实验09 RIPv2的基本配置.docx

*实验09 RIPv2的基本配置【实验要求】1掌握RIP v2 的基本配置 2理解RIP v1、v2 两个版本的差异 3理解RIP v1、v2 之间互相学习的机制【实验拓扑】R1、R2、R3三台路由器运行 RIP，各路由器的环回口之间互相路由可达。实验步骤(1) 在各台路由器上配置 RIP v2 R1 配置 R1(config)#router rip R1(config-router)#version 2 R1(config-router)#network 11.0.0.0 R1(config-router)#network 12.0.0.0 R1(config-router)#network 13.0.0.0 R1(config-router)#no auto-summary R2 配置 R2(config)#router rip R2(config-router)#version 2 R2(config-router)#network 22.0.0.0 R2(config-router)#network 12.0.0.0 R2(config-router)#network 23.0.0.0 R2(config-router)#no auto-summaryR3 配置 R3(config)#router rip R3(config-router)#version 2 R3(config-router)#network 33.0.0.0 R3(config-router)#network 13.0.0.0 R3(config-router)#network 23.0.0.0 R3(config-router)#no auto-summary(2) 在各台路由器上分别查看路由表 R1#show ip route rip 120是 RIP的默认管理距离； 1是RIP计算的到达目标33.1.1.0网段的度量值，即跳数 33.0.0.0/24 is subnetted, 1 subnets R 33.1.1.0 120/1 via 13.1.1.3, 00:00:26, Serial0/1 23.0.0.0/24 is subnetted, 1 subnets R1到达23.1.1.0网段存在2条等价路径，负载均衡R 23.1.1.0 120/1 via 13.1.1.3, 00:00:26, Serial0/1 120/1 via 12.1.1.2, 00:00:10, Serial0/0 22.0.0.0/24 is subnetted, 1 subnets R 22.1.1.0 120/1 via 12.1.1.2, 00:00:10, Serial0/0 R2#show ip route rip 33.0.0.0/24 is subnetted, 1 subnets RIP v2是无类路由协议，路由宣告携带子网掩码。由于 R1设置为不自动汇总RIP路由，宣告路由携带的是相应直连接口的子网掩码。R 33.1.1.0 120/1 via 23.1.1.3, 00:00:06, Serial0/1 11.0.0.0/24 is subnetted, 1 subnets R 11.1.1.0 120/1 via 12.1.1.1, 00:00:14, Serial0/0 13.0.0.0/24 is subnetted, 1 subnets R 13.1.1.0 120/1 via 23.1.1.3, 00:00:06, Serial0/1 120/1 via 12.1.1.1, 00:00:14, Serial0/0 R3#show ip route rip 22.0.0.0/24 is subnetted, 1 subnets R 22.1.1.0 120/1 via 23.1.1.2, 00:00:05, Serial0/1 11.0.0.0/24 is subnetted, 1 subnets R 11.1.1.0 120/1 via 13.1.1.1, 00:00:08, Serial0/0 12.0.0.0/24 is subnetted, 1 subnets R 12.1.1.0 120/1 via 23.1.1.2, 00:00:05, Serial0/1 120/1 via 13.1.1.1, 00:00:08, Serial0/0 (3) 把R3 的RIP改为 v1 版本，R1、R2 保持v2 版本 R3(config)#router rip R3(config-router)#no version 2 /残留的no auto-summary不生效 分别在 R1、R2、R3 上查看路由表 R1#show ip route rip 经过失效时间后，33.1.1.0/24的路由失效，因为在默认情况下，RIP v2不能学习 v1 的路由，来自 R3的RIP v1路由更新将视为非法而被忽略。R2上亦然。 23.0.0.0/24 is subnetted, 1 subnetsR 23.1.1.0 120/1 via 12.1.1.2, 00:00:23, Serial0/0 22.0.0.0/24 is subnetted, 1 subnets R 22.1.1.0 120/1 via 12.1.1.2, 00:00:23, Serial0/0 R2#show ip route rip 11.0.0.0/24 is subnetted, 1 subnets R 11.1.1.0 120/1 via 12.1.1.1, 00:00:23, Serial0/0 13.0.0.0/24 is subnetted, 1 subnets R 13.1.1.0 120/1 via 12.1.1.1, 00:00:23, Serial0/0 R3#show ip route rip 22.0.0.0/24 is subnetted, 1 subnets 默认情况下， v1可以学习v2的路由更新，因此R3上的路由表没有因版本的变更而变化。R 22.1.1.0 120/1 via 23.1.1.2, 00:00:14, Serial0/1 11.0.0.0/24 is subnetted, 1 subnets R 11.1.1.0 120/1 via 13.1.1.1, 00:00:11, Serial0/0 12.0.0.0/24 is subnetted, 1 subnets R 12.1.1.0 120/1 via 23.1.1.2, 00:00:14, Serial0/1 120/1 via 13.1.1.1, 00:00:11, Serial0/0R2#debug ip rip events *Mar 1 01:28:44.419: RIP: ignored v1 packet from 23.1.1.3 (illegal version) /视为非法更新*Mar 1 01:28:44.851: RIP: sending v2 update to 224.0.0.9 via Serial0/1 (23.1.1.2) (4) 使R1、R2的RIP v2 能学习R3 的RIP v1 路由更新 配置R2，不要配置R1 R2(config)#int S0/1 R2(config-if)#ip rip receive version 1 2 /使运行RIP v2的 R2能接收 v1、v2的 RIP 更新 在各台路由器上查看路由表 源于R3的直连路由。R1运行RIPv2，不能直接从S0/1接收R3的v1路由更新。通告路径：R3(汇总33.0.0.0/8)R2(汇总33.0.0.0/8)R1。在 R3经 RIP v1的自动汇总R1#show ip route rip R 33.0.0.0/8 120/2 via 12.1.1.2, 00:00:09, Serial0/0 23.0.0.0/24 is subnetted, 1 subnets R 23.1.1.0 120/1 via 12.1.1.2, 00:00:13, Serial0/0 22.0.0.0/24 is subnetted, 1 subnets 源于 R1 本地的直连路由。通告路径：R1(明细 11.1.1.0/24)R3(汇总 11.0.0.0/8)R2(汇总11.0.0.0/8)R1。在 R3经 RIP v1的自动汇总。R 22.1.1.0 120/1 via 12.1.1.2, 00:00:13, Serial0/0 11.0.0.0/8 is variably subnetted, 2 subnets, 2 masks R 11.0.0.0/8 120/3 via 12.1.1.2, 00:00:09, Serial0/0 源于 R3的直连路由。路径：R3(汇总13.0.0.0/8)R2(汇总13.0.0.0/8)R1。在 R3经 RIP v1自动汇总。 13.0.0.0/8 is variably subnetted, 2 subnets, 2 masks R 13.0.0.0/8 120/2 via 12.1.1.2, 00:00:09, Serial0/0 R2#show ip route rip R 33.0.0.0/8 120/1 via 23.1.1.3, 00:00:27, Serial0/1 11.0.0.0/8 is variably subnetted, 2 subnets, 2 masksR 11.1.1.0/24 120/1 via 12.1.1.1, 00:00:07, Serial0/0 R 11.0.0.0/8 120/2 via 23.1.1.3, 00:00:27, Serial0/1 13.0.0.0/8 is variably subnetted, 2 subnets, 2 masks R 13.1.1.0/24 120/1 via 12.1.1.1, 00:00:07, Serial0/0 R 13.0.0.0/8 120/1 via 23.1.1.3, 00:00:27, Serial0/1 R3#show ip route rip 33.0.0.0/8 is variably subnetted, 2 subnets, 2 masks R 33.0.0.0/8 120/3 via 13.1.1.1, 00:00:03, Serial0/0 22.0.0.0/24 is subnetted, 1 subnets R 22.1.1.0 120/1 via 23.1.1.2, 00:00:04, Serial0/1 11.0.0.0/8 is variably subnetted, 2 subnets, 2 masks R 11.1.1.0/24 120/1 via 13.1.1.1, 00:00:03, Serial0/0 R 11.0.0.0/8 120/4 via 13.1.1.1, 00:00:03