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自己做盗号网站,站长工具箱,wordpress开发主题,免费咨询律师24小时1.R5为ISP，其上只能配置IP地址;R5与其他所有直连设备间均使用公有IP;环回地址为100.1.1.1/3 2.R4设备为企业出口路由器 3.整个0SPF环境IP基于172.16.0.0/16划分 4.所有设备均可访问R5的环回; 5.减少LSA的更新里，加快收敛，保障更新安全 6…

1.R5为ISP，其上只能配置IP地址;R5与其他所有直连设备间均使用公有IP;环回地址为100.1.1.1/3

2.R4设备为企业出口路由器

3.整个0SPF环境IP基于172.16.0.0/16划分

4.所有设备均可访问R5的环回;

5.减少LSA的更新里，加快收敛，保障更新安全

6.全网可达

分析：
1.所有设备均可访问 R5 的环回
运用 OSPF ，或配置静态路由指向 100.1.1.1/3

2.整个 OSPF 环境 IP 基于 172.16.0.0/16 划分
对 172.16.0.0/16 进行子网划分

3.R5 与其他所有直连设备间均使用公有 IP
为 R5 及直连设备配置公有 IP 地址

4.R4 设备为企业出口路由器
在 R4 上配置与 R5 互联的路由策略、NAT 转换及安全策略

5.减少 LSA 的更新量，加快收敛，保障更新安全
划分 OSPF 区域，配置区域类型，启用路由认证

6.全网可达
配置 OSPF 动态路由或静态路由，确保网络各节点可达

配置

[ISP]int s 4/0/0
[ISP-Serial4/0/0]ip add 45.0.0.2 30
[ISP-Serial4/0/0]int l 0
[ISP-LoopBack0]ip add 100.1.1.1 32

[r1]int g 0/0/0
[r1-GigabitEthernet0/0/0]ip address 172.16.35.1 29
[r1-GigabitEthernet0/0/0]int l 0
[r1-LoopBack0]ip address 172.16.32.1 24
[r1-LoopBack0]ospf network-type broadcast
[r1]ospf 1 router-id 1.1.1.1
[r1-ospf-1]a 1
[r1-ospf-1-area-0.0.0.1]net
[r1-ospf-1-area-0.0.0.1]network 172.16.32.1 0.0.0.0
[r1-ospf-1-area-0.0.0.1]network 172.16.35.1 0.0.0.0

[r1]ospf 1
[r1-ospf-1]a 1
[r1-ospf-1-area-0.0.0.1]stub

[r1]int g 0/0/0
[r1-GigabitEthernet0/0/0]ospf n
[r1-GigabitEthernet0/0/0]ospf network-type p2mp

[r1-GigabitEthernet0/0/0]ospf timer hello 5

[r2]int g0/0/0
[r2-GigabitEthernet0/0/0]ip address 172.16.35.2 29
[r2-GigabitEthernet0/0/0]int l 0
[r2-LoopBack0]ip address 172.16.33.1 24
[r2-LoopBack0]ospf network-type broadcast

[r2]ospf 1 router-id 2.2.2.2
[r2-ospf-1]a 1
[r2-ospf-1-area-0.0.0.1]network 172.16.33.1 0.0.0.0
[r2-ospf-1-area-0.0.0.1]network 172.16.35.2 0.0.0.0

[r2]ospf 1
[r2-ospf-1]a 1
[r2-ospf-1-area-0.0.0.1]stub

[r2]int g 0/0/0
[r2-GigabitEthernet0/0/0]ospf n
[r2-GigabitEthernet0/0/0]ospf network-type p2mp

[r2-GigabitEthernet0/0/0]ospf timer hello 5

[r3]int g 0/0/0
[r3-GigabitEthernet0/0/0]ip address 172.16.35.3 29
[r3-GigabitEthernet0/0/0]int g 0/0/1
[r3-GigabitEthernet0/0/1]ip address 172.16.0.1 30
[r3-GigabitEthernet0/0/1]int l 0
[r3-LoopBack0]ip address 172.16.34.1 24
[r3-LoopBack0]ospf network-type broadcast

[r3]ospf 1 router-id 3.3.3.3
[r3-ospf-1]a 1
[r3-ospf-1-area-0.0.0.1]network 172.16.35.3 0.0.0.0
r3-ospf-1-area-0.0.0.1]network 172.16.34.1 0.0.0.0
[r3-ospf-1]a 0
[r3-ospf-1-area-0.0.0.0]network 172.16.0.1 0.0.0.0

[r3]ospf 1
[r3-ospf-1]a 1
[r3-ospf-1-area-0.0.0.1]abr-su
[r3-ospf-1-area-0.0.0.1]abr-summary 172.16.32.0 255.255.224.0

[r3-ospf-1]a 1
[r3-ospf-1-area-0.0.0.1]stub no-s
[r3-ospf-1-area-0.0.0.1]stub no-summary

[r3]int g 0/0/1
[r3-GigabitEthernet0/0/1]ospf network-type p2p
[r3-GigabitEthernet0/0/1]int g 0/0/0
[r3-GigabitEthernet0/0/0]ospf network-type p2mp

[r3-GigabitEthernet0/0/0]ospf timer hello 5

[r3]ospf 1
[r3-ospf-1]a 0
[r3-ospf-1-area-0.0.0.0]au
[r3-ospf-1-area-0.0.0.0]authentication-mode md5 1 c
[r3-ospf-1-area-0.0.0.0]authentication-mode md5 1 cipher 123456

[r4]int g 0/0/0
[r4-GigabitEthernet0/0/0]ip address 172.16.0.9 30
[r4-GigabitEthernet0/0/0]int g 0/0/1
[r4-GigabitEthernet0/0/1]ip address 172.16.0.2 30
[r4-GigabitEthernet0/0/1]int g 0/0/2
[r4-GigabitEthernet0/0/2]ip address 172.16.0.5 30
[r4-GigabitEthernet0/0/2]int s 4/0/1
[r4-Serial4/0/1]ip address 45.0.0.1 30

[r4]ospf 1 router-id 4.4.4.4
[r4-ospf-1]a 0
[r4-ospf-1-area-0.0.0.0]network 172.16.0.2 0.0.0.0
[r4-ospf-1-area-0.0.0.0]network 172.16.0.5 0.0.0.0
[r4-ospf-1-area-0.0.0.0]network 172.16.0.9 0.0.0.0

[r4]ospf 1
[r4-ospf-1]default-route-advertise

[r4]int g 0/0/1
[r4-GigabitEthernet0/0/1]ospf network-type p2p

[r4]ospf 1
[r4-ospf-1]a 0
[r4-ospf-1-area-0.0.0.0]authentication-mode md5 1 cipher 123456

[r4-ospf-1]acl 2000
[r4-acl-basic-2000]rule permit source 172.16.0.0 0.0.255.255
[r4-acl-basic-2000]q
[r4]int s 4/0/1
[r4-Serial4/0/1]nat outbound 2000

[r6]int g 0/0/0
[r6-GigabitEthernet0/0/0]ip add 172.16.66.1 30
[r6-GigabitEthernet0/0/0]int g 0/0/1
[r6-GigabitEthernet0/0/1]ip add 172.16.0.6 30
[r6-GigabitEthernet0/0/1]int l 0
[r6-LoopBack0]ip add 172.16.64.1 24
[r6-LoopBack0]ospf network-type broadcast

[r6]ospf 1 router-id 6.6.6.6
[r6-ospf-1]a 0
[r6-ospf-1-area-0.0.0.0]network 172.16.0.6 0.0.0.0
[r6-ospf-1] a 2
[r6-ospf-1-area-0.0.0.2]network 172.16.66.1 0.0.0.0
[r6-ospf-1-area-0.0.0.2]network 172.16.64.1 0.0.0.0

[r6]ospf 1
[r6-ospf-1]a 2
[r6-ospf-1-area-0.0.0.2]abr-summary 172.16.64.0 255.255.224.0

[r6-ospf-1]a 2
[r6-ospf-1-area-0.0.0.2]nssa no-
[r6-ospf-1-area-0.0.0.2]nssa no-summary

[r6]ospf 1
[r6-ospf-1]a 0
[r6-ospf-1-area-0.0.0.0]authentication-mode md5 1 cipher 123456

[r7]int g 0/0/0
[r7-GigabitEthernet0/0/0]ip add 172.16.0.10 30
[r7-GigabitEthernet0/0/0]int g 0/0/1
[r7-GigabitEthernet0/0/1]ip add 172.16.98.1 30
[r7-GigabitEthernet0/0/1]int l 0
[r7-LoopBack0]ip add 172.16.96.1 24
[r7-LoopBack0]ospf network-type broadcast

[r7]ospf 1 router-id 7.7.7.7
[r7-ospf-1]a 0
[r7-ospf-1-area-0.0.0.0]network 172.16.0.10 0.0.0.0
[r7-ospf-1-area-0.0.0.0]q
[r7-ospf-1]a 3
[r7-ospf-1-area-0.0.0.3]network 172.16.96.1 0.0.0.0
[r7-ospf-1-area-0.0.0.3]network 172.16.98.1 0.0.0.0

[r7]ospf 1
[r7-ospf-1]a 3
[r7-ospf-1-area-0.0.0.3]abr-summary 172.16.96.0 255.255.224.0

[r7]ospf 1
[r7-ospf-1]a 3
[r7-ospf-1-area-0.0.0.3]nssa no-summary

[r7]ospf 1
[r7-ospf-1]a 0
[r7-ospf-1-area-0.0.0.0]authentication-mode md5 1 cipher 123456

[r8]int g 0/0/0
[r8-GigabitEthernet0/0/0]ip address 172.16.98.2 30
[r8-GigabitEthernet0/0/0]int g 0/0/1
[r8-GigabitEthernet0/0/1]ip ad 172.16.98.5 30
[r8-GigabitEthernet0/0/1]int l 0
[r8-LoopBack0]ip ad 172.16.97.1 24

[r8]ospf 1 router-id 8.8.8.8
[r8-ospf-1]a 3
[r8-ospf-1-area-0.0.0.3]network 172.16.98.2 0.0.0.0
[r8-ospf-1-area-0.0.0.3]network 172.16.97.1 0.0.0.0
[r8-ospf-1-area-0.0.0.3]network 172.16.98.5 0.0.0.0

[r8]ospf 1
[r8-ospf-1]a 3
[r8-ospf-1-area-0.0.0.3]nssa

[r9]int g 0/0/0
[r9-GigabitEthernet0/0/0]ip add 172.16.98.6 30
[r9-GigabitEthernet0/0/0]int g 0/0/1
[r9-GigabitEthernet0/0/1]ip add 172.16.130.1 30
[r9-GigabitEthernet0/0/1]int l 0
[r9-LoopBack0]ip add 172.16.128.1 24
[r9-LoopBack0]ospf network-type broadcast

[r9]ospf 1 r
[r9]ospf 1 router-id 9.9.9.9
[r9-ospf-1]a 3
[r9-ospf-1-area-0.0.0.3]network 172.16.98.6 0.0.0.0
r9]ospf 2 r
[r9]ospf 2 router-id 9.9.9.9
[r9-ospf-2]a 4
[r9-ospf-2-area-0.0.0.4]network 172.16.128.1 0.0.0.0
[r9-ospf-2-area-0.0.0.4]network 172.16.130.1 0.0.0.0

[r9]ospf 1
[r9-ospf-1]import-route ospf 2
[r9-ospf-1]q
[r9]ospf 2
[r9-ospf-2]import-route ospf 1

[r9]ospf 1
[r9-ospf-1]asb
[r9-ospf-1]asbr-summary 172.16.128.0 255.255.224.0

[r9]ospf 1
[r9-ospf-1]a 3
[r9-ospf-1-area-0.0.0.3]nssa
[r9-ospf-1]ospf 2
[r9-ospf-2]default-route-advertise

[r10]int g 0/0/0
[r10-GigabitEthernet0/0/0]ip add 172.16.130.2 30
[r10-GigabitEthernet0/0/0]int l 0
[r10-LoopBack0]ip add 172.16.129.1 24
[r10-LoopBack0]ospf network-type broadcas

[r10]ospf 1 router-id 10.10.10.10
[r10-ospf-1]a 4
[r10-ospf-1-area-0.0.0.4]network 172.16.129.1 0.0.0.0
[r10-ospf-1-area-0.0.0.4]network 17[r11]int g 0/0/0
[r11-GigabitEthernet0/0/0]ip add 172.16.66.2 30
[r11-GigabitEthernet0/0/0]int g 0/0/1
[r11-GigabitEthernet0/0/1]ip add 172.16.66.5 30
[r11-GigabitEthernet0/0/1]int l 0
[r11-LoopBack0]ip add 172.16.65.1 24
[r11-LoopBack0]ospf network-type broadcast

[r11]ospf 1 router-id 11.11.11.11
[r11-ospf-1]a 2
[r11-ospf-1-area-0.0.0.2]network 172.16.65.1 0.0.0.0
[r11-ospf-1-area-0.0.0.2]network 172.16.66.5 0.0.0.0
[r11-ospf-1-area-0.0.0.2]network 172.16.66.2 0.0.0.0

[r11]ospf 1
[r11-ospf-1]a 2
[r11-ospf-1-area-0.0.0.2]nssa2.16.130.2 0.0.0.0

[r12]int g 0/0/0
[r12-GigabitEthernet0/0/0]ip add 172.16.66.6 30
[r12-GigabitEthernet0/0/0]int l 0
[r12-LoopBack0]ip add 10.1.1.1 24
[r12-LoopBack0]int l 1
[r12-LoopBack1]ip add 10.1.2.1 24

[r12]ospf 1 router-id 12.12.12.12
[r12-ospf-1]a 2
[r12-ospf-1-area-0.0.0.2]network 172.16.66.6 0.0.0.0
[r12]rip 1
[r12-rip-1]ver 2
[r12-rip-1]network 10.0.0.0

[r12]ospf 1
[r12-ospf-1]import-route rip 1

[r12]ospf 1
[r12-ospf-1]asb
[r12-ospf-1]asbr-summary 10.1.0.0 255.255.252.0

[r12]ospf 1
[r12-ospf-1]a 2
[r12-ospf-1-area-0.0.0.2]nssa