LAB 3.2: DISTRIBUTE-LIST VÀ ROUTE-MAP -

LAB 3.2: DISTRIBUTE-LIST VÀ ROUTE-MAP -

LAB 3.2: DISTRIBUTE-LIST VÀ ROUTE-MAP -

LAB 3.2: DISTRIBUTE-LIST VÀ ROUTE-MAP -

LAB 3.2: DISTRIBUTE-LIST VÀ ROUTE-MAP -
LAB 3.2: DISTRIBUTE-LIST VÀ ROUTE-MAP -
(028) 35124257 - 0933 427 079

LAB 3.2: DISTRIBUTE-LIST VÀ ROUTE-MAP

1. Yêu cầu

  1. Thực hiện định tuyến và redistribution, đảm bảo mạng hội tụ. Theo yêu cầu sau:
    • Redistribute vào EIGRP: seed metric được thiết lập với các thông số: Bandwidth = 1000 kbps, delay = 1ms, reliability = 255, load = 1, MTU =1500.
    • Redistribute vào OSPF với seed metric để như mặc định.
  2. Chỉ thực hiện redistribute các địa chỉ mạng loại private (RFC – 1918) từ OSPF qua EIGRP và ngược lại.
  3. Không cho các địa chỉ mạng private (RFC – 1918) của LAN 2 được redistribute vào LAN 1 và LAN 3.
  4. Đảm bảo :
    • R3 học được route 10.1.1.0 có metric 50 type E1
    • R3 học được route 172.16.1.0 có metric 70 type E1
    • R3 học được các route còn lại có metric 90 type E2
  5. Các địa chỉ mạng dạng public được redistribute vào vùng EIGRP với seed metric được thiết lập từ các thông số: Bandwidth = 500kbps, delay = 0,5 ms, reliability = 255, load = 1, MTU = 1500.

Bước 1: Định tuyến và Redistribute

Cấu hình:

R1

router eigrp 1

 redistribute connected

 redistribute ospf 1 metric 1000 100 255 1 1500

 network 192.168.12.0

 no auto-summary!

router ospf 1

 log-adjacency-changes

 redistribute connected subnets

 redistribute eigrp 1 subnets

 network 192.168.13.0 0.0.0.255 area 0

 

R2

router eigrp 1

 network 1.1.1.0 0.0.0.255

 network 10.1.1.0 0.0.0.255

 network 172.16.1.0 0.0.0.255

 network 192.168.1.0

 network 192.168.12.0

 no auto-summary

 

R3

router ospf 1

 log-adjacency-changes

 network 3.3.3.0 0.0.0.255 area 0

 network 10.3.3.0 0.0.0.255 area 0

 network 172.16.3.0 0.0.0.255 area 0

 network 192.168.3.0 0.0.0.255 area 0

 network 192.168.13.0 0.0.0.255 area 0

Kiểm tra bảng định tuyến, tất cả các mạng đã hội tụ:

R1

C    192.168.12.0/24 is directly connected, FastEthernet0/0

     1.0.0.0/24 is subnetted, 1 subnets

D       1.1.1.0 [90/156160] via 192.168.12.2, 00:19:38, FastEthernet0/0

C    192.168.13.0/24 is directly connected, FastEthernet0/1

     2.0.0.0/24 is subnetted, 1 subnets

C       2.2.2.0 is directly connected, Loopback0

     3.0.0.0/32 is subnetted, 1 subnets

O       3.3.3.3 [110/2] via 192.168.13.3, 00:15:49, FastEthernet0/1

     172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks

O       172.16.3.3/32 [110/2] via 192.168.13.3, 00:15:49, FastEthernet0/1

D       172.16.1.0/24 [90/156160] via 192.168.12.2, 00:19:38, FastEthernet0/0

C       172.16.2.0/24 is directly connected, Loopback1

     10.0.0.0/8 is variably subnetted, 3 subnets, 2 masks

O       10.3.3.3/32 [110/2] via 192.168.13.3, 00:15:52, FastEthernet0/1

C       10.2.2.0/24 is directly connected, Loopback2

D       10.1.1.0/24 [90/156160] via 192.168.12.2, 00:19:41, FastEthernet0/0

D    192.168.1.0/24 [90/156160] via 192.168.12.2, 00:19:42, FastEthernet0/0

C    192.168.2.0/24 is directly connected, Loopback3

     192.168.3.0/32 is subnetted, 1 subnets

O       192.168.3.3 [110/2] via 192.168.13.3, 00:15:54, FastEthernet0/1

 

R2

C    192.168.12.0/24 is directly connected, FastEthernet0/0

     1.0.0.0/24 is subnetted, 1 subnets

C       1.1.1.0 is directly connected, Loopback0

D EX 192.168.13.0/24 [170/30720] via 192.168.12.1, 00:13:51, FastEthernet0/0

     2.0.0.0/24 is subnetted, 1 subnets

D EX    2.2.2.0 [170/156160] via 192.168.12.1, 00:13:51, FastEthernet0/0

     3.0.0.0/32 is subnetted, 1 subnets

D EX    3.3.3.3 [170/2588160] via 192.168.12.1, 00:14:59, FastEthernet0/0

     172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks

D EX    172.16.3.3/32

           [170/2588160] via 192.168.12.1, 00:14:59, FastEthernet0/0

C       172.16.1.0/24 is directly connected, Loopback2

D EX    172.16.2.0/24 [170/156160] via 192.168.12.1, 00:13:51, FastEthernet0/0

     10.0.0.0/8 is variably subnetted, 3 subnets, 2 masks

D EX    10.3.3.3/32 [170/2588160] via 192.168.12.1, 00:14:59, FastEthernet0/0

D EX    10.2.2.0/24 [170/156160] via 192.168.12.1, 00:13:52, FastEthernet0/0

C       10.1.1.0/24 is directly connected, Loopback1

C    192.168.1.0/24 is directly connected, Loopback3

D EX 192.168.2.0/24 [170/156160] via 192.168.12.1, 00:13:52, FastEthernet0/0

     192.168.3.0/32 is subnetted, 1 subnets

D EX    192.168.3.3 [170/2588160] via 192.168.12.1, 00:15:00, FastEthernet0/0

 

R3

O E2 192.168.12.0/24 [110/20] via 192.168.13.1, 00:16:31, FastEthernet0/1

     1.0.0.0/24 is subnetted, 1 subnets

O E2    1.1.1.0 [110/20] via 192.168.13.1, 00:16:31, FastEthernet0/1

C    192.168.13.0/24 is directly connected, FastEthernet0/1

     2.0.0.0/24 is subnetted, 1 subnets

O E2    2.2.2.0 [110/20] via 192.168.13.1, 00:14:16, FastEthernet0/1

     3.0.0.0/24 is subnetted, 1 subnets

C       3.3.3.0 is directly connected, Loopback0

     172.16.0.0/24 is subnetted, 3 subnets

O E2    172.16.1.0 [110/20] via 192.168.13.1, 00:16:31, FastEthernet0/1

O E2    172.16.2.0 [110/20] via 192.168.13.1, 00:14:16, FastEthernet0/1

C       172.16.3.0 is directly connected, Loopback2

     10.0.0.0/24 is subnetted, 3 subnets

C       10.3.3.0 is directly connected, Loopback1

O E2    10.2.2.0 [110/20] via 192.168.13.1, 00:14:17, FastEthernet0/1

O E2    10.1.1.0 [110/20] via 192.168.13.1, 00:16:33, FastEthernet0/1

O E2 192.168.1.0/24 [110/20] via 192.168.13.1, 00:16:33, FastEthernet0/1

O E2 192.168.2.0/24 [110/20] via 192.168.13.1, 00:14:17, FastEthernet0/1

C    192.168.3.0/24 is directly connected, Loopback3

Bước 2: Chỉ thực hiện redistribute các địa chỉ mạng loại private (RFC – 1918) từ EIGRP qua OSPF và ngược lại

R1(config)#access-list 1 permit 10.0.0.0 0.255.255.255

R1(config)#access-list 1 permit 172.16.0.0 0.0.255.255

R1(config)#access-list 1 permit 192.168.0.0 0.0.255.255

R1(config)#router eigrp 1

R1(config-router)#distribute-list 1 out ospf 1

R1(config)#router ospf 1

R1(config-router)#distribute-list 1 out eigrp 1

Kiểm tra lại bảng định tuyến R2:

R2#show ip route

(đã bỏ qua một số dòng)

C    192.168.12.0/24 is directly connected, FastEthernet0/0

     1.0.0.0/24 is subnetted, 1 subnets

C       1.1.1.0 is directly connected, Loopback0

D EX 192.168.13.0/24 [170/30720] via 192.168.12.1, 00:00:08, FastEthernet0/0

     2.0.0.0/24 is subnetted, 1 subnets

D EX    2.2.2.0 [170/156160] via 192.168.12.1, 00:00:08, FastEthernet0/0

     172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks

D EX    172.16.3.3/32 [170/2588160] via 192.168.12.1, 00:00:08, FastEthernet0/0

C       172.16.1.0/24 is directly connected, Loopback2

D EX    172.16.2.0/24 [170/156160] via 192.168.12.1, 00:00:08, FastEthernet0/0

     10.0.0.0/8 is variably subnetted, 3 subnets, 2 masks

D EX    10.3.3.3/32 [170/2588160] via 192.168.12.1, 00:00:08, FastEthernet0/0

D EX    10.2.2.0/24 [170/156160] via 192.168.12.1, 00:00:09, FastEthernet0/0

C       10.1.1.0/24 is directly connected, Loopback1

C    192.168.1.0/24 is directly connected, Loopback3

D EX 192.168.2.0/24 [170/156160] via 192.168.12.1, 00:00:09, FastEthernet0/0

     192.168.3.0/32 is subnetted, 1 subnets

D EX    192.168.3.3 [170/2588160] via 192.168.12.1, 00:00:11, FastEthernet0/0

Bước 3: Không cho các địa chỉ mạng private (RFC – 1918) của LAN 2 được redistribute vào LAN 1 và LAN 3

Tạo access-list 3, chặn các route dạng private, chỉ cho qua các route dạng public (2.2.2.2):

R1(config)#access-list 3 deny 10.0.0.0 0.255.255.255

R1(config)#access-list 3 deny 172.16.0.0 0.0.255.255

R1(config)#access-list 3 deny 192.168.0.0 0.0.255.255

R1(config)#access-list 3 permit any

Tạo Distribute-list:

R1(config)#router eigrp 1

R1(config-router)#distribute-list 3 out connected

R1(config-router)#router ospf 1

R1(config-router)#distribute-list 3

R1(config-router)#distribute-list 3 out connected

Xem lại bảng định tuyến R2:

R2#show ip route

(đã bỏ qua một số dòng)

C    192.168.12.0/24 is directly connected, FastEthernet0/0

     1.0.0.0/24 is subnetted, 1 subnets

C       1.1.1.0 is directly connected, Loopback0

     2.0.0.0/24 is subnetted, 1 subnets

D EX    2.2.2.0 [170/156160] via 192.168.12.1, 00:00:06, FastEthernet0/0

     172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks

D EX    172.16.3.3/32

           [170/2588160] via 192.168.12.1, 00:00:06, FastEthernet0/0

C       172.16.1.0/24 is directly connected, Loopback2

     10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

D EX    10.3.3.3/32 [170/2588160] via 192.168.12.1, 00:00:06, FastEthernet0/0

C       10.1.1.0/24 is directly connected, Loopback1

C    192.168.1.0/24 is directly connected, Loopback3

     192.168.3.0/32 is subnetted, 1 subnets

D EX    192.168.3.3 [170/2588160] via 192.168.12.1, 00:00:06, FastEthernet0/0

Bước 4: Đảm bảo:

  • R3 học được route 10.1.1.0 có metric 50 type E1.
  • R3 học được route 172.16.1.0 có metric 70 type E1.
  • R3 học được các route còn lại có metric 90 type E2.

Quan sát bảng định tuyến hiện tại của R3:

R3#show ip route

(đã bỏ qua một số dòng)

C    192.168.13.0/24 is directly connected, FastEthernet0/1

     2.0.0.0/24 is subnetted, 1 subnets

O E2    2.2.2.0 [110/20] via 192.168.13.1, 00:33:38, FastEthernet0/1

     3.0.0.0/24 is subnetted, 1 subnets

C       3.3.3.0 is directly connected, Loopback0

     172.16.0.0/24 is subnetted, 2 subnets

O E2    172.16.1.0 [110/20] via 192.168.13.1, 00:03:45, FastEthernet0/1

C       172.16.3.0 is directly connected, Loopback2

     10.0.0.0/24 is subnetted, 2 subnets

C       10.3.3.0 is directly connected, Loopback1

O E2    10.1.1.0 [110/20] via 192.168.13.1, 00:03:45, FastEthernet0/1

O E2 192.168.1.0/24 [110/20] via 192.168.13.1, 00:03:45, FastEthernet0/1

C    192.168.3.0/24 is directly connected, Loopback3

Ta sử dụng redistribute kèm với route – map để đáp ứng yêu cầu này:

R1(config)#access-list 10 permit 10.1.1.0 0.0.0.255

R1(config)#access-list 20 permit 172.16.1.0 0.0.0.255

R1(config)#access-list 30 permit any

R1(config)#route-map cau4 permit 10

R1(config-route-map)#match ip add 10

R1(config-route-map)#set metric 49

R1(config-route-map)#set metric-type type-1

R1(config-route-map)#exit

R1(config)#route-map cau4 permit 20

R1(config-route-map)#match ip add 20

R1(config-route-map)#set metric 69

R1(config-route-map)#set metric-type type-1

R1(config-route-map)#exit

R1(config)#route-map cau4 permit 30

R1(config-route-map)#match ip add 30

R1(config-route-map)#set metric 90

R1(config-route-map)#set metric-type type-2

R1(config)#router ospf 1

R1(config-router)#redistribute connected route-map cau4 subnets

R1(config-router)#redistribute eigrp 1 route-map cau4 subnets

Xem lại bảng định tuyến R3:

R3#show ip route

(đã bỏ qua một số dòng)

C    192.168.13.0/24 is directly connected, FastEthernet0/1

     2.0.0.0/24 is subnetted, 1 subnets

O E2    2.2.2.0 [110/90] via 192.168.13.1, 00:05:28, FastEthernet0/1

     3.0.0.0/24 is subnetted, 1 subnets

C       3.3.3.0 is directly connected, Loopback0

     172.16.0.0/24 is subnetted, 2 subnets

O E1    172.16.1.0 [110/70] via 192.168.13.1, 00:00:34, FastEthernet0/1

C       172.16.3.0 is directly connected, Loopback2

     10.0.0.0/24 is subnetted, 2 subnets

C       10.3.3.0 is directly connected, Loopback1

O E1    10.1.1.0 [110/50] via 192.168.13.1, 00:01:34, FastEthernet0/1

O E2 192.168.1.0/24 [110/90] via 192.168.13.1, 00:05:08, FastEthernet0/1

C    192.168.3.0/24 is directly connected, Loopback3

Bước 5: Các địa chỉ mạng dạng public được redistribute vào vùng EIGRP với seed metric được thiết lập từ các thông số: Bandwidth = 500 kbps, delay = 0,5 ms, reliability = 255, load = 1, MTU = 1500.

Sử dụng access-list 1 đã tạo ở trên:

access-list 1 permit 192.168.0.0 0.0.255.255

access-list 1 permit 172.16.0.0 0.0.255.255

access-list 1 permit 10.0.0.0 0.255.255.255

Tạo các route – map:

route-map cau5 permit 10

 match ip address 1

 set metric 1000 100 255 1 1500

!

route-map cau5 permit 20

 set metric 500 50 255 1 1500

Sử dụng route – map này trong câu lệnh redistribute:

router eigrp 1

 redistribute connected route-map cau5

 redistribute ospf 1 metric 1000 100 255 1 1500

Kiểm tra kết quả:

R2#show ip route 2.2.2.2

Routing entry for 2.2.2.0/24

  Known via "eigrp 1", distance 170, metric 5135360, type external

  Redistributing via eigrp 1

  Last update from 192.168.12.1 on FastEthernet0/0, 00:05:15 ago

  Routing Descriptor Blocks:

  * 192.168.12.1, from 192.168.12.1, 00:05:15 ago, via FastEthernet0/0

      Route metric is 5135360, traffic share count is 1

      Total delay is 600 microseconds, minimum bandwidth is 500 Kbit

      Reliability 255/255, minimum MTU 1500 bytes

      Loading 1/255, Hops 1

Các Route private vẫn giữ seed metric như cũ (được thiết lập từ bộ thông số: 1000 100 255 1 1500):

R2#sh ip ro 192.168.3.3

Routing entry for 192.168.3.3/32

  Known via "eigrp 1", distance 170, metric 2588160, type external

  Redistributing via eigrp 1

  Last update from 192.168.12.1 on FastEthernet0/0, 00:29:03 ago

  Routing Descriptor Blocks:

  * 192.168.12.1, from 192.168.12.1, 00:29:03 ago, via FastEthernet0/0

      Route metric is 2588160, traffic share count is 1

      Total delay is 1100 microseconds, minimum bandwidth is 1000 Kbit

      Reliability 255/255, minimum MTU 1500 bytes

      Loading 1/255, Hops 1

2. Cấu hình cuối cùng

R1

interface Loopback0

 ip address 2.2.2.2 255.255.255.0

!

interface Loopback1

 ip address 172.16.2.2 255.255.255.0

!

 interface Loopback2

 ip address 10.2.2.2 255.255.255.0

!

interface Loopback3

 ip address 192.168.2.2 255.255.255.0

!

interface FastEthernet0/0

 ip address 192.168.12.1 255.255.255.0

 duplex auto

 speed auto

!

interface FastEthernet0/1

 ip address 192.168.13.1 255.255.255.0

 duplex auto

 speed auto

!

router eigrp 1

 redistribute connected route-map cau5

 redistribute ospf 1 metric 1000 100 255 1 1500

 network 192.168.12.0

 distribute-list 3 out connected

 distribute-list 1 out ospf 1

 no auto-summary

 --More--

router ospf 1

 log-adjacency-changes

 redistribute connected subnets route-map cau4

 redistribute eigrp 1 subnets route-map cau4

 network 192.168.13.0 0.0.0.255 area 0

 distribute-list 3 out connected

 distribute-list 1 out eigrp 1

!

ip classless

!

access-list 1 permit 192.168.0.0 0.0.255.255

access-list 1 permit 172.16.0.0 0.0.255.255

access-list 1 permit 10.0.0.0 0.255.255.255

access-list 3 deny   10.0.0.0 0.255.255.255

access-list 3 deny   172.16.0.0 0.0.255.255

access-list 3 deny   192.168.0.0 0.0.255.255

access-list 3 permit any

access-list 10 permit 10.1.1.0 0.0.0.255

access-list 20 permit 172.16.1.0 0.0.0.255

access-list 30 permit any

!

route-map cau5 permit 10

 match ip address 1

 set metric 1000 100 255 1 1500

!

route-map cau5 permit 20

 set metric 500 50 255 1 1500

!

route-map cau4 permit 10

 match ip address 10

 set metric 49

 set metric-type type-1

!

route-map cau4 permit 20

 match ip address 20

 set metric 69

 set metric-type type-1

!

route-map cau4 permit 30

 match ip address 30

 set metric 90

 set metric-type type-2

 

R2

interface Loopback0

 ip address 1.1.1.1 255.255.255.0

!

interface Loopback1

 ip address 10.1.1.1 255.255.255.0

!

interface Loopback2

ip address 172.16.1.1 255.255.255.0

!

interface Loopback3

 ip address 192.168.1.1 255.255.255.0

!

interface FastEthernet0/0

 ip address 192.168.12.2 255.255.255.0

 duplex auto

 speed auto

!

interface FastEthernet0/1

 no ip address

 shutdown

 duplex auto

 speed auto

!

router eigrp 1

 network 1.1.1.0 0.0.0.255

 network 10.1.1.0 0.0.0.255

 network 172.16.1.0 0.0.0.255

 network 192.168.1.0

 network 192.168.12.0

 no auto-summary

 

R3

interface Loopback0

 ip address 3.3.3.3 255.255.255.0

!

interface Loopback1

 ip address 10.3.3.3 255.255.255.0

!

interface Loopback2

 ip address 172.16.3.3 255.255.255.0

!

interface Loopback3

 ip address 192.168.3.3 255.255.255.0

!

interface FastEthernet0/0

 no ip address

 shutdown

 duplex auto

 speed auto

!

interface FastEthernet0/1

 ip address 192.168.13.3 255.255.255.0

 duplex auto

 speed auto

!

router ospf 1

 log-adjacency-changes

 network 3.3.3.0 0.0.0.255 area 0

 network 10.3.3.0 0.0.0.255 area 0

 network 172.16.3.0 0.0.0.255 area 0

 network 192.168.3.0 0.0.0.255 area 0

  network 192.168.13.0 0.0.0.255 area 0


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