linux 策略路由问题!!!

bfz814

规则如下：\r\n  ip route add 10.10.0.0/16 via 10.254.254.1 table int1 proto static \r\n  ip route add throw 0/0 table int1 proto static \r\n  ip route add 172.18.0.0/16 via 172.17.1.1 table int2 proto static \r\n  ip route add throw 0/0 table int2 proto static \r\n  ip route add 0/0 via 172.17.1.254 table main proto static \r\n  ip rule add pref 15000 table int1 iif eth1 \r\n  ip rule add pref 15001 table int2 iif eth2 \r\n  ip rule add pref 15002 to 10.10.0.0/16 table int1 \r\n  ip rule add pref 15003 to 172.18.0.0/16 table int2\r\n\r\nip route add throw 0/0 table int1 proto static   大侠 这句是什么意思？

ssffzz1

throw\r\n\r\nThe throw route type is a convenient route type which causes a route lookup in a routing table to fail, returning the routing selection process to the RPDB. This is useful when there are additional routing tables. Note that there is an implicit throw if no default route exists in a routing table, so the route created by the first command in the example is superfluous, although legal. \r\n\r\nExample 4.14. throw route typesip route add throw default\r\nip route add throw 10.79.0.0/16\r\nip route add throw 172.16.0.0/12\r\n              \r\n\r\n\r\nThe power of these route types when combined with the routing policy database can hardly be understated. All of these route types can be used without the RPDB, although the throw route doesn\'t make much sense outside of a multiple routing table installation.