题目:
思路:
首先配置每个区域的路由和环回地址,其次,根据题目要求打通每个网络的连接,区域0用MGRE打通网络,区域4需要重发布,其次再考虑优化的问题。ip地址的规划是为了更好的路由汇总,并把规划好的ip地址分配给题目中的两个协议:(ip规划)
172.16.0.0/16 172.16.0.0/25 172.16.0.128/25
仅需要两个ip地址骨干 – 172.16.0.0/25 172.16.0.0/30
多个ip地址需要的骨干网段–172.16.0.128/25172.16.0.128/29
终端 -用户 172.16.1.0/25 172.16.1.128/25—172.16.31.128/25
172.16.0.0/19 A0
172.16.32.0/19 A1
172.16.64.0/19 A2
172.16.96.0/19 A3
172.16.128.0/19 A4
172.16.160.0/19 RIP
172.16.192.0/19
172.16.224.0/19
路由器的配置:
R1:
[r1]int lo0
[r1-LoopBack0]ip add 172.16.33.1 25
[r1]int g0/0/0
[r1-GigabitEthernet0/0/0]ip add 172.16.32.129 29
[r1]ospf 1 router-id 1.1.1.1
[r1-ospf-1]area 1
[r1-ospf-1-area-0.0.0.1]network 172.16.0.0 0.0.255.255
[r1]ospf 1
[r1-ospf-1]area 1
[r1-ospf-1-area-0.0.0.1]stub
R2:
[r2]int lo0
[r2-LoopBack0]ip add 172.16.33.129 25
[r2]int g0/0/0
[r2-GigabitEthernet0/0/0]ip add 172.16.32.130 29
[r2]ospf 1 router-id 2.2.2.2
[r2-ospf-1]area 1
[r2-ospf-1-area-0.0.0.1]network 172.16.0.0 0.0.255.255
[r2]ospf 1
[r2-ospf-1]area 1
[r2-ospf-1-area-0.0.0.1]stub
R3:
[r3]int g0/0/2
[r3-GigabitEthernet0/0/2]ip add 34.1.1.1 24
[r3]ip route-static 0.0.0.0 0 34.1.1.2
[r3]interface Tunnel 0/0/0
[r3-Tunnel0/0/0]ip address 172.16.0.129 29
[r3-Tunnel0/0/0]tunnel-protocol gre p2mp
[r3-Tunnel0/0/0]source 34.1.1.1
[r3-Tunnel0/0/0]nhrp entry multicast dynamic
[r3]int lo0
[r3-LoopBack0]ip add 172.16.34.1 25
[r3]int g0/0/0
[r3-GigabitEthernet0/0/0]ip add 172.16.32.131 29
[r3]ospf 1 router-id 3.3.3.3
[r3-ospf-1]area 1
[r3-ospf-1-area-0.0.0.1]network 172.16.32.0 0.0.31.255
[r3-ospf-1-area-0.0.0.1]area 0
[r3-ospf-1-area-0.0.0.0]network 172.16.0.129 0.0.0.0
[r3-Tunnel0/0/0]ospf network-type broadcast
[r3]ospf 1
[r3-ospf-1]area 1
[r3-ospf-1-area-0.0.0.1]stub no-summary
[r3]ospf 1
[r3-ospf-1]area 1
[r3-ospf-1-area-0.0.0.1]abr-summary 172.16.32.0 255.255.224.0
[r3]ip route-static 172.16.32.0 19 NULL 0
[r3]acl 2000
[r3]int g0/0/2
[r3-GigabitEthernet0/0/2]nat outbound 2000
R4:
[r4]int g0/0/0
[r4-GigabitEthernet0/0/0]ip add 34.1.1.2 24
[r4-GigabitEthernet0/0/0]int g0/0/1
[r4-GigabitEthernet0/0/1]ip add 45.1.1.2 24
[r4-GigabitEthernet0/0/1]int g0/0/2
[r4-GigabitEthernet0/0/2]ip add 46.1.1.2 24
[r4-GigabitEthernet0/0/2]int g4/0/0
[r4-GigabitEthernet4/0/0]ip add 47.1.1.2 24
[r4-GigabitEthernet4/0/0]int lo0
[r4-LoopBack0]ip add 4.4.4.4 24
R5:
[r5]int g0/0/2
[r5-GigabitEthernet0/0/2]ip add 45.1.1.1 24
[r5]ip route-static 0.0.0.0 0 45.1.1.2
[r5]interface Tunnel 0/0/0
[r5-Tunnel0/0/0]ip add 172.16.0.130 29
[r5-Tunnel0/0/0]tunnel-protocol gre p2mp
[r5-Tunnel0/0/0]source GigabitEthernet 0/0/2
[r5-Tunnel0/0/0]nhrp entry 172.16.0.129 34.1.1.1 register
[r5]int lo0
[r5-LoopBack0]ip add 172.16.1.1 25
[r5]ospf 1 router-id 5.5.5.5
[r5-ospf-1]area 0
[r5-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.255.255
[r5-Tunnel0/0/0]ospf network-type broadcast
[r5-Tunnel0/0/0]ospf dr-priority 0
R6:
[r6]int g0/0/2
[r6-GigabitEthernet0/0/2]ip add 46.1.1.1 24
[r6]ip route-static 0.0.0.0 0 46.1.1.2
[r6]interface Tunnel 0/0/0
[r6-Tunnel0/0/0]ip add 172.16.0.131 29
[r6-Tunnel0/0/0]tunnel-protocol gre p2mp
[r6-Tunnel0/0/0]source GigabitEthernet 0/0/2
[r6-Tunnel0/0/0]nhrp entry 172.16.0.129 34.1.1.1 register
[r6]int lo0
[r6-LoopBack0]ip add 172.16.1.129 25
[r6]int g0/0/1
[r6-GigabitEthernet0/0/1]ip add 172.16.64.1 30
[r6]ospf 1 router-id 6.6.6.6
[r6-ospf-1]area 0
[r6-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.1.255
[r6-ospf-1]area 2
[r6-ospf-1-area-0.0.0.2]network 172.16.64.0 0.0.0.255
[r6-Tunnel0/0/0]ospf network-type broadcast
[r6-Tunnel0/0/0]ospf dr-priority 0
[r6]ospf 1
[r6-ospf-1]area 2
[r6-ospf-1-area-0.0.0.2]nssa no-summary
[r6]ospf 1
[r6-ospf-1]area 2
[r6-ospf-1-area-0.0.0.2]abr-summary 172.16.64.0 255.255.224.0
[r6]ip route-static 172.16.64.0 19 NULL 0
[r6]acl 2000
[r6-acl-basic-2000]rule permit source 172.16.0.0 0.0.255.255
[r6-acl-basic-2000]int g0/0/2
[r6-GigabitEthernet0/0/2]nat outbound 2000
R7:
[r7]int g0/0/2
[r7-GigabitEthernet0/0/2]ip add 47.1.1.1 24
[r7]ip route-static 0.0.0.0 0 47.1.1.2
[r7]int Tunnel 0/0/0
[r7-Tunnel0/0/0]ip add 172.16.0.132 29
[r7-Tunnel0/0/0]tunnel-protocol gre p2mp
[r7-Tunnel0/0/0]source GigabitEthernet 0/0/2
[r7-Tunnel0/0/0]nhrp entry 172.16.0.129 34.1.1.1 register
[r7]int lo0
[r7-LoopBack0]ip add 172.16.2.1 25
[r7-LoopBack0]int g0/0/1
[r7-GigabitEthernet0/0/1]ip add 172.16.96.1 30
[r7]ospf 1 router-id 7.7.7.7
[r7-ospf-1]area 0
[r7-ospf-1-area-0.0.0.0]network 172.16.0.0 0.0.3.255
[r7-ospf-1]area 3
[r7-ospf-1-area-0.0.0.3]network 172.16.96.0 0.0.0.255
[r7-Tunnel0/0/0]ospf network-type broadcast
[r7-Tunnel0/0/0]ospf dr-priority 0
[r7]ospf 1
[r7-ospf-1]area 3
[r7-ospf-1-area-0.0.0.3]nssa no-summary
[r7]ospf 1
[r7-ospf-1]area 3
[r7-ospf-1-area-0.0.0.3]abr-summary 172.16.96.0 255.255.224.0
[r7]ip route-static 172.16.96.0 19 NULL 0
[r7]acl 2000
[r7-acl-basic-2000]rule permit source 172.16.0.0 0.0.255.255
[r7-acl-basic-2000]int g0/0/2
[r7-GigabitEthernet0/0/2]nat outbound 2000
R8:
[r8]int lo0
[r8-LoopBack0]ip add 172.16.97.1 25
[r8]int g0/0/0
[r8-GigabitEthernet0/0/0]ip add 172.16.96.2 30
[r8-GigabitEthernet0/0/0]int g0/0/1
[r8-GigabitEthernet0/0/1]ip add 172.16.96.5 30
[r8]ospf 1 router-id 8.8.8.8
[r8-ospf-1]area 3
[r8-ospf-1-area-0.0.0.3]network 172.16.0.0 0.0.255.255
[r8-ospf-1]area 3
[r8-ospf-1-area-0.0.0.3]nssa
R9:
[r9]int g0/0/0
[r9-GigabitEthernet0/0/0]ip add 172.16.96.6 30
[r9]int g0/0/1
[r9-GigabitEthernet0/0/1]ip add 172.16.128.1 30
[r9]int lo0
[r9-LoopBack0]ip add 176.16.129.1 25
[r9]ospf 1 router-id 9.9.9.9
[r9-ospf-1]area 3
[r9-ospf-1-area-0.0.0.3]network 172.16.96.0 0.0.0.255
[r9-ospf-1]area 4
[r9-ospf-1-area-0.0.0.4]network 172.16.128.0 0.0.1.255
[r9-ospf-1-area-0.0.0.4]undo network 172.16.128.0 0.0.1.255
[r9-ospf-1-area-0.0.0.4]ospf 2
[r9-ospf-2]area 4
[r9-ospf-2-area-0.0.0.4]network 172.16.128.0 0.0.1.255
[r9]ospf 1
[r9-ospf-1]import-route ospf 2
[r9]ospf 2
[r9-ospf-2]import-route ospf 1
[r9]ospf 1
[r9-ospf-1]area 3
[r9-ospf-1-area-0.0.0.3]nssa
[r9-ospf-2]undo import-route ospf 1
[r9-ospf-2]default-route-advertise
[r9]ospf 1
[r9-ospf-1]asbr-summary 172.16.128.0 255.255.224.0
[r9]ip route-static 172.16.128.0 19 NULL 0
R10:
[r10]int lo0
[r10-LoopBack0]ip add 172.16.129.129 25
[r10]int g0/0/0
[r10-GigabitEthernet0/0/0]ip add 172.16.128.2 30
[r10]ospf 1 router-id 10.10.10.10
[r10-ospf-1]area 4
[r10-ospf-1-area-0.0.0.4]network 172.16.0.0 0.0.255.255
R11:
[r11]int lo0
[r11-LoopBack0]ip add 172.16.65.1 25
[r11]int g0/0/0
[r11-GigabitEthernet0/0/0]ip add 172.16.64.2 30
[r11-GigabitEthernet0/0/0]int g0/0/1
[r11-GigabitEthernet0/0/1]ip add 172.16.64.5 30
[r11]ospf 1 router-id 11.11.11.11
[r11-ospf-1]area 2
[r11-ospf-1-area-0.0.0.2]network 172.16.0.0 0.0.255.255
[r11]ospf 1
[r11-ospf-1]area 2
[r11-ospf-1-area-0.0.0.2]nssa
R12:
[r12]int g0/0/0
[r12-GigabitEthernet0/0/0]ip add 172.16.64.6 30
[r12]int lo0
[r12-LoopBack0]ip add 172.16.160.1 20
[r12-LoopBack0]int lo01
[r12-LoopBack1]ip add 172.16.176.1 20
[r12]ospf 1 router-id 12.12.12.12
[r12-ospf-1]area 2
[r12-ospf-1-area-0.0.0.2]network 172.16.64.6 0.0.0.0
[r12]rip 1
[r12-rip-1]network 172.16.0.0
[r12]ospf 1
[r12-ospf-1]area 2
[r12-ospf-1-area-0.0.0.2]nssa
[r12]ospf 1
[r12-ospf-1]asbr-summary 172.16.160.0 255.255.224.0
[r12]ip route-static 172.16.160.0 19 NULL 0
验证命令:
减少LSA的并发:减少数据库中LSA的条目数据,但是仍旧能够使路由之间能够通信,达到高效率的要求。优化LSA,其中就是对4.5.7类缺省的减少,从而较少路由条目数据库的量。