Shulou(Shulou.com)06/01 Report--

Theoretical study

What are the characteristics of the problem 1:EIGRP?

EIGRP is an internal gateway protocol, which is used to perform routing functions in home-made systems. It is a classless routing protocol and is an advanced distance vector routing protocol.

Routing information is exchanged with routers running EIGRP after a neighbor relationship is formed by sending Hello packets.

Routers running EIGRP store all routing table information with their neighboring routers

EIGRP adopts multicast and unicast update methods, and routing updates are carried out only when the router changes the measurement standard or the topology changes.

Support variable length subnet mask and discontiguous subnets, support automatic route summarization, support a variety of network layer protocols, and support IPX,AppleTake.

Inside a router running EIGRP, there is a neighbor routing table, a topology table, and a routing table.

Using DUAL algorithm, it has good routing convergence characteristics.

Any load balancer is supported.

What is the operation of the problem 2:EIGRP?

Establish an adjacent relationship

Discover the network topology and choose the shortest route

Routing queries, updates

What is the difference between 3:EIGRP and RIP?

EIGRP is proprietary to Cisco, while RIP is a generic protocol

EIGRP is an advanced distance vector protocol RIP is a distance vector protocol

Task implementation

1. Network topology design

1. Device configuration commands (each router is configured separately)

R1

R1 (config) # in

R1 (config) # interface f0bin0

R1 (config-if) # ip add 10.1.1.1 255.255.255.0

R1 (config-if) # no shu

R1 (config-if) # no shutdown

R1 (config-if) #

% LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up

% LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up

R1 (config-if) # exi

R1 (config) # in

R1 (config) # interface f0bin1

R1 (config-if) # ip add 172.16.1.1 255.255.255.252

R1 (config-if) # no shu

R1 (config-if) # no shutdown

R1 (config-if) #

% LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up

R1 (config) # router eigrp 10

R1 (config-router) # no auto-summary

R1 (config-router) # network 172.16.1.0 0.0.0.3

R1 (config-router) # network 10.1.1.0 0.0.0.255

CNC

CNC (config) # in

CNC (config) # interface f0and0

CNC (config-if) # ip add 172.16.1.2 255.255.255.252

CNC (config-if) # no shu

CNC (config-if) # no shutdown

CNC (config-if) #

% LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up

% LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up

CNC (config-if) # ex

CNC (config) # in

CNC (config) # interface f0bin1

CNC (config-if) # ip add 172.16.1.5 255.255.255.252

CNC (config-if) # no shu

CNC (config-if) # no shutdown

CNC (config-if) #

% LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up

CNC (config) # router eigrp 10

CNC (config-router) # no a

CNC (config-router) # no auto-summary

CNC (config-router) # ne

CNC (config-router) # network 172.16.1.0 0.0.0.3

CNC (config-router) #

% DUAL-5-NBRCHANGE: IP-EIGRP 10: Neighbor 172.16.1.1 (FastEthernet0/0) is up: new adjacency

CNC (config-router) # network 172.16.1.4 0.0.0.3

R2

R2 (config) # in

R2 (config) # interface f0and0

R2 (config-if) # ip add 172.16.1.6 255.255.255.252

R2 (config-if) # no shu

R2 (config-if) # no shutdown

R2 (config-if) #

% LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up

% LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up

R2 (config-if) # ex

R2 (config) # in

R2 (config) # interface f0bin1

R2 (config-if) # ip add 10.1.2.1 255.255.255.0

R2 (config-if) # no shu

R2 (config-if) # no shutdown

R2 (config-if) #

% LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up

% LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up

R2 (config) # rou

R2 (config) # router e

R2 (config) # router eigrp 10

R2 (config-router) # no a

R2 (config-router) # no auto-summary

R2 (config-router) # ne

R2 (config-router) # network 172.16.1.4 0.0.0.3

R2 (config-router) #

% DUAL-5-NBRCHANGE: IP-EIGRP 10: Neighbor 172.16.1.5 (FastEthernet0/0) is up: new adjacency

R2 (config-router) # ne

R2 (config-router) # network 10.1.2.0 0.0.0.255

1. Single-stage test results

PC1

PC > ping 10.1.1.1

Pinging 10.1.1.1 with 32 bytes of data:

Reply from 10.1.1.1: bytes=32 time=0ms TTL=255

Reply from 10.1.1.1: bytes=32 time=0ms TTL=255

Reply from 10.1.1.1: bytes=32 time=0ms TTL=255

Reply from 10.1.1.1: bytes=32 time=1ms TTL=255

Ping statistics for 10.1.1.1:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss)

Approximate round trip times in milli-seconds:

Minimum = 0ms, Maximum = 1ms, Average = 0ms

PC2

PC > PING 10.1.2.1

Pinging 10.1.2.1 with 32 bytes of data:

Reply from 10.1.2.1: bytes=32 time=0ms TTL=255

Reply from 10.1.2.1: bytes=32 time=0ms TTL=255

Reply from 10.1.2.1: bytes=32 time=0ms TTL=255

Reply from 10.1.2.1: bytes=32 time=1ms TTL=255

Ping statistics for 10.1.2.1:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss)

Approximate round trip times in milli-seconds:

Minimum = 0ms, Maximum = 1ms, Average = 0ms

1. Comprehensive test results

PC1

PC > ping 10.1.2.2

Pinging 10.1.2.2 with 32 bytes of data:

Reply from 10.1.2.2: bytes=32 time=1ms TTL=125

Reply from 10.1.2.2: bytes=32 time=1ms TTL=125

Reply from 10.1.2.2: bytes=32 time=0ms TTL=125

Reply from 10.1.2.2: bytes=32 time=1ms TTL=125

Ping statistics for 10.1.2.2:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss)

Approximate round trip times in milli-seconds:

Minimum = 0ms, Maximum = 1ms, Average = 0ms

PC2

PC > PING 10.1.1.2

Pinging 10.1.1.2 with 32 bytes of data:

Reply from 10.1.1.2: bytes=32 time=0ms TTL=125

Reply from 10.1.1.2: bytes=32 time=0ms TTL=125

Reply from 10.1.1.2: bytes=32 time=0ms TTL=125

Reply from 10.1.1.2: bytes=32 time=1ms TTL=125

Ping statistics for 10.1.1.2:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss)

Approximate round trip times in milli-seconds:

Minimum = 0ms, Maximum = 1ms, Average = 0ms

two。 View routes for each router

R1

R1#SHOW IP ROUTE

Codes: C-connected, S-static, I-IGRP, R-RIP, M-mobile, B-BGP

D-EIGRP, EX-EIGRP external, O-OSPF, IA-OSPF inter area

N1-OSPF NSSA external type 1, N2-OSPF NSSA external type 2

E1-OSPF external type 1, E2-OSPF external type 2, E-EGP

I-IS-IS, L1-IS-IS level-1, L2-IS-IS level-2, ia-IS-IS inter area

*-candidate default, U-per-user static route, o-ODR

P-periodic downloaded static route

Gateway of last resort is not set

10.0.0.0/24 is subnetted, 2 subnets

C 10.1.1.0 is directly connected, FastEthernet0/0

D 10.1.2.0 [90/33280] via 172.16.1.2, 00:03:27, FastEthernet0/1

172.16.0.0/30 is subnetted, 2 subnets

C 172.16.1.0 is directly connected, FastEthernet0/1

D 172.16.1.4 [90/30720] via 172.16.1.2, 00:04:48, FastEthernet0/1

CNC

CNC#SHOW IP ROUTE

Codes: C-connected, S-static, I-IGRP, R-RIP, M-mobile, B-BGP

D-EIGRP, EX-EIGRP external, O-OSPF, IA-OSPF inter area

N1-OSPF NSSA external type 1, N2-OSPF NSSA external type 2

E1-OSPF external type 1, E2-OSPF external type 2, E-EGP

I-IS-IS, L1-IS-IS level-1, L2-IS-IS level-2, ia-IS-IS inter area

*-candidate default, U-per-user static route, o-ODR

P-periodic downloaded static route

Gateway of last resort is not set

10.0.0.0/24 is subnetted, 2 subnets

D 10.1.1.0 [90/30720] via 172.16.1.1, 00:06:52, FastEthernet0/0

D 10.1.2.0 [90/30720] via 172.16.1.6, 00:03:55, FastEthernet0/1

172.16.0.0/30 is subnetted, 2 subnets

C 172.16.1.0 is directly connected, FastEthernet0/0

C 172.16.1.4 is directly connected, FastEthernet0/1

R2

R2#SHOW IP ROUTE

Codes: C-connected, S-static, I-IGRP, R-RIP, M-mobile, B-BGP

D-EIGRP, EX-EIGRP external, O-OSPF, IA-OSPF inter area

N1-OSPF NSSA external type 1, N2-OSPF NSSA external type 2

E1-OSPF external type 1, E2-OSPF external type 2, E-EGP

I-IS-IS, L1-IS-IS level-1, L2-IS-IS level-2, ia-IS-IS inter area

*-candidate default, U-per-user static route, o-ODR

P-periodic downloaded static route

Gateway of last resort is not set

10.0.0.0/24 is subnetted, 2 subnets

D 10.1.1.0 [90/33280] via 172.16.1.5, 00:05:47, FastEthernet0/0

C 10.1.2.0 is directly connected, FastEthernet0/1

172.16.0.0/30 is subnetted, 2 subnets

D 172.16.1.0 [90/30720] via 172.16.1.5, 00:05:47, FastEthernet0/0

C 172.16.1.4 is directly connected, FastEthernet0/0

3. View information about EIGRP.

R1

R1#show ip protocol

Routing Protocol is "eigrp 10"

Outgoing update filter list for all interfaces is not set

Incoming update filter list for all interfaces is not set

Default networks flagged in outgoing updates

Default networks accepted from incoming updates

EIGRP metric weight K1, K2, K3, K4, K5, 0

EIGRP maximum hopcount 100

EIGRP maximum metric variance 1

Redistributing: eigrp 10

Automatic network summarization is not in effect

Maximum path: 4

Routing for Networks:

172.16.1.0/30

10.1.1.0/24

Routing Information Sources:

Gateway Distance Last Update

172.16.1.2 90 346181

Distance: internal 90 external 170

CNC

CNC#show ip protocols

Routing Protocol is "eigrp 10"

Outgoing update filter list for all interfaces is not set

Incoming update filter list for all interfaces is not set

Default networks flagged in outgoing updates

Default networks accepted from incoming updates

EIGRP metric weight K1, K2, K3, K4, K5, 0

EIGRP maximum hopcount 100

EIGRP maximum metric variance 1

Redistributing: eigrp 10

Automatic network summarization is not in effect

Maximum path: 4

Routing for Networks:

172.16.1.0/30

172.16.1.4/30

Routing Information Sources:

Gateway Distance Last Update

172.16.1.1 90 339203

172.16.1.6 90 475312

Distance: internal 90 external 170

R2

R2#show ip protocols

Routing Protocol is "eigrp 10"

Outgoing update filter list for all interfaces is not set

Incoming update filter list for all interfaces is not set

Default networks flagged in outgoing updates

Default networks accepted from incoming updates

EIGRP metric weight K1, K2, K3, K4, K5, 0

EIGRP maximum hopcount 100

EIGRP maximum metric variance 1

Redistributing: eigrp 10

Automatic network summarization is not in effect

Maximum path: 4

Routing for Networks:

172.16.1.4/30

10.1.2.0/24

Routing Information Sources:

Gateway Distance Last Update

172.16.1.5 90 474044

Distance: internal 90 external 170

Work expansion

Based on the 176 page expansion task of the textbook, learn to use routing interfaces instead of real interface configurations.

(1) Topology diagram

(1) main configuration commands for each router

R1

Interface FastEthernet0/0

Ip address 10.1.1.1 255.255.255.0

Duplex auto

Speed auto

!

Interface FastEthernet0/1

Ip address 172.16.1.1 255.255.255.252

Duplex auto

Speed auto

!

Router eigrp 10

Network 172.16.1.0 0.0.0.3

Network 10.1.1.0 0.0.0.255

No auto-summary

!

Ip classless

CNC

Interface FastEthernet0/0

Ip address 172.16.1.2 255.255.255.252

Duplex auto

Speed auto

!

Interface FastEthernet0/1

Ip address 172.16.1.5 255.255.255.252

Duplex auto

Speed auto

!

Router eigrp 10

Network 172.16.1.0 0.0.0.3

Network 172.16.1.4 0.0.0.3

No auto-summary

!

Ip classless

!

R2

Interface Loopback1

Ip address 10.1.2.1 255.255.255.240

!

Interface Loopback2

Ip address 10.1.2.17 255.255.255.240

!

Interface Loopback3

Ip address 10.1.2.33 255.255.255.240

!

Interface Loopback4

Ip address 10.1.2.49 255.255.255.240

!

Interface FastEthernet0/0

Ip address 172.16.1.6 255.255.255.252

Duplex auto

Speed auto

!

Interface FastEthernet0/1

No ip address

Duplex auto

Speed auto

Shutdown

!

Router eigrp 10

Network 172.16.1.4 0.0.0.3

Network 10.1.2.0 0.0.0.15

Network 10.1.2.16 0.0.0.15

Network 10.1.2.32 0.0.0.15

Network 10.1.2.48 0.0.0.15

No auto-summary

!

Ip classless

(2) analyze the routing of each router

R1

Router#show ip route

Codes: C-connected, S-static, I-IGRP, R-RIP, M-mobile, B-BGP

D-EIGRP, EX-EIGRP external, O-OSPF, IA-OSPF inter area

N1-OSPF NSSA external type 1, N2-OSPF NSSA external type 2

E1-OSPF external type 1, E2-OSPF external type 2, E-EGP

I-IS-IS, L1-IS-IS level-1, L2-IS-IS level-2, ia-IS-IS inter area

*-candidate default, U-per-user static route, o-ODR

P-periodic downloaded static route

Gateway of last resort is not set

10.0.0.0/8 is variably subnetted, 5 subnets, 2 masks

C 10.1.1.0/24 is directly connected, FastEthernet0/0

D 10.1.2.0/28 [90/158720] via 172.16.1.2, 00:18:02, FastEthernet0/1

D 10.1.2.16/28 [90/158720] via 172.16.1.2, 00:18:02, FastEthernet0/1

D 10.1.2.32/28 [90/158720] via 172.16.1.2, 00:18:02, FastEthernet0/1

D 10.1.2.48/28 [90/158720] via 172.16.1.2, 00:18:02, FastEthernet0/1

172.16.0.0/30 is subnetted, 2 subnets

C 172.16.1.0 is directly connected, FastEthernet0/1

D 172.16.1.4 [90/30720] via 172.16.1.2, 00:18:03, FastEthernet0/1

CNC

Router#show ip route

Codes: C-connected, S-static, I-IGRP, R-RIP, M-mobile, B-BGP

D-EIGRP, EX-EIGRP external, O-OSPF, IA-OSPF inter area

N1-OSPF NSSA external type 1, N2-OSPF NSSA external type 2

E1-OSPF external type 1, E2-OSPF external type 2, E-EGP

I-IS-IS, L1-IS-IS level-1, L2-IS-IS level-2, ia-IS-IS inter area

*-candidate default, U-per-user static route, o-ODR

P-periodic downloaded static route

Gateway of last resort is not set

10.0.0.0/8 is variably subnetted, 5 subnets, 2 masks

D 10.1.1.0/24 [90/30720] via 172.16.1.1, 00:18:43, FastEthernet0/0

D 10.1.2.0/28 [90/156160] via 172.16.1.6, 00:18:31, FastEthernet0/1

D 10.1.2.16/28 [90/156160] via 172.16.1.6, 00:18:31, FastEthernet0/1

D 10.1.2.32/28 [90/156160] via 172.16.1.6, 00:18:31, FastEthernet0/1

D 10.1.2.48/28 [90/156160] via 172.16.1.6, 00:18:31, FastEthernet0/1

172.16.0.0/30 is subnetted, 2 subnets

C 172.16.1.0 is directly connected, FastEthernet0/0

C 172.16.1.4 is directly connected, FastEthernet0/1

R2

R2#show ip route

Codes: C-connected, S-static, I-IGRP, R-RIP, M-mobile, B-BGP

D-EIGRP, EX-EIGRP external, O-OSPF, IA-OSPF inter area

N1-OSPF NSSA external type 1, N2-OSPF NSSA external type 2

E1-OSPF external type 1, E2-OSPF external type 2, E-EGP

I-IS-IS, L1-IS-IS level-1, L2-IS-IS level-2, ia-IS-IS inter area

*-candidate default, U-per-user static route, o-ODR

P-periodic downloaded static route

Gateway of last resort is not set

10.0.0.0/8 is variably subnetted, 5 subnets, 2 masks

D 10.1.1.0/24 [90/33280] via 172.16.1.5, 00:18:56, FastEthernet0/0

C 10.1.2.0/28 is directly connected, Loopback1

C 10.1.2.16/28 is directly connected, Loopback2

C 10.1.2.32/28 is directly connected, Loopback3

C 10.1.2.48/28 is directly connected, Loopback4

172.16.0.0/30 is subnetted, 2 subnets

D 172.16.1.0 [90/30720] via 172.16.1.5, 00:18:56, FastEthernet0/0

C 172.16.1.4 is directly connected, FastEthernet0/0

Think about the question:

Question 1: what is the difference between automatic summarization and manual summarization?

Automatic method: when there are multiple crossed small classification network boundaries in the route, these routes are automatically summarized into a large classification network boundary (this is achieved by summarizing subnet address prefixes). Automatic summarization is enabled by default.

Manually: advertise a summary local IP address pool on the specified interface, which is available for dialing clients.

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