ospf综合案例解析

v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}

实验拓扑图：



实验使用命令：
1：int e0/0
Ip add
No sh …………配置接口的IP地址
2：router ospf jinchenghao
Network …………配置OSPF路由协议
Redistribute rip metric 1—16777241 metric-type 1/2 subnets …………发布RIP路由信息到OSPF里
Redistribute static metric 1—16777214 subnets 发布静态路由信息到OSPF里
Default-information originate ……发布默认路由信息
3.地址汇总：
ABR上： area 区域号 range ip-add mask
ASBR上:summary-add ip-add mssk
4.设置NSSA区域：
Area 区域号 nssa(no-summary)
Area 区域号 stub(no-summary)
5.设置辅助地址：
Ip add ip-add mask secondary
6.设置虚链路：必须在两个ABR上
Area 区域号(穿越区) virtual-link 对方routeID号
实验步骤：
[align=left]SH1的配置：[/align]
[align=left]ena[/align]
[align=left]conf t[/align]
[align=left]hostname sh1[/align]
[align=left]int s1/0[/align]
[align=left]ip add 192.168.224.2 255.255.255.252[/align]
[align=left]no sh[/align]
[align=left]exit[/align]
[align=left]int e0/0[/align]
[align=left]ip add 192.168.248.1 255.255.255.0[/align]
[align=left]no sh[/align]
[align=left]exit[/align]
[align=left]int Loop 1[/align]
[align=left]ip add 100.65.0.1 255.255.0.0[/align]
[align=left]ip add 100.66.0.1 255.255.0.0 secondary[/align]
[align=left]ip add 100.67.0.1 255.255.0.0 secondary[/align]
[align=left]ip add 100.68.0.1 255.255.0.0 secondary[/align]
[align=left]exit[/align]
[align=left]router ospf 1[/align]
[align=left]network 192.168.248.0 0.0.0.255 are 2[/align]
[align=left]network 192.168.224.0 0.0.0.3 are 2[/align]
[align=left]network 100.65.0.0 0.0.255.255 area 2[/align]
[align=left]network 100.66.0.0 0.0.255.255 area 2[/align]
[align=left]network 100.67.0.0 0.0.255.255 area 2[/align]
[align=left]network 100.68.0.0 0.0.255.255 area 2[/align]
[align=left]exit[/align]
[align=left]exit[/align]
wri
****************************************************
[align=left]BJ2的配置：[/align]
[align=left]ena[/align]
[align=left]conf t[/align]
[align=left]hostname BJ2[/align]
[align=left]int s1/0[/align]
[align=left]ip ospf priority 0[/align]
[align=left]ip add 192.168.224.1 255.255.255.252[/align]
[align=left]no sh[/align]
[align=left]exit[/align]
[align=left]int e0/0[/align]
[align=left]ip add 192.168.1.3 255.255.255.0[/align]
[align=left]no sh[/align]
[align=left]exit[/align]
[align=left]router ospf 1[/align]
[align=left]network 192.168.1.0 0.0.0.255 are 0[/align]
[align=left]network 192.168.224.0 0.0.0.3 are 2[/align]
[align=left]area 2 rang 100.64.0.0 255.248.0.0[/align]
[align=left]exit[/align]
[align=left]exit[/align]
wri
************************************************
[align=left]BJ1的配置：[/align]
[align=left]ena[/align]
[align=left]conf t[/align]
[align=left]hostname BJ1[/align]
[align=left]int e0/0[/align]
[align=left]ip add 192.168.1.2 255.255.255.0[/align]
[align=left]no sh[/align]
[align=left]exit[/align]
[align=left]int s1/0[/align]
[align=left]ip add 192.168.64.1 255.255.255.252[/align]
[align=left]no sh[/align]
[align=left]exit[/align]
[align=left]int s1/1[/align]
[align=left]ip add 172.16.0.6 255.255.255.252[/align]
[align=left]no sh[/align]
[align=left]exit[/align]
[align=left]router ospf 1[/align]
[align=left]network 192.168.1.0 0.0.0.255 are 0[/align]
[align=left]network 192.168.64.0 0.0.0.3 are 1[/align]
[align=left]are 1 stub no-summary[/align]
[align=left]redistribute static metric 200 metric-type 1 subnets [/align]
[align=left]ip route 172.16.1.0 255.255.255.0 172.16.0.5 [/align]
[align=left]exit[/align]
[align=left]wri[/align]
[align=left]*********************************************************[/align]
[align=left]GZ1的配置：[/align]
[align=left]ena[/align]
[align=left]conf t[/align]
[align=left]hostname GZ1[/align]
[align=left]int s1/0[/align]
[align=left]ip add 192.168.64.2 255.255.255.252[/align]
[align=left]no sh[/align]
[align=left]exit[/align]
[align=left]int e0/0[/align]
[align=left]ip add 192.168.72.1 255.255.255.0[/align]
[align=left]no sh[/align]
[align=left]exit[/align]
[align=left]router ospf 1[/align]
[align=left]network 192.168.64.0 0.0.0.3 are 1[/align]
[align=left]network 192.168.72.0 0.0.0.255 are 1[/align]
[align=left]are 1 stub[/align]
[align=left]exit[/align]
[align=left]exit[/align]
[align=left]wri[/align]
[align=left]*******************************************************[/align]
[align=left]ISP配置：[/align]
[align=left]ena[/align]
[align=left]conf t[/align]
[align=left]hostname isp[/align]
[align=left]int s0/0[/align]
[align=left]ip add 172.16.0.5 255.255.255.252[/align]
[align=left]no sh[/align]
[align=left]exit[/align]
[align=left]int loopback 0[/align]
[align=left]ip add 172.16.1.1 255.255.255.0[/align]
[align=left]exit[/align]
[align=left]ip route 192.168.0.0 255.255.0.0 172.16.0.6 [/align]
[align=left]exit[/align]
[align=left]wri[/align]
[align=left]**********************************************************[/align]
[align=left]因为是用小凡模拟做的实验，所以PC配置如下：[/align]
[align=left]PC1的配置：[/align]
[align=left]ena[/align]
[align=left]conf t[/align]
[align=left]hostname pc1[/align]
[align=left]int e0/0[/align]
[align=left]ip add 192.168.248.2 255.255.255.0[/align]
[align=left]no sh[/align]
[align=left]exit[/align]
[align=left]no ip routing[/align]
[align=left]ip default-gateway 192.168.248.1[/align]
[align=left]exit[/align]
[align=left]wri[/align]
[align=left]***************************************************[/align]
[align=left]PC2的配置：[/align]
[align=left]ena[/align]
[align=left]conf t[/align]
[align=left]hostname pc2[/align]
[align=left]int e0/0[/align]
[align=left]ip add 192.168.72.2 255.255.255.0[/align]
[align=left]no sh[/align]
[align=left]exit[/align]
[align=left]no ip routing[/align]
[align=left]ip default-gateway 192.168.72.1[/align]
[align=left]exit[/align]
wri
**********************************************************
实验验证：（请注意一下重点标记的，这可是关键哦）
[align=left]pc1#ping 192.168.72.2[/align]
[align=left]Type escape sequence to abort.[/align]
[align=left]Sending 5, 100-byte ICMP Echos to 192.168.72.2, timeout is 2 seconds:[/align]
[align=left]!!!!![/align]
[align=left]Success rate is 100 percent (5/5), round-trip min/avg/max = 284/345/400 ms[/align]
[align=left]pc1#ping 172.16.1.1 [/align]
[align=left] [/align]
[align=left]Type escape sequence to abort.[/align]
[align=left]Sending 5, 100-byte ICMP Echos to 172.16.1.1, timeout is 2 seconds:[/align]
[align=left]!!!!![/align]
[align=left]Success rate is 100 percent (5/5), round-trip min/avg/max = 144/220/280 ms[/align]
[align=left]********************************************************[/align]
[align=left]pc2#ping 172.16.1.1[/align]
[align=left]Type escape sequence to abort.[/align]
[align=left]Sending 5, 100-byte ICMP Echos to 172.16.1.1, timeout is 2 seconds:[/align]
[align=left]!!!!![/align]
[align=left]Success rate is 100 percent (5/5), round-trip min/avg/max = 116/160/200 ms[/align]
[align=left]pc2#ping 192.168.248.2 [/align]
[align=left] Type escape sequence to abort.[/align]
[align=left]Sending 5, 100-byte ICMP Echos to 192.168.248.2, timeout is 2 seconds:[/align]
[align=left]!!!!![/align]
[align=left]Success rate is 100 percent (5/5), round-trip min/avg/max = 236/327/436 ms[/align]
[align=left]***********************************************************sh1#sh ip route[/align]
[align=left]Gateway of last resort is not set[/align]
[align=left]O IA 192.168.72.0/24 [110/148] via 192.168.224.1, 00:05:16, Serial1/0[/align]
[align=left] 100.0.0.0/16 is subnetted, 4 subnets[/align]
[align=left]C 100.68.0.0 is directly connected, Loopback1[/align]
[align=left]C 100.65.0.0 is directly connected, Loopback1[/align]
[align=left]C 100.66.0.0 is directly connected, Loopback1[/align]
[align=left]C 100.67.0.0 is directly connected, Loopback1[/align]
[align=left] 192.168.224.0/30 is subnetted, 1 subnets[/align]
[align=left]C 192.168.224.0 is directly connected, Serial1/0[/align]
[align=left] 172.16.0.0/24 is subnetted, 1 subnets[/align]
[align=left]O E1 172.16.1.0 [110/274] via 192.168.224.1, 00:05:58, Serial1/0[/align]
[align=left] 192.168.64.0/30 is subnetted, 1 subnets[/align]
[align=left]O IA 192.168.64.0 [110/138] via 192.168.224.1, 00:05:16, Serial1/0[/align]
[align=left]C 192.168.248.0/24 is directly connected, Ethernet0/0[/align]
[align=left]O IA 192.168.1.0/24 [110/74] via 192.168.224.1, 00:05:59, Serial1/0[/align]
[align=left]**********************************************************[/align]
[align=left]BJ2#sh ip route[/align]
[align=left]Gateway of last resort is not set[/align]
[align=left]O IA 192.168.72.0/24 [110/84] via 192.168.1.2, 00:06:21, Ethernet0/0[/align]
[align=left] 100.0.0.0/8 is variably subnetted, 5 subnets, 3 masks[/align]
[align=left]O 100.68.0.0/16 [110/65] via 192.168.224.2, 00:07:49, Serial1/0[/align]
[align=left]O 100.64.0.0/13 is a summary, 00:07:49, Null0[/align]
[align=left]O 100.65.0.1/32 [110/65] via 192.168.224.2, 00:07:49, Serial1/0[/align]
[align=left]O 100.66.0.0/16 [110/65] via 192.168.224.2, 00:07:49, Serial1/0[/align]
[align=left]O 100.67.0.0/16 [110/65] via 192.168.224.2, 00:07:49, Serial1/0[/align]
[align=left] 192.168.224.0/30 is subnetted, 1 subnets[/align]
[align=left]C 192.168.224.0 is directly connected, Serial1/0[/align]
[align=left] 172.16.0.0/24 is subnetted, 1 subnets[/align]
[align=left]O E1 172.16.1.0 [110/210] via 192.168.1.2, 00:06:25, Ethernet0/0[/align]
[align=left] 192.168.64.0/30 is subnetted, 1 subnets[/align]
[align=left]O IA 192.168.64.0 [110/74] via 192.168.1.2, 00:06:21, Ethernet0/0[/align]
[align=left]O 192.168.248.0/24 [110/74] via 192.168.224.2, 00:07:50, Serial1/0[/align]
[align=left]C 192.168.1.0/24 is directly connected, Ethernet0/0[/align]
[align=left]***********************************************************BJ1#sh ip route[/align]
[align=left]Gateway of last resort is not set[/align]
[align=left]O 192.168.72.0/24 [110/74] via 192.168.64.2, 00:07:55, Serial1/0[/align]
[align=left] 100.0.0.0/13 is subnetted, 1 subnets[/align]
[align=left]O IA 100.64.0.0 [110/75] via 192.168.1.3, 00:07:55, Ethernet0/0[/align]
[align=left] 192.168.224.0/30 is subnetted, 1 subnets[/align]
[align=left]O IA 192.168.224.0 [110/74] via 192.168.1.3, 00:07:55, Ethernet0/0[/align]
[align=left] 172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks[/align]
[align=left]C 172.16.0.4/30 is directly connected, Serial1/1[/align]
[align=left]S 172.16.1.0/24 [1/0] via 172.16.0.5[/align]
[align=left] 192.168.64.0/30 is subnetted, 1 subnets[/align]
[align=left]C 192.168.64.0 is directly connected, Serial1/0[/align]
[align=left]O IA 192.168.248.0/24 [110/84] via 192.168.1.3, 00:07:55, Ethernet0/0[/align]
[align=left]C 192.168.1.0/24 is directly connected, Ethernet0/0[/align]
[align=left]**********************************************************[/align]
[align=left]GZ1#sh ip route[/align]
[align=left]Gateway of last resort is 192.168.64.1 to network 0.0.0.0[/align]
[align=left]C 192.168.72.0/24 is directly connected, Ethernet0/0[/align]
[align=left] 192.168.64.0/30 is subnetted, 1 subnets[/align]
[align=left]C 192.168.64.0 is directly connected, Serial1/0[/align]
[align=left]O*IA 0.0.0.0/0 [110/65] via 192.168.64.1, 00:09:05, Serial1/0[/align]
[align=left]*********************************************************[/align]
[align=left]isp#sh ip route[/align]
[align=left]Gateway of last resort is not set[/align]
[align=left] 172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks[/align]
[align=left]C 172.16.0.4/30 is directly connected, Serial0/0[/align]
[align=left]C 172.16.1.0/24 is directly connected, Loopback0[/align]
[align=left]S 192.168.0.0/16 [1/0] via 172.16.0.6[/align]
***********************************************************