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Routing EIGRP (Enchanced Interior Gateway Routing Protocol)

            EIGRP mak protokolu routing hodi hatene maneira hanesan atu enkamina tráfiku iha rede. Ida-ne'e uza algoritmu DUAL (Diffusing Update Algorithm) hodi hatene kaminu boot liu ba tráfiku. EIGRP hanesan protokolu routing avançadu ne'ebé dezenvolve hosi Cisco Systems.

            Iha EIGRP, kada router armazena informasaun kona-ba topolojia rede nian, inklui IP address sira, métrika, ka hop count (numeru boot), hodi kria tabela routing ne'ebé hatudu rota sira ba destinu. EIGRP permite atu hatene maneira hanesan atu enkamina tráfiku liu hosi múltiplu kaminu, haree atu assegura alta disponibilidade no redundánsia ba rede.

Prosesu konfigurasaun EIGRP inklui:

  1. Ativa EIGRP iha Interface ba rede lokal:

    • Loke iha modo konfigurasaun router.
    • Ensinia EIGRP iha interface sira ne'ebé konektadu ba rede lokal.
    • Uza komandu "router eigrp [AS number]" atu ativa EIGRP hodi define Autonomous System (AS) number. AS number mak numeru ne'ebé identifika rede ne'ebé uza EIGRP.

  2. Define Neighbor Routers:

    • Router sira ne'ebé iha mesmu AS sei estabelese relasaun neighbor.
    • Router sira sei troka EIGRP updates hodi hatene topolojia boot liu ba rede.
    • Komunikasaun entre router sira mak iha hanesan hodi hatene rota boot liu ba tráfiku.

  3. Konsidera Métrika EIGRP:

    • EIGRP uza métrika boot liu hanesan kombinasaun hosi bandwith, delay, load, ka reliability atu hatene kaminu boot liu ba tráfiku.
    • Métrika boot liu hosi EIGRP bele adapta ho kondisaun rede ne'ebé kambia, hatudu tráfiku boot liu hosi kaminu ne'ebé boot efetivu.

  4. Monitorizasaun EIGRP:

    • Monitoriza topolojia rede uza komandu "show ip eigrp topology".
    • Observa neighbor routers hosi router nia perspetiva uza komandu "show ip eigrp neighbors".

  5. Seguransa EIGRP:

    • Uza autentikasaun EIGRP atu asegura katak komunikasaun EIGRP seguru. Hanesan, autentikasaun kriptografika uza MD5.
    • Define autentikasaun EIGRP ho komandu "ip authentication mode eigrp".

EIGRP boot importante iha ambiente korporativu, espesialmente iha ambiente Cisco, tanba boot flexibilidade, rendimentu boot liu, no mekanizmu boot liu ba redundánsia ba rede. Hau espera ke informasaun ne'e ajuda ita atu hatudu prosesu konfigurasaun EIGRP ho tetun.


Ref :
http://catatanulun.blogspot.com/2014/01/eigrp-enchanced-interior-gateway.html

Mai ita koko halo tuir dezenho ida iha kraik né :



Dezenho iha Leten né Router_3 R3 hanesan Router gateway entre router hotu iha laran, configurasaun iha router R3 mak hanesan tuir mai né:
 ======================================
hostname R3
!
!
no ip cef
no ipv6 cef
!
!
spanning-tree mode pvst
!
interface FastEthernet0/0
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface FastEthernet0/1
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface Serial0/0/0
 ip address 172.78.0.1 255.255.255.252
!
interface Serial0/1/0
 ip address 172.72.0.1 255.255.255.252
 clock rate 2000000
!
interface Serial0/2/0
 ip address 172.76.0.1 255.255.255.252
 clock rate 2000000
!
interface Serial0/3/0
 ip address 172.74.0.1 255.255.255.252
 clock rate 2000000
!
interface Vlan1
 no ip address
 shutdown
!
router eigrp 222
 network 172.76.0.0
 network 174.76.0.0
 network 172.78.0.0
 network 172.72.0.0
 network 172.74.0.0
 auto-summary
!
ip classless
!
ip flow-export version 9
!
!
!
no cdp run
!
line con 0
!
line aux 0
!
line vty 0 4
 login
!
!
end

koko teste ;

R3#sh ip eigrp neighbors
IP-EIGRP neighbors for process 222
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 172.76.0.2 Se0/2/0 13 00:12:21 40 1000 0 21

1 172.78.0.2 Se0/0/0 13 00:12:20 40 1000 0 19

2 172.74.0.2 Se0/3/0 14 00:12:19 40 1000 0 37

3 172.72.0.2 Se0/1/0 14 00:12:19 40 1000 0 38

R3#

=================================
Konfigurasaun iha R1
=================================
 hostname R1
!
!
ip cef
no ipv6 cef
!
spanning-tree mode pvst
!

interface FastEthernet0/0
 ip address 172.70.0.254 255.255.255.0
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface Serial0/0/0
 ip address 172.72.0.2 255.255.255.252
!
interface Serial0/1/0
 ip address 172.73.0.2 255.255.255.252
!
interface Serial0/2/0
 ip address 172.71.0.1 255.255.255.252
 clock rate 2000000
!
interface Serial0/3/0
 no ip address
 clock rate 2000000
 shutdown
!
interface Vlan1
 no ip address
 shutdown
!
router eigrp 222
 network 172.71.0.0
 network 172.72.0.0
 network 172.73.0.0
 network 172.70.0.0
 auto-summary
!
ip classless
!
ip flow-export version 9
!
!
line con 0
!
line aux 0
!
line vty 0 4
 login
!
!
!
end

koko teste R1#sh ip eigrp neighbors 

 R1#sh ip eigrp neighbors
IP-EIGRP neighbors for process 222
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 172.71.0.2 Se0/2/0 10 00:22:30 40 1000 0 20

1 172.72.0.1 Se0/0/0 11 00:22:29 40 1000 0 23

2 172.73.0.1 Se0/1/0 12 00:22:26 40 1000 0 38
==================================
 Konfigurasaun ih Router_2 R2
==================================

hostname R2
!
!
ip cef
no ipv6 cef
!
!
spanning-tree mode pvst
!
!
interface FastEthernet0/0
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface FastEthernet0/1
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface Serial0/0/0
 ip address 172.78.0.2 255.255.255.252
 clock rate 2000000
!
interface Serial0/1/0
 ip address 172.71.0.2 255.255.255.252
!
interface Serial0/2/0
 ip address 172.77.0.2 255.255.255.252
 clock rate 2000000
!
interface Serial0/3/0
 no ip address
 clock rate 2000000
 shutdown
!
interface Vlan1
 no ip address
 shutdown
!
router eigrp 222
 network 172.78.0.0
 network 172.71.0.0
 network 172.77.0.0
 auto-summary
!
ip classless
!
ip flow-export version 9
!
!
line con 0
!
line aux 0
!
line vty 0 4
 login
!
end


R2#sh ip eigrp neighbors
IP-EIGRP neighbors for process 222
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 172.71.0.1 Se0/1/0 14 00:24:44 40 1000 0 38

1 172.78.0.1 Se0/0/0 11 00:24:44 40 1000 0 22

===================================
Konfigurasaun iha Router_4 R4
===================================
hostname R4
!
!
ip cef
no ipv6 cef
!
!
spanning-tree mode pvst
!
interface FastEthernet0/0
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface FastEthernet0/1
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface Serial0/0/0
 ip address 172.73.0.1 255.255.255.252
 clock rate 2000000
!
interface Serial0/1/0
 ip address 172.75.0.1 255.255.255.252
 clock rate 2000000
!
interface Serial0/2/0
 ip address 172.74.0.2 255.255.255.252
!
interface Serial0/3/0
 no ip address
 clock rate 2000000
 shutdown
!
interface Vlan1
 no ip address
 shutdown
!
router eigrp 222
 network 172.75.0.0
 network 172.74.0.0
 network 172.73.0.0
 auto-summary
!
ip classless
!
ip flow-export version 9
!
!
!
no cdp run
!
!
line con 0
!
line aux 0
!
line vty 0 4
 login
!
!
!
end

R4#sh ip eigrp neighbors
IP-EIGRP neighbors for process 222
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 172.75.0.2 Se0/1/0 10 00:26:13 40 1000 0 20

1 172.74.0.1 Se0/2/0 11 00:26:13 40 1000 0 22

2 172.73.0.2 Se0/0/0 14 00:26:10 40 1000 0 39

====================================
Konfigurasaun iha Router_5 R5
====================================
hostname R5
!
!
ip cef
no ipv6 cef
!
!
spanning-tree mode pvst
!
interface FastEthernet0/0
 ip address 172.79.0.230 255.255.255.0
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface Serial0/0/0
 ip address 172.76.0.2 255.255.255.252
!
interface Serial0/1/0
 ip address 172.75.0.2 255.255.255.252
!
interface Serial0/2/0
 ip address 172.77.0.1 255.255.255.252
!
interface Serial0/3/0
 no ip address
 clock rate 2000000
 shutdown
!
interface Vlan1
 no ip address
 shutdown
!
router eigrp 222
 network 172.76.0.0
 network 172.75.0.0
 network 172.7.0.0
 network 172.79.0.0
 auto-summary
!
ip classless
!
ip flow-export version 9
!
!
!
no cdp run
!
!
line con 0
!
line aux 0
!
line vty 0 4
 login
!
!
!
end

R5# sh ip eigrp neighbors
IP-EIGRP neighbors for process 222
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 172.76.0.1 Se0/0/0 10 00:27:44 40 1000 0 22

1 172.75.0.1 Se0/1/0 13 00:27:43 40 1000 0 37

====================================

koko halo teste ping husi Pc0 ba qualquer router e teste ba pc1

ex:

 Ex2 husi pco ba pc1


 obrigado.


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