linux/" style="color: rgb(0, 136, 209); text-decoration-line: none;">Linux多可支持255个路由表，查看当前路由表：
| mportant; padding: 0px !important; outline: 0px !important; border-width: 0px !important; border-style: initial !important; border-color: initial !important; border-radius: 0px !important; background: none !important; inset: auto !important; float: none !important; line-height: 1.1em !important; overflow: visible !important; position: static !important; vertical-align: baseline !important; box-sizing: content-box !important; font-size: 1em !important; min-height: auto !important; color: rgb(175, 175, 175) !important;" width="NaN" height="NaN"> 1 2 3 4 5 | ip rule ls0: from all lookup local32766: from all lookup main 32767: from all lookup default |
根据源IP或目标IP选择路由表：
1 2 3 4 5 6 7 8 | echo '252 onovps'>>/etc/iproute2/rt_tables #新建路由表ID与名称映射ip rule add from 192.168.1.5 table onovps pref 32764#新建路由表onovps，优先级32764ip route add default via 192.168.1.2 dev pppoe-wan2 table onovps#新建路由表onovps默认路由项ip route flush cache#刷新路由缓存 |
基于iptables标记选择路由表：
1 2 3 4 5 6 | ip rule add fwmark 20 table onovps pref 32763#新建路由表，防火墙标记20的数据ip route add default via 192.168.1.2 dev pppoe-wan2 table onovps#默认路由iptables -t mangle -APREROUTING -p udp --dport 53 -j MARK --set-mark 20#标记数据 |
查看当前路由表：
1 2 3 4 5 6 | ip rule ls0: from all lookup local 32764: from 192.168.1.5 lookup onovps32765: from all lookup main 32766: from all lookup main 32767: from all lookup default |
查看路由表onovps下路由项：
1 2 | ip route ls table onovpsdefault via 192.168.1.2 dev eth1 |
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