浮动静态路由***

3.0.5


实验：浮动静态路由
在看np的高级路由的时候书中有一个浮动静态路由的实验，我用远程的台子做了一下这个实验。
拓扑图
                               (r2)
                                /     \
                              /   ;       \
                            /     ;         \
                         (r1)--------(r3)
r1 s1/0:1.1.1.1/24 s2/0:10.1.1.1/24
r2 s1/0:2.2.2.2/24 s2/0:1.1.1.2/24
r3 s1/0:10.1.1.3/24 s2/0:2.2.2.3/24
配置如下：
r1
hostname 1
!
interface Serial1/0
 ip address 1.1.1.1 255.255.255.0
 clockrate 64000
!
interface Serial2/0
 ip address 10.1.1.1 255.255.255.0
!
ip route 2.0.0.0 255.0.0.0 10.1.1.3
r2
hostname 2
!
interface Serial1/0
 ip address 2.2.2.2 255.255.255.0
 clockrate 64000
!
interface Serial2/0
 ip address 1.1.1.2 255.255.255.0
!
ip route 10.0.0.0 255.0.0.0 1.1.1.1
ip route 10.0.0.0 255.0.0.0 2.2.2.3 10       /手动添加的一条浮动路由，管理距离为10/
r3
hostname 3
!
interface Serial1/0
 ip address 10.1.1.3 255.255.255.0
 clockrate 64000
!
interface Serial2/0
 ip address 2.2.2.3 255.255.255.0
!
ip classless
ip route 1.0.0.0 255.0.0.0 10.1.1.1
我从r2上ping10.1.1.3,为了更好的看效果我添加了访问控制列表。
r2的路由表:
2#show ip route 
     1.0.0.0/24 is subnetted, 1 subnets
C       1.1.1.0 is directly connected, Serial2/0
     2.0.0.0/24 is subnetted, 1 subnets
C       2.2.2.0 is directly connected, Serial1/0
S    10.0.0.0/8 [1/0] via 1.1.1.1
2(config)#access-list 101 permit ip host 1.1.1.2 host 10.1.1.3
2(config)#access-list 101 permit ip any 
2#debug ip pac 101
debug输出为:
*Jul 28 06:51:20.367: IP: s=1.1.1.2 (local), d=10.1.1.3 (Serial2/0), len 100, sending
*Jul 28 06:51:20.407: IP: s=10.1.1.3 (Serial2/0), d=1.1.1.2 (Serial2/0), len 100, rcvd 3
*Jul 28 06:51:20.407: ICMP: echo reply rcvd, src 10.1.1.3, dst 1.1.1.2
*Jul 28 06:51:20.435: IP: s=1.1.1.2 (local), d=10.1.1.3 (Serial2/0), len 100, sending
*Jul 28 06:51:20.475: IP: s=10.1.1.3 (Serial2/0), d=1.1.1.2 (Serial2/0), len 100, rcvd 3
*Jul 28 06:51:20.475: ICMP: echo reply rcvd, src 10.1.1.3, dst 1.1.1.2
*Jul 28 06:51:20.487: IP: s=1.1.1.2 (local), d=10.1.1.3 (Serial2/0), len 100, sending
*Jul 28 06:51:20.527: IP: s=10.1.1.3 (Serial2/0), d=1.1.1.2 (Serial2/0), len 100, rcvd 3
*Jul 28 06:51:20.527: ICMP: echo reply rcvd, src 10.1.1.3, dst 1.1.1.2
*Jul 28 06:51:20.547: IP: s=1.1.1.2 (local), d=10.1.1.3 (Serial2/0), len 100, sending
*Jul 28 06:51:20.595: IP: s=10.1.1.3 (Serial2/0), d=1.1.1.2 (Serial2/0), len 100, rcvd 3
*Jul 28 06:51:20.595: ICMP: echo reply rcvd, src 10.1.1.3, dst 1.1.1.2
*Jul 28 06:51:20.615: IP: s=1.1.1.2 (local), d=10.1.1.3 (Serial2/0), len 100, sending
*Jul 28 06:51:20.675: IP: s=10.1.1.3 (Serial2/0), d=1.1.1.2 (Serial2/0), len 100, rcvd 3
*Jul 28 06:51:20.675: ICMP: echo reply rcvd, src 10.1.1.3, dst 1.1.1.2
注意到是从s2/0出去的.
现在我们在r1上把s1/0shutdown掉
r2的路由表:
2#show ip route
     2.0.0.0/24 is subnetted, 1 subnets
C       2.2.2.0 is directly connected, Serial1/0
S    10.0.0.0/8 [10/0] via 2.2.2.3
r2上的访问控制列表为:
2(config)#access-list 102 permit ip host 1.1.1.2 host 10.1.1.3
2(config)#access-list 102 permit ip any 
2#debug ip pac 102
debug输出为:
*Jul 28 06:58:22.775: IP: s=2.2.2.2 (local), d=10.1.1.3 (Serial1/0), len 100, sending
*Jul 28 06:58:22.815: IP: s=10.1.1.3 (Serial1/0), d=2.2.2.2 (Serial1/0), len 100, rcvd 3
*Jul 28 06:58:22.815: ICMP: echo reply rcvd, src 10.1.1.3, dst 2.2.2.2
*Jul 28 06:58:22.847: IP: s=2.2.2.2 (local), d=10.1.1.3 (Serial1/0), len 100, sending
*Jul 28 06:58:22.887: IP: s=10.1.1.3 (Serial1/0), d=2.2.2.2 (Serial1/0), len 100, rcvd 3
*Jul 28 06:58:22.887: ICMP: echo reply rcvd, src 10.1.1.3, dst 2.2.2.2
*Jul 28 06:58:22.907: IP: s=2.2.2.2 (local), d=10.1.1.3 (Serial1/0), len 100, sending
*Jul 28 06:58:22.947: IP: s=10.1.1.3 (Serial1/0), d=2.2.2.2 (Serial1/0), len 100, rcvd 3
*Jul 28 06:58:22.947: ICMP: echo reply rcvd, src 10.1.1.3, dst 2.2.2.2
*Jul 28 06:58:22.955: IP: s=2.2.2.2 (local), d=10.1.1.3 (Serial1/0), len 100, sending
*Jul 28 06:58:23.007: IP: s=10.1.1.3 (Serial1/0), d=2.2.2.2 (Serial1/0), len 100, rcvd 3
*Jul 28 06:58:23.007: ICMP: echo reply rcvd, src 10.1.1.3, dst 2.2.2.2
*Jul 28 06:58:23.015: IP: s=2.2.2.2 (local), d=10.1.1.3 (Serial1/0), len 100, sending
*Jul 28 06:58:23.067: IP: s=10.1.1.3 (Serial1/0), d=2.2.2.2 (Serial1/0), len 100, rcvd 3
*Jul 28 06:58:23.067: ICMP: echo reply rcvd, src 10.1.1.3, dst 2.2.2.2
可以看出ping是从s1/0出去的,说明了浮动路由起了作用.

workatlab ITAA会员注册: 2006-6月-03 所在地: India 在线状态: 发帖数: 321	主题: 浮动静态路由发表: 2006-7月-28 19:47
	实验：浮动静态路由在看np的高级路由的时候书中有一个浮动静态路由的实验，我用远程的台子做了一下这个实验。拓扑图 (r2) / \ / ; \ / ; \ (r1)--------(r3) r1 s1/0:1.1.1.1/24 s2/0:10.1.1.1/24 r2 s1/0:2.2.2.2/24 s2/0:1.1.1.2/24 r3 s1/0:10.1.1.3/24 s2/0:2.2.2.3/24 配置如下： r1 hostname 1 ! interface Serial1/0 ip address 1.1.1.1 255.255.255.0 clockrate 64000 ! interface Serial2/0 ip address 10.1.1.1 255.255.255.0 ! ip route 2.0.0.0 255.0.0.0 10.1.1.3 r2 hostname 2 ! interface Serial1/0 ip address 2.2.2.2 255.255.255.0 clockrate 64000 ! interface Serial2/0 ip address 1.1.1.2 255.255.255.0 ! ip route 10.0.0.0 255.0.0.0 1.1.1.1 ip route 10.0.0.0 255.0.0.0 2.2.2.3 10 /手动添加的一条浮动路由，管理距离为10/ r3 hostname 3 ! interface Serial1/0 ip address 10.1.1.3 255.255.255.0 clockrate 64000 ! interface Serial2/0 ip address 2.2.2.3 255.255.255.0 ! ip classless ip route 1.0.0.0 255.0.0.0 10.1.1.1 我从r2上ping10.1.1.3,为了更好的看效果我添加了访问控制列表。 r2的路由表: 2#show ip route 1.0.0.0/24 is subnetted, 1 subnets C 1.1.1.0 is directly connected, Serial2/0 2.0.0.0/24 is subnetted, 1 subnets C 2.2.2.0 is directly connected, Serial1/0 S 10.0.0.0/8 [1/0] via 1.1.1.1 2(config)#access-list 101 permit ip host 1.1.1.2 host 10.1.1.3 2(config)#access-list 101 permit ip any 2#debug ip pac 101 debug输出为: Jul 28 06:51:20.367: IP: s=1.1.1.2 (local), d=10.1.1.3 (Serial2/0), len 100, sending Jul 28 06:51:20.407: IP: s=10.1.1.3 (Serial2/0), d=1.1.1.2 (Serial2/0), len 100, rcvd 3 Jul 28 06:51:20.407: ICMP: echo reply rcvd, src 10.1.1.3, dst 1.1.1.2 Jul 28 06:51:20.435: IP: s=1.1.1.2 (local), d=10.1.1.3 (Serial2/0), len 100, sending Jul 28 06:51:20.475: IP: s=10.1.1.3 (Serial2/0), d=1.1.1.2 (Serial2/0), len 100, rcvd 3 Jul 28 06:51:20.475: ICMP: echo reply rcvd, src 10.1.1.3, dst 1.1.1.2 Jul 28 06:51:20.487: IP: s=1.1.1.2 (local), d=10.1.1.3 (Serial2/0), len 100, sending Jul 28 06:51:20.527: IP: s=10.1.1.3 (Serial2/0), d=1.1.1.2 (Serial2/0), len 100, rcvd 3 Jul 28 06:51:20.527: ICMP: echo reply rcvd, src 10.1.1.3, dst 1.1.1.2 Jul 28 06:51:20.547: IP: s=1.1.1.2 (local), d=10.1.1.3 (Serial2/0), len 100, sending Jul 28 06:51:20.595: IP: s=10.1.1.3 (Serial2/0), d=1.1.1.2 (Serial2/0), len 100, rcvd 3 Jul 28 06:51:20.595: ICMP: echo reply rcvd, src 10.1.1.3, dst 1.1.1.2 Jul 28 06:51:20.615: IP: s=1.1.1.2 (local), d=10.1.1.3 (Serial2/0), len 100, sending Jul 28 06:51:20.675: IP: s=10.1.1.3 (Serial2/0), d=1.1.1.2 (Serial2/0), len 100, rcvd 3 Jul 28 06:51:20.675: ICMP: echo reply rcvd, src 10.1.1.3, dst 1.1.1.2 注意到是从s2/0出去的. 现在我们在r1上把s1/0shutdown掉 r2的路由表: 2#show ip route 2.0.0.0/24 is subnetted, 1 subnets C 2.2.2.0 is directly connected, Serial1/0 S 10.0.0.0/8 [10/0] via 2.2.2.3 r2上的访问控制列表为: 2(config)#access-list 102 permit ip host 1.1.1.2 host 10.1.1.3 2(config)#access-list 102 permit ip any 2#debug ip pac 102 debug输出为: Jul 28 06:58:22.775: IP: s=2.2.2.2 (local), d=10.1.1.3 (Serial1/0), len 100, sending Jul 28 06:58:22.815: IP: s=10.1.1.3 (Serial1/0), d=2.2.2.2 (Serial1/0), len 100, rcvd 3 Jul 28 06:58:22.815: ICMP: echo reply rcvd, src 10.1.1.3, dst 2.2.2.2 Jul 28 06:58:22.847: IP: s=2.2.2.2 (local), d=10.1.1.3 (Serial1/0), len 100, sending Jul 28 06:58:22.887: IP: s=10.1.1.3 (Serial1/0), d=2.2.2.2 (Serial1/0), len 100, rcvd 3 Jul 28 06:58:22.887: ICMP: echo reply rcvd, src 10.1.1.3, dst 2.2.2.2 Jul 28 06:58:22.907: IP: s=2.2.2.2 (local), d=10.1.1.3 (Serial1/0), len 100, sending Jul 28 06:58:22.947: IP: s=10.1.1.3 (Serial1/0), d=2.2.2.2 (Serial1/0), len 100, rcvd 3 Jul 28 06:58:22.947: ICMP: echo reply rcvd, src 10.1.1.3, dst 2.2.2.2 Jul 28 06:58:22.955: IP: s=2.2.2.2 (local), d=10.1.1.3 (Serial1/0), len 100, sending Jul 28 06:58:23.007: IP: s=10.1.1.3 (Serial1/0), d=2.2.2.2 (Serial1/0), len 100, rcvd 3 Jul 28 06:58:23.007: ICMP: echo reply rcvd, src 10.1.1.3, dst 2.2.2.2 Jul 28 06:58:23.015: IP: s=2.2.2.2 (local), d=10.1.1.3 (Serial1/0), len 100, sending Jul 28 06:58:23.067: IP: s=10.1.1.3 (Serial1/0), d=2.2.2.2 (Serial1/0), len 100, rcvd 3 Jul 28 06:58:23.067: ICMP: echo reply rcvd, src 10.1.1.3, dst 2.2.2.2 可以看出ping是从s1/0出去的,说明了浮动路由起了作用.
	IP已记录

workatlab ITAA会员注册: 2006-6月-03 所在地: India 在线状态: 发帖数: 321	发表: 2006-8月-03 16:46
	Aug 3 08:32:16.227: IP: s=1.1.1.2 (local), d=10.1.1.3 (Serial2/0), len 100, se nding Aug 3 08:32:16.319: IP: s=10.1.1.3 (Serial2/0), d=1.1.1.2 (Serial2/0), len 100 , rcvd 3 Aug 3 08:32:16.347: IP: s=1.1.1.2 (local), d=10.1.1.3 (Serial2/0), len 100, se nding Aug 3 08:32:16.399: IP: s=10.1.1.3 (Serial2/0), d=1.1.1.2 (Serial2/0), len 100 , rcvd 3 Aug 3 08:32:16.467: IP: s=1.1.1.2 (local), d=10.1.1.3 (Serial2/0), len 100, se nding Aug 3 08:32:16.507: IP: s=10.1.1.3 (Serial2/0), d=1.1.1.2 (Serial2/0), len 100 , rcvd 3 Aug 3 08:32:16.547: IP: s=1.1.1.2 (local), d=10.1.1.3 (Serial2/0), len 100, se nding Aug 3 08:32:16.607: IP: s=10.1.1.3 (Serial2/0), d=1.1.1.2 (Serial2/0) 2#, len 100, rcvd 3 Aug 3 08:32:16.639: IP: s=1.1.1.2 (local), d=10.1.1.3 (Serial2/0), len 100, se nding Aug 3 08:32:16.679: IP: s=10.1.1.3 (Serial2/0), d=1.1.1.2 (Serial2/0), len 10 Aug 3 08:33:18.907: IP: s=2.2.2.2 (local), d=10.1.1.3 (Serial1/0), len 100, se nding Aug 3 08:33:18.947: IP: s=10.1.1.3 (Serial1/0), d=2.2.2.2 (Serial1/0), len 100 , rcvd 3 Aug 3 08:33:18.967: IP: s=2.2.2.2 (local), d=10.1.1.3 (Serial1/0), len 100, se nding Aug 3 08:33:19.007: IP: s=10.1.1.3 (Serial1/0), d=2.2.2.2 (Serial1/0), len 100 , rcvd 3 Aug 3 08:33:19.047: IP: s=2.2.2.2 (local), d=10.1.1.3 (Serial1/0), len 100, se nding Aug 3 08:33:19.087: IP: s=10.1.1.3 (Serial1/0), d=2.2.2.2 (Serial1/0), len 100 , rcvd 3 Aug 3 08:33:19.119: IP: s=2.2.2.2 (local), d=10.1.1.3 (Serial1/0), len 100, se nding Aug 3 08:33:19.159: IP: s=10.1.1.3 (Serial1/0), d=2.2.2.2 (Serial1/0) 2#, len 100, rcvd 3 Aug 3 08:33:19.187: IP: s=2.2.2.2 (local), d=10.1.1.3 (Serial1/0), len 100, se nding *Aug 3 08:33:19.227: IP: s=10.1.1.3 (Serial1/0), d=2.2.2.2 (Serial1/0), len 100 , rcvd 3
	IP已记录

workatlab ITAA会员注册: 2006-6月-03 所在地: India 在线状态: 发帖数: 321	发表: 2006-8月-03 16:59
	实验:静态路由的负载平衡 (r2) / \ / ; ; ; \ / ; ; ; \ (r1)--------(r3) r1 s1/0:1.1.1.1/24 s2/0:10.1.1.1/24 r2 s1/0:2.2.2.2/24 s2/0:1.1.1.2/24 r3 s1/0:10.1.1.3/24 s2/0:2.2.2.3/24 配置如下： r1 hostname 1 ! interface Serial1/0 ip address 1.1.1.1 255.255.255.0 clockrate 64000 ! interface Serial2/0 ip address 10.1.1.1 255.255.255.0 ! ip route 2.0.0.0 255.0.0.0 10.1.1.3 r2 hostname 2 ! interface Serial1/0 ip address 2.2.2.2 255.255.255.0 clockrate 64000 ! interface Serial2/0 ip address 1.1.1.2 255.255.255.0 ! 2(config)#ip route 0.0.0.0 0.0.0.0 s 2/0 2(config)#ip route 0.0.0.0 0.0.0.0 s 1/0 r3 hostname 3 ! interface Serial1/0 ip address 10.1.1.3 255.255.255.0 clockrate 64000 ! interface Serial2/0 ip address 2.2.2.3 255.255.255.0 ! ip classless ip route 1.0.0.0 255.0.0.0 10.1.1.1 2# 2# 2# 2#p Protocol [ip]: Target IP address: 10.1.1.1 Repeat count [5]: 10 Datagram size [100]: Timeout in seconds [2]: Extended commands [n]: Sweep range of sizes [n]: Type escape sequence to abort. Sending 10, 100-byte ICMP Echos to 10.1.1.1, timeout is 2 seconds: !!!!!!!!!! Success rate is 100 percent (10/10), round-trip min/avg/max = 28/33/52 ms 2# Aug 3 08:44:17.439: IP: s=2.2.2.2 (local), d=10.1.1.1 (Serial1/0), len 100, se nding Aug 3 08:44:17.491: IP: s=10.1.1.1 (Serial1/0), d=2.2.2.2 (Serial1/0), len 100 , rcvd 3 Aug 3 08:44:17.499: IP: s=1.1.1.2 (local), d=10.1.1.1 (Serial2/0), len 100, se nding Aug 3 08:44:17.531: IP: s=10.1.1.1 (Serial2/0), d=1.1.1.2 (Serial2/0), len 100 , rcvd 3 Aug 3 08:44:17.591: IP: s=2.2.2.2 (local), d=10.1.1.1 (Serial1/0), len 100, se nding Aug 3 08:44:17.619: IP: s=10.1.1.1 (Serial1/0), d=2.2.2.2 (Serial1/0), len 100 , rcvd 3 Aug 3 08:44:17.699: IP: s=1.1.1.2 (local), d=10.1.1.1 (Serial2/0), len 100, se nding Aug 3 08:44:17.731: IP: s=10.1.1.1 (Serial2/0), d=1.1.1.2 (Serial2/0), len 100 , rcvd 3 Aug 3 08:44:17.751: IP: s=2.2.2.2 (local), d=10.1.1.1 (Serial1/0), len 100, se nding Aug 3 08:44:17.779: IP: s=10.1.1.1 (Serial1/0), d=2.2.2.2 (Serial1/0), len 100 , rcvd 3 Aug 3 08:44:17.819: IP: s=1.1.1.2 (local), d=10.1.1.1 (Serial2/0), len 100, se nding Aug 3 08:44:17.851: IP: s=10.1.1.1 (Serial2/0), d=1.1.1.2 (Serial2/0), len 100 , rcvd 3 Aug 3 08:44:17.891: IP: s=2.2.2.2 (local), d=10.1.1.1 (Serial1/0), len 100, se nding Aug 3 08:44:17.919: IP: s=10.1.1.1 (Serial1/0), d=2.2.2.2 (Serial1/0), len 100 , rcvd 3 Aug 3 08:44:17.931: IP: s=1.1.1.2 (local), d=10.1.1.1 (Serial2/0), len 100, se nding 2# Aug 3 08:44:17.959: IP: s=10.1.1.1 (Serial2/0), d=1.1.1.2 (Serial2/0), len 100 , rcvd 3 Aug 3 08:44:17.991: IP: s=2.2.2.2 (local), d=10.1.1.1 (Serial1/0), len 100, se nding Aug 3 08:44:18.031: IP: s=10.1.1.1 (Serial1/0), d=2.2.2.2 (Serial1/0), len 100 , rcvd 3 Aug 3 08:44:18.059: IP: s=1.1.1.2 (local), d=10.1.1.1 (Serial2/0), len 100, se nding Aug 3 08:44:18.091: IP: s=10.1.1.1 (Serial2/0), d=1.1.1.2 (Serial2/0), len 100 , rcvd 3
	IP已记录

Guests Guest	发表: 2006-8月-03 20:36
	建议：TCP/IP路由卷一上面的静态路由一章的试验举例，可以好好看看，并自行仿照设计几个实验。
	IP已记录

workatlab ITAA会员注册: 2006-6月-03 所在地: India 在线状态: 发帖数: 321	发表: 2006-8月-04 10:26
	偶就是看vol 1里面的东西才模仿做的。。

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