题目：
配置：
R1
//ip分配[r1]int g0/0/0
[r1-GigabitEthernet0/0/0]ip add 172.16.0.1 27
[r1-GigabitEthernet0/0/0]q
[r1]int lo
[r1]int LoopBack 0
[r1-LoopBack0]ip add 172.16.1.1 24
//配置缺省
[r1]ip route-static 0.0.0.0 0 172.16.0.3//启动ospf
[r1]ospf 1 router-id 1.1.1.1
[r1-ospf-1]area 1
[r1-ospf-1-area-0.0.0.1]network 172.16.1.1 0.0.0.0
[r1-ospf-1-area-0.0.0.1]network 172.16.0.1 0.0.0.0//在area1上配置完全末梢区域
[r1]ospf 1
[r1-ospf-1]area 1
[r1-ospf-1-area-0.0.0.1]stub
R2
//ip分配
[r2]int g0/0/0
[r2-GigabitEthernet0/0/0]ip add 172.16.0.2 27
[r2-GigabitEthernet0/0/0]q
[r2]int l0
[r2]int l0
[r2-LoopBack0]ip add 172.16.2.1 24//配置缺省
[r2]ip route-static 0.0.0.0 0 172.16.0.3//启动ospf
[r2]ospf 1 router-id 2.2.2.2
[r2-ospf-1]area 1
[r2-ospf-1-area-0.0.0.1]network 172.16.2.1 0.0.0.0
[r2-ospf-1-area-0.0.0.1]network 172.16.0.2 0.0.0.0//在area1上配置完全末梢区域
[r2]ospf 1
[r2-ospf-1]area 1
[r2-ospf-1-area-0.0.0.1]stub no-summary
R3
//ip分配
[r3]int g0/0/0
[r3-GigabitEthernet0/0/0]ip add 172.16.0.3 27
[r3-GigabitEthernet0/0/0]q
[r3]int s4/0/0
[r3-Serial4/0/0]ip add 34.0.0.1 24
[r3]int l0
[r3-LoopBack0]ip add 172.16.3.1 24//配置缺省
[r3]ip route-static 0.0.0.0 0 34.0.0.2//搭建MGRE环境
[r3]int t0/0/0
[r3-Tunnel0/0/0]ip add 172.16.12.1 24
[r3-Tunnel0/0/0]tunnel-protocol gre p2mp
[r3-Tunnel0/0/0]source 34.0.0.1
[r3-Tunnel0/0/0]nhrp entry multicast dynamic
[r3-Tunnel0/0/0]nhrp network-id 100//启动ospf
[r3]ospf 1 router-id 3.3.3.3
[r3-ospf-1]area 0
[r3-ospf-1-area-0.0.0.0]network 172.16.12.1 0.0.0.0
[r3-ospf-1]area 1
[r3-ospf-1-area-0.0.0.1]network 172.16.0.3 0.0.0.0
[r3-ospf-1-area-0.0.0.1]network 172.16.3.1 0.0.0.0//修改选举
[r3]int t0/0/0
[r3-Tunnel0/0/0]ospf network-type broadcast//汇总
[r3]ospf 1
[r3-ospf-1]area 1
[r3-ospf-1-area-0.0.0.1]abr-summary 172.16.0.0 255.255.255.224
[r3-ospf-1]area 0
[r3-ospf-1-area-0.0.0.0]abr-summary 172.16.12.0 255.255.255.0//在area1上配置完全末梢区域
[r3]ospf 1
[r3-ospf-1]area 1
[r3-ospf-1-area-0.0.0.1]stub no-summary//配置动态nat
[r3]nat address-group 1 34.0.0.4 34.0.0.5
[r3]acl 2000
[r3-acl-basic-2000]rule permit source 172.16.0.128 0.0.0.31
[r3-acl-basic-2000]q
[r3]int s4/0/0
[r3-Serial4/0/0]nat outbound 2000 address-group 1 no-pat//防环
[r3]ip route-static 172.16.0.0 16 null 0
R4
//ip分配
[r4]int s4/0/0
[r4-Serial4/0/0]ip add 34.0.0.2 24
[r4-Serial4/0/0]int s3/0/1
[r4-Serial3/0/1]ip add 54.0.0.2 24
[r4-Serial3/0/1]int s3/0/0
[r4-Serial3/0/0]ip add 64.0.0.2 24
[r4-Serial3/0/0]int s4/0/1
[r4-Serial4/0/1]ip add 74.0.0.2 24
[r4-Serial4/0/1]q
[r4]int l0
[r4-LoopBack0]ip add 4.4.4.4 24
R5
//ip分配
[r5]int s4/0/0
[r5-Serial4/0/0]ip add 54.0.0.1 24
[r5-Serial4/0/0]q
[r5]int l0
[r5-LoopBack0]ip add 172.16.5.1 24//配置缺省
[r5]ip route-static 0.0.0.0 0 54.0.0.2//搭建MGRE环境
[r5]int t0/0/0
[r5-Tunnel0/0/0]ip add 172.16.12.2 24
[r5-Tunnel0/0/0]tunnel-protocol gre p2mp
[r5-Tunnel0/0/0]source Serial 4/0/0
[r5-Tunnel0/0/0]nhrp entry 172.16.12.1 34.0.0.1 register
[r5-Tunnel0/0/0]nhrp network-id 100//启动ospf
[r5]ospf 1 router-id 5.5.5.5
[r5-ospf-1]area 0
[r5-ospf-1-area-0.0.0.0]network 172.16.5.1 0.0.0.0
[r5-ospf-1-area-0.0.0.0]network 172.16.12.2 0.0.0.0//修改选举
[r5]int t0/0/0
[r5-Tunnel0/0/0]ospf network-type broadcast
[r5-Tunnel0/0/0]ospf dr-priority 0
//配置动态nat[r5]nat address-group 1 54.0.0.4 54.0.0.5
[r5]acl 2000
[r5-acl-basic-2000]rule permit source 172.16.5.0 0.0.0.255
[r5-acl-basic-2000]q
[r5]int s4/0/0
[r5-Serial4/0/0]nat outbound 2000 address-group 1 no-pat
R6
//ip分配
[r6]int s4/0/0
[r6-Serial4/0/0]ip add 64.0.0.1 24
[r6-Serial4/0/0]int s4/0/1
[r6-Serial4/0/1]ip add 172.16.0.129 27
[r6-Serial4/0/1]q
[r6]int l0
[r6-LoopBack0]ip add 172.16.6.1 24//配置缺省
[r6]ip route-static 0.0.0.0 0 64.0.0.2//搭建MGRE环境
[r6]int t0/0/0
[r6-Tunnel0/0/0]ip add 172.16.12.3 24
[r6-Tunnel0/0/0]tunnel-protocol gre p2mp
[r6-Tunnel0/0/0]source Serial 4/0/0
[r6-Tunnel0/0/0]nhrp entry 172.16.12.1 34.0.0.1 register
[r6-Tunnel0/0/0]nhrp network-id 100//启动ospf
[r6]ospf 1 router-id 6.6.6.6
[r6-ospf-1]area 0
[r6-ospf-1-area-0.0.0.0]network 172.16.6.1 0.0.0.0
[r6-ospf-1-area-0.0.0.0]network 172.16.12.3 0.0.0.0
[r6-ospf-1]area 2
[r6-ospf-1-area-0.0.0.2]network 172.16.0.129 0.0.0.0//修改选举
[r6]int t0/0/0
[r6-Tunnel0/0/0]ospf dr-priority 0
[r6-Tunnel0/0/0]ospf network-type broadcast在area2上，配置完全nssa
[r6]ospf 1
[r6-ospf-1]area 0
[r6-ospf-1-area-0.0.0.0]abr-summary 172.16.12.0 255.255.255.0
[r6-ospf-1]area 2
[r6-ospf-1-area-0.0.0.2]abr-summary 172.16.0.128 255.255.255.224
[r6-ospf-1-area-0.0.0.2]nssa no-summary
//配置动态nat
[r6]nat address-group 1 64.0.0.4 64.0.0.5
[r6]acl 2000
[r6-acl-basic-2000]rule permit source 172.16.6.0 0.0.0.255
[r6-acl-basic-2000]rule permit source 172.16.0.128 0.0.0.31
[r6-acl-basic-2000]rule permit source 10.1.1.0 0.0.0.255
[r6-acl-basic-2000]rule permit source 11.1.1.0 0.0.0.255
[r6-acl-basic-2000]q
[r6]int s4/0/0
[r6-Serial4/0/0]nat outbound 2000 address-group 1 no-pat
//防环
[r6]ip route-static 172.16.0.128 27 NULL 0
[r6]ip route-static 172.16.6.0 24 NULL 0
R7
//ip分配
[r7]int s4/0/0
[r7-Serial4/0/0]ip add 74.0.0.1 24
[r7-Serial4/0/0]int s4/0/1
[r7-Serial4/0/1]ip add 172.16.0.33 27
[r7-Serial4/0/1]q
[r7]int l0
[r7-LoopBack0]ip add 172.16.7.1 24//配置缺省
[r7]ip route-static 0.0.0.0 0 74.0.0.2//搭建MGRE环境
[r7]int t0/0/0
[r7-Tunnel0/0/0]ip add 172.16.12.4 24
[r7-Tunnel0/0/0]tunnel-protocol gre p2mp
[r7-Tunnel0/0/0]source s4/0/0
[r7-Tunnel0/0/0]nhrp entry 172.16.12.1 34.0.0.1 register
[r7-Tunnel0/0/0]nhrp network-id 100//启动ospf
[r7]ospf 1 router-id 7.7.7.7
[r7-ospf-1]area 0
[r7-ospf-1-area-0.0.0.0]network 172.16.7.1 0.0.0.0
[r7-ospf-1-area-0.0.0.0]network 172.16.12.4 0.0.0.0
[r7-ospf-1]area 3
[r7-ospf-1-area-0.0.0.3]network 172.16.0.33 0.0.0.0//修改选举
[r7]int t0/0/0
[r7-Tunnel0/0/0]ospf dr-priority 0
[r7-Tunnel0/0/0]ospf network-type broadcast//汇总
[r7]ospf 1
[r7-ospf-1]area 0
[r7-ospf-1-area-0.0.0.0]abr-summary 172.16.12.0 255.255.255.0
[r7-ospf-1]area 3
[r7-ospf-1-area-0.0.0.3]abr-summary 172.16.0.32 255.255.255.224
[r7-ospf-1-area-0.0.0.3]nssa no-summary//area3配置完全nssa
[r7]ospf 1
[r7-ospf-1]area 3
[r7-ospf-1-area-0.0.0.3]nssa no-summary//配置动态nat
[r7]nat address-group 1 74.0.0.4 74.0.0.5
[r7]acl 2000
[r7-acl-basic-2000]rule permit source 172.16.0.32 0.0.0.31
[r7-acl-basic-2000]rule permit source 172.16.0.96 0.0.0.31
[r7-acl-basic-2000]q
[r7]int s4/0/0
[r7-Serial4/0/0]nat outbound 2000 address-group 1 no-pat
R8
//ip分配
[r8]int s4/0/0
[r8-Serial4/0/0]ip add 172.16.0.34 27
[r8-Serial4/0/0]int s4/0/1
[r8-Serial4/0/1]ip add 172.16.0.65 27
[r8-Serial4/0/1]q
[r8]int l0
[r8-LoopBack0]ip add 172.16.8.1 24//配置缺省
[r8]ip route-static 0.0.0.0 0 172.16.0.33//启动ospf
[r8]ospf 1 router-id 8.8.8.8
[r8-ospf-1]area 3
[r8-ospf-1-area-0.0.0.3]network 172.16.0.34 0.0.0.0
[r8-ospf-1-area-0.0.0.3]network 172.16.0.65 0.0.0.0
[r8-ospf-1-area-0.0.0.3]network 172.16.8.1 0.0.0.0//area3配置完全nssa
[r8]ospf 1
[r8-ospf-1]area 3
[r8-ospf-1-area-0.0.0.3]nssa
R9
//ip分配
[r9]int s4/0/0
[r9-Serial4/0/0]ip add 172.16.0.66 27
[r9-Serial4/0/0]int s4/0/1
[r9-Serial4/0/1]ip add 172.16.0.97 27
[r9-Serial4/0/1]q
[r9]int l0
[r9-LoopBack0]ip add 172.16.9.1 24//配置缺省
[r9]ip route-static 0.0.0.0 0 172.16.0.65//启动ospf
[r9]ospf 1 router-id 9.9.9.9
[r9-ospf-1]import-route ospf 2
[r9-ospf-1]area 3
[r9-ospf-1-area-0.0.0.3]network 172.16.0.66 0.0.0.0
[r9-ospf-1]area 4
[r9-ospf-1-area-0.0.0.4]network 172.16.9.1 0.0.0.0
[r9-ospf-1-area-0.0.0.4]network 172.16.0.9 0.0.0.0//汇总
[r9]ospf 1
[r9-ospf-1]asbr-summary 172.16.0.96 255.255.255.224
[r9-ospf-1]q
[r9]ospf 2
[r9-ospf-2]asbr-summary 172.16.0.32 255.255.255.224//area3配置完全nssa
[r9]ospf 1
[r9-ospf-1]area 3
[r9-ospf-1-area-0.0.0.3]nssa//防环
[r9]ip route-static 172.16.0.96 27 NULL 0
R10
//ip分配
[r10]int s4/0/0
[r10-Serial4/0/0]ip add 172.16.0.98 27
[r10-Serial4/0/0]q
[r10]int l0
[r10-LoopBack0]ip add 172.16.10.1 24//配置缺省
[r10]ip route-static 0.0.0.0 0 172.16.0.97//启动ospf
[r10]ospf 1 router-id 10.10.10.10
[r10-ospf-1]area 4
[r10-ospf-1-area-0.0.0.4]network 172.16.10.1 0.0.0.0
[r10-ospf-1-area-0.0.0.4]network 172.16.0.98 0.0.0.0
R11
//ip分配
[r11]int s4/0/0
[r11-Serial4/0/0]ip add 172.16.0.130 27
[r11-Serial4/0/0]int s4/0/1
[r11-Serial4/0/1]ip add 172.16.0.161 27
[r11-Serial4/0/1]q
[r11]int l0
[r11-LoopBack0]ip add 172.16.11.1 24//配置缺省
[r11]ip route-static 0.0.0.0 0 172.16.0.129//启动ospf
[r11]ospf 1 router-id 11.11.11.11
[r11-ospf-1]area 2
[r11-ospf-1-area-0.0.0.2]network 172.16.0.130 0.0.0.0
[r11-ospf-1-area-0.0.0.2]network 172.16.0.161 0.0.0.0
[r11-ospf-1-area-0.0.0.2]network 172.16.11.1 0.0.0.0在area2上，配置完全nssa
[r11]ospf 1
[r11-ospf-1]area 2
[r11-ospf-1-area-0.0.0.2]nssa
R12
//ip分配
[r12]int s3/0/1
[r12-Serial3/0/1]ip add 172.16.0.162 27
[r12-Serial3/0/1]q
[r12]int l0
[r12-LoopBack0]ip add 10.1.1.1 24
[r12-LoopBack0]int l1
[r12-LoopBack1]ip add 11.11.1.1 24//配置缺省
[r12]ip route-static 0.0.0.0 0 172.16.0.161//启动ospf
[r12]ospf 1 router-id 12.12.12.12
[r12-ospf-1]asbr-summary 11.1.0.0 255.255.254.0
[r12-ospf-1]asbr-summary 10.1.0.0 255.255.254.0
[r12-ospf-1]import-route rip 1
[r12-ospf-1]area 2
[r12-ospf-1-area-0.0.0.2]network 172.16.0.162 0.0.0.0
[r12]rip 1
[r12-rip-1]version 2
[r12-rip-1]network 10.0.0.0
[r12-rip-1]network 11.0.0.0//汇总
[r12]ospf 1
[r12-ospf-1]asbr-summary 10.1.1.0 255.255.255.0
[r12-ospf-1]asbr-summary 11.1.1.0 255.255.255.0在area2上，配置完全nssa
[r12]ospf 1
[r12-ospf-1]area 2
[r12-ospf-1-area-0.0.0.2]nssa
检验
