3个网络的访问问题

dzbjet

你给个方案吧，如果你可以的话。

ssffzz1

你tunnel的TUN源和TUN目的应该是B网段的地址，这个之间的路由是通过主机路由做通的。\r\nTUNNEL自身的地址段你要重新分配的。\r\nC路由器指定到A的下一条是要指定TUNNEL出口或者TUNNEL对端IP的，而不是B网的地址。同样A也要这么指定的。\r\n\r\n说你搞乱了不是这个方案不行，而是你吧参数的作用搞混了。

ssffzz1

你把隧道内部地址和隧道外部的搞混淆了。

dzbjet

Let\'s say you have 3 networks: Internal networks A and B, and intermediate network C (or let\'s say, Internet). So we have network A:\r\n\r\nnetwork 10.0.1.0\r\nnetmask 255.255.255.0\r\nrouter  10.0.1.1\r\n\r\nThe router has address 172.16.17.18 on network C.\r\n\r\nand network B:\r\n\r\nnetwork 10.0.2.0\r\nnetmask 255.255.255.0\r\nrouter  10.0.2.1\r\n\r\nThe router has address 172.19.20.21 on network C.\r\n\r\nAs far as network C is concerned, we assume that it will pass any packet sent from A to B and vice versa. You might even use the Internet for this.\r\n\r\nHere\'s what you do:\r\n\r\nFirst, make sure the modules are installed:\r\n\r\ninsmod ipip.o\r\ninsmod new_tunnel.o\r\n\r\nThen, on the router of network A, you do the following:\r\n\r\nifconfig tunl0 10.0.1.1 pointopoint 172.19.20.21\r\nroute add -net 10.0.2.0 netmask 255.255.255.0 dev tunl0\r\n\r\nAnd on the router of network B:\r\n\r\nifconfig tunl0 10.0.2.1 pointopoint 172.16.17.18\r\nroute add -net 10.0.1.0 netmask 255.255.255.0 dev tunl0\r\n\r\n\r\n\r\n我没有搞混吧，上面的例子，对于我来说，就是如何\r\nroute add -net default  dev tunl0\r\n\r\n是否可行的问题。