12）

我想将节点1的传出流量路由“ lb”

node01 ens4 =>磅ens4 =>磅ens 3 =>互联网

这是我的配置，但是我可以从node01 ping Internet

服务器磅

ifconfig
ens3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 51.83.14.172  netmask 255.255.255.255  broadcast 0.0.0.0
        inet6 fe80::f816:3eff:fe50:df72  prefixlen 64  scopeid 0x20<link>
        ether fa:16:3e:50:df:72  txqueuelen 1000  (Ethernet)
        RX packets 164514  bytes 19045889 (19.0 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 149861  bytes 10579204 (10.5 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ens4: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.1  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 fe80::f816:3eff:fe18:e04  prefixlen 64  scopeid 0x20<link>
        ether fa:16:3e:18:0e:04  txqueuelen 1000  (Ethernet)
        RX packets 2947  bytes 411124 (411.1 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 3766  bytes 269126 (269.1 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 533  bytes 63226 (63.2 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 533  bytes 63226 (63.2 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

/etc/netplan/50-cloud-init.yaml

network:
    version: 2
    ethernets:
        ens3:
            dhcp4: true
        ens4:
            addresses: [192.168.0.1/24]
            nameservers:
              addresses: [8.8.8.8,8.8.4.4]
            dhcp4: no

服务器node01

ifconfig
ens4: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.12  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 fe80::f816:3eff:fea4:3df7  prefixlen 64  scopeid 0x20<link>
        ether fa:16:3e:a4:3d:f7  txqueuelen 1000  (Ethernet)
        RX packets 3588  bytes 283573 (283.5 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1628  bytes 282583 (282.5 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 522  bytes 41957 (41.9 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 522  bytes 41957 (41.9 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0


/etc/netplan/50-cloud-init.yaml

network:
    version: 2
    ethernets:
        ens4:
            addresses: [192.168.0.12/24]
            nameservers:
              addresses: [8.8.8.8]
            dhcp4: no
            gateway4: 192.168.0.1