使用GRE隧道跨机房转播公网IP段

文章目录[隐藏]

前言

使用场景:在A机房的IP通过GRE隧道路由至B机房的机器中并分配给虚拟机使用

A机器配置



auto vmbr0

iface vmbr0 inet static

        address 【A公网IP】

        gateway 【A公网网关】

        bridge-ports eno1

        bridge-stp off

        bridge-fd 0

        dns-nameservers 1.1.1.1

        post-up ip tunnel add gre_de01 mode gre remote 【B公网IP】 local 【A公网IP】 ttl 255

        pot-up ip link set gre_de01 up

B机器配置



auto vmbr2

iface vmbr2 inet static

        address 【B公网IP】

        gateway 【B公网网关】

        bridge-ports enp0s31f6

        bridge-stp off

        bridge-fd 0

        post-up ip tunnel add gre_de01 mode gre remote 【A公网IP】 local 【B公网IP】 ttl 255

        post-up ip link set gre_de01 up

        post-up ip addr add 172.16.201.1/30 dev gre_de01

        post-up ip rule add from 【网段】.128/26 table 666

        post-up ip route add default dev gre_de01 table 666

auto vmbr0 iface vmbr0 inet static address 10.201.0.32/8 bridge-ports enp1s0 bridge-stp off bridge-fd 0 post-up ip addr add 【网段】.129/26 dev vmbr0 post-up ip route add 【网段】.128/26 dev vmbr0 table 666


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