EIGRP Basic Configuration

in the previous article, we introduced the EIGRP Overview , in this article we begin to introduce the basic configuration of EIGRP.

1. Topology

Topology with 4 routers, 3 topology types: Peer-to, BMA (broadcast multi-access) and NBMA (non-broadcast multi-access)

650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/6E/1B/wKioL1V0GafAop0AAAA4vTaO5K0896.gif "title=" Campus Network Design-1. GIF "alt=" Wkiol1v0gafaop0aaaa4vtao5k0896.gif "/>

2. Configuring the Environment

GNS3

3. Basic Configuration

3.1 Configure the loopback and straight port IP addresses for each router

Slightly

Configuration of 3.2.NBMA network environment

3.2.1. Configuration of the Frame Relay switch:

Configure Frame Relay as a dynamic Rarp table, and the frame Relay switch sends the data for the 1th number interface of the DLCI 104 to the 11 interface DLCI 401, and DLCI 401 to 104 for DLCI.

650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/6E/1F/wKiom1V0GYyyzixkAAGFV1gNr4Y936.jpg "title=" Qq20150607181334.jpg "alt=" Wkiom1v0gyyyzixkaagfv1gnr4y936.jpg "/>

3.2.2. Frame Relay Interface Encapsulation configuration:

R1#sh Running-config Interface S0/1
Building configuration ...

Current configuration:117 bytes
!
Interface SERIAL0/1
IP address 14.14.14.1 255.255.255.248
Encapsulation Frame-relay
Serial Restart-delay 0
End
R1#show Frame-relay Map
SERIAL0/1 (UP): IP 14.14.14.4 DLCI 104 (0x68,0x1880), dynamic,
Broadcast,, status defined, active

R4#show Running-config Interface S0/1
Building configuration ...

Current configuration:117 bytes
!
Interface SERIAL0/1
IP address 14.14.14.4 255.255.255.248
Encapsulation Frame-relay
Serial Restart-delay 0
End

R4#show Frame-relay Map
SERIAL0/1 (UP): IP 14.14.14.1 DLCI 401 (0x191,0x6410), dynamic,
Broadcast,, status defined, active

R4#ping 14.14.14.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 14.14.14.1, timeout is 2 seconds:
!!!!!
Success rate is percent (5/5), round-trip Min/avg/max = 20/21/28 ms

4. Configuring the EIGRP Routing protocol

Configuration of the 4.1.R1

R1 (config) #router eigrp 1 //enable EIGRP process and join the corresponding 1 as (self-made system), all routers must have the same as number, if different neighbors will not be able to establish.
R1 (config-router) #eigrp Router-id 1.1.1.1 //Configure the route ID, flag the role of the route entry by who brought in, dispensable, does not affect the subsequent configuration, unlike OSPF, In OSPF, if the route ID is not configured (the router will use the maximum interface IP as the route ID) it may cause a virtual link problem.
R1 (config-router) #network 12.12.12.0 0.0.0.7 //Network Detail Declaration method, the anti-mask exact match to 29 bits.
R1 (config-router) #network 13.13.13.13 //main class network notation, which is declared by default with the main class mask (0.0.0.255) if no anti-mask is added.

We can verify that:

R1#show Running-config | Section route
Router EIGRP 1
Network 12.12.12.0 0.0.0.7
Network 13.0.0.0
Auto-summary
EIGRP Router-id 1.1.1.1

R1 (config-router) #network 14.14.14.1 0.0.0.0 //interface details IP declaration method, only declares this interface.
R1 (config-router) #network 1.1.0.0 0.0.255.255///Network declaration method, the IP address range of the interface in the 1.1.0.0 network segment will participate in the declaration of EIGRP.

Confirm that the interface is declared:

R1#show Running-config | Section Router
Router EIGRP 1
Network 1.1.0.0 0.0.255.255
Network 12.12.12.0 0.0.0.7
Network 13.0.0.0
Network 14.14.14.1 0.0.0.0
Auto-summary
EIGRP Router-id 1.1.1.1

See which interfaces participate in the declaration of EIGRP:

R1#show IP EIGRP Interfaces
IP-EIGRP Interfaces for Process 1
Xmit Queue Mean pacing time multicast Pending
Interface peers un/reliable SRTT un/reliable Flow Timer Routes
SE0/2 1 0/0 51 0/15 255 0
SE0/1 0 0/0 0 0/1 0 0
Lo1 0 0/0 0 0/1 0 0
SE0/3 0 0/0 0 0/1 0 0

Configuration of the 4.2.R2
R2 (config) #router eigrp 2 //intentionally configure the as number to be different from R1 to see if it can become an adjacency with R1!
R2 (config-router) #network 12.12.12.12
R2 (config-router) #network 2.2.2.2 0.0.0.0
R2 (config-router) #eigrp Router-id 2.2.2.2
Confirm that the interface has been declared:

R2#show IP EIGRP Interfaces
IP-EIGRP Interfaces for Process 2
Xmit Queue Mean pacing time multicast Pending
Interface peers un/reliable SRTT un/reliable Flow Timer Routes
Lo2 0 0/0 0 0/1 0 0
SE0/1 0 0/0 0 0/1 0 0

Check Neighbor Relationships:

R2#show IP eigrp Neighbors
IP-EIGRP Neighbors for Process 2
r2# //above indicates that R2 cannot form a neighbor relationship with R1.

The following changes the as well to the same as R1:

R2 (config) #router eigrp 1
R2 (config-router) #eigrp Router-id 2.2.2.2
R2 (config-router) #network 2.2.2.2 0.0.0.0
R2 (config-router) #network 12.12.12.2 0.0.0.0
R2 (Config-router) #
*mar 1 03:09:04.215:%dual-5-nbrchange:ip-eigrp (0) 1:neighbor 12.12.12.1 (SERIAL0/1) is up:new adjacency//as change to and R1 And then the neighbor relationship got up.

Configuration of the 4.3.R3

R3 (config) #router eigrp 1
R3 (config-router) #eigrp Router-id 3.3.3.3
R3 (config-router) #network 0.0.0.0 255.255.255.255 //Full interface declaration method, can be omitted: 0.0.0.0. Equivalent to 0.0.0.0 255.255.255.255.

Configuration of the 4.4.R4

R4 (config) #router eigrp 1
R4 (config-router) #eigrp Router-id 4.4.4.4
R4 (config-router) #network 4.4.4.4 0.0.0.255
R4 (config-router) #net 14.14.14.0 0.0.0.7
*mar 1 02:14:38.467:%dual-5-nbrchange:ip-eigrp (0) 1:neighbor 14.14.14.1 (SERIAL0/1) is up:new adjacency

This article is from the "E-Network Deep" blog, please be sure to keep this source http://jettcai.blog.51cto.com/1447637/1659461

EIGRP Basic Configuration