IGRPEIGRP基礎設定  

IGRPCisco專屬路由協定

EIGRPIGRP的加強版,IGRP目前已不支援了。

EIGRP支援的Hop數量最多到255點,也支援無級別網路,適用於大型網路,也支援VLSMAuto_summary

EIGRP更新路由表必須要先收到Hello封包或ACK封包,且AS(Autonomous System)號碼要相同,距離計算係數值-k值要相同。

 

EIGRP設定方法:

Router-0(config)#router eigrp 10  啟用EIGRP,並宣告AS10

Router-0(config-router)#network 192.168.1.0 255.255.255.128  /25

Router-0(config-router)#network 10.1.1.0 255.255.255.248  /29

Router-0(config-router)#no auto-summary

檢查是否ping的到別台電腦

PC>ping 192.168.1.129

 

Pinging 192.168.1.129 with 32 bytes of data:

 

Reply from 192.168.1.129: bytes=32 time=1ms TTL=126

Reply from 192.168.1.129: bytes=32 time=0ms TTL=126

Reply from 192.168.1.129: bytes=32 time=0ms TTL=126

Reply from 192.168.1.129: bytes=32 time=0ms TTL=126

檢查Routing Table

Router-2#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

     10.0.0.0/29 is subnetted, 1 subnets

C       10.1.1.0 is directly connected, FastEthernet0/1

C    192.168.0.0/24 is directly connected, FastEthernet0/0

     192.168.1.0/25 is subnetted, 2 subnets

D       192.168.1.0 [90/30720] via 10.1.1.1, 00:01:42, FastEthernet0/1

D       192.168.1.128 [90/30720] via 10.1.1.2, 00:01:42, FastEthernet0/1

Router-2#

只顯示Routing TableEIGRP的項目

Router-2#show ip route eigrp

     192.168.1.0/25 is subnetted, 2 subnets

D       192.168.1.0 [90/30720] via 10.1.1.1, 00:05:25, FastEthernet0/1

D       192.168.1.128 [90/30720] via 10.1.1.2, 00:05:25, FastEthernet0/1

顯示所有EIGRP的鄰居

Router-2#show ip eigrp neighbors

IP-EIGRP neighbors for process 10

H   Address         Interface      Hold Uptime    SRTT   RTO   Q   Seq

                                   (sec)          (ms)        Cnt  Num

0   10.1.1.1        Fa0/1          10   00:06:15  40     1000  0   6

1   10.1.1.2        Fa0/1          13   00:06:15  40     1000  0   8

顯示EIGRP拓樸表的內容

Router-2#show ip eigrp topology

IP-EIGRP Topology Table for AS 10

 

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,

       r - Reply status

 

P 192.168.0.0/24, 1 successors, FD is 28160

         via Connected, FastEthernet0/0

P 10.1.1.0/29, 1 successors, FD is 28160

         via Connected, FastEthernet0/1

P 192.168.1.128/25, 1 successors, FD is 30720

         via 10.1.1.2 (30720/28160), FastEthernet0/1

P 192.168.1.0/25, 1 successors, FD is 30720

         via 10.1.1.1 (30720/28160), FastEthernet0/1

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